$MPWR
Monolithic Power Systems Inc

2021 Q1 Form 10-Q Financial Statement

#000143774921011491 Filed on May 10, 2021

View on sec.gov

Income Statement

Concept 2021 Q1 2020 Q1
Revenue $254.5M $165.8M
YoY Change 53.49% 17.27%
Cost Of Revenue $113.4M $74.33M
YoY Change 52.56% 17.32%
Gross Profit $141.1M $91.45M
YoY Change 54.25% 17.23%
Gross Profit Margin 55.44% 55.16%
Selling, General & Admin $51.45M $32.16M
YoY Change 59.97% 5.27%
% of Gross Profit 36.48% 35.17%
Research & Development $41.89M $25.96M
YoY Change 61.4% 1.96%
% of Gross Profit 29.7% 28.38%
Depreciation & Amortization $5.529M $4.328M
YoY Change 27.75% 32.96%
% of Gross Profit 3.92% 4.73%
Operating Expenses $94.97M $60.46M
YoY Change 57.08% 7.41%
Operating Profit $46.09M $30.99M
YoY Change 48.73% 42.68%
Interest Expense $2.282M $2.374M
YoY Change -3.88% 39.98%
% of Operating Profit 4.95% 7.66%
Other Income/Expense, Net $2.587M -$1.714M
YoY Change -250.93% -151.3%
Pretax Income $48.67M $29.27M
YoY Change 66.28% 16.82%
Income Tax $3.300M -$6.500M
% Of Pretax Income 6.78% -22.21%
Net Earnings $45.41M $35.76M
YoY Change 27.01% 36.57%
Net Earnings / Revenue 17.85% 21.57%
Basic Earnings Per Share $1.00 $0.80
Diluted Earnings Per Share $0.95 $0.77
COMMON SHARES
Basic Shares Outstanding 45.50M 44.46M
Diluted Shares Outstanding 47.71M 46.67M

Balance Sheet

Concept 2021 Q1 2020 Q1
SHORT-TERM ASSETS
Cash & Short-Term Investments $638.8M $489.3M
YoY Change 30.55% 36.3%
Cash & Equivalents $218.4M $154.9M
Short-Term Investments $420.5M $334.4M
Other Short-Term Assets $24.33M $29.68M
YoY Change -18.04% 117.76%
Inventory $175.2M $131.5M
Prepaid Expenses $7.225M $18.44M
Receivables $84.10M $54.30M
Other Receivables $13.50M $8.300M
Total Short-Term Assets $922.4M $704.8M
YoY Change 30.88% 22.77%
LONG-TERM ASSETS
Property, Plant & Equipment $297.7M $236.8M
YoY Change 25.73% 15.24%
Goodwill $6.571M $6.571M
YoY Change 0.0% 0.0%
Intangibles
YoY Change
Long-Term Investments $3.100M
YoY Change -6.06%
Other Assets $63.78M $42.46M
YoY Change 50.21% 1.13%
Total Long-Term Assets $385.8M $302.7M
YoY Change 27.43% 10.43%
TOTAL ASSETS
Total Short-Term Assets $922.4M $704.8M
Total Long-Term Assets $385.8M $302.7M
Total Assets $1.308B $1.008B
YoY Change 29.84% 18.78%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable $57.24M $37.75M
YoY Change 51.61% 38.49%
Accrued Expenses $74.37M $56.11M
YoY Change 32.54% 23.73%
Deferred Revenue $6.998M $5.221M
YoY Change 34.04% 78.37%
Short-Term Debt $0.00 $0.00
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities $187.9M $112.5M
YoY Change 67.04% 22.84%
LONG-TERM LIABILITIES
Long-Term Debt $0.00 $0.00
YoY Change
Other Long-Term Liabilities $61.64M $44.22M
YoY Change 39.39% 5.28%
Total Long-Term Liabilities $61.64M $44.22M
YoY Change 39.39% 5.28%
TOTAL LIABILITIES
Total Short-Term Liabilities $187.9M $112.5M
Total Long-Term Liabilities $61.64M $44.22M
Total Liabilities $286.6M $194.3M
YoY Change 47.5% 15.69%
SHAREHOLDERS EQUITY
Retained Earnings $315.2M $241.5M
YoY Change 30.54% 19.31%
Common Stock
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity $1.022B $813.2M
YoY Change
Total Liabilities & Shareholders Equity $1.308B $1.008B
YoY Change 29.84% 18.78%

Cashflow Statement

Concept 2021 Q1 2020 Q1
OPERATING ACTIVITIES
Net Income $45.41M $35.76M
YoY Change 27.01% 36.57%
Depreciation, Depletion And Amortization $5.529M $4.328M
YoY Change 27.75% 32.96%
Cash From Operating Activities $77.06M $51.42M
YoY Change 49.86% 32.4%
INVESTING ACTIVITIES
Capital Expenditures $18.97M $9.951M
YoY Change 90.63% -82.95%
Acquisitions
YoY Change
Other Investing Activities -$163.9M -$54.50M
YoY Change 200.73% -290.56%
Cash From Investing Activities -$182.9M -$64.46M
YoY Change 183.7% 109.41%
FINANCING ACTIVITIES
Cash Dividend Paid $23.47M $17.43M
YoY Change 34.66% 36.56%
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities -$10.99M -$4.056M
YoY Change 171.03% 432.98%
NET CHANGE
Cash From Operating Activities $77.06M $51.42M
Cash From Investing Activities -$182.9M -$64.46M
Cash From Financing Activities -$10.99M -$4.056M
Net Change In Cash -$116.6M -$18.08M
YoY Change 544.82% -347.87%
FREE CASH FLOW
Cash From Operating Activities $77.06M $51.42M
Capital Expenditures $18.97M $9.951M
Free Cash Flow $58.09M $41.47M
YoY Change 40.08% -312.22%

Facts In Submission

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CY2020Q1 us-gaap Effect Of Exchange Rate On Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
-985000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-116584000 USD
CY2020Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Including Exchange Rate Effect
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffect
-18080000 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
335071000 USD
CY2019Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
173076000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
218487000 USD
CY2020Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
154996000 USD
CY2021Q1 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
377000 USD
CY2020Q1 us-gaap Income Taxes Paid Net
IncomeTaxesPaidNet
279000 USD
CY2021Q1 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
12963000 USD
CY2020Q1 us-gaap Capital Expenditures Incurred But Not Yet Paid
CapitalExpendituresIncurredButNotYetPaid
10909000 USD
CY2021Q1 mpwr Dividends And Dividend Equivalents Accrued
DividendsAndDividendEquivalentsAccrued
29000000 USD
CY2020Q1 mpwr Dividends And Dividend Equivalents Accrued
DividendsAndDividendEquivalentsAccrued
23725000 USD
CY2021Q1 us-gaap Use Of Estimates
UseOfEstimates
<p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -1pt;"><b><i>Use of Estimates</i></b></p> <p style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -9pt;"> </p> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -1pt;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and reported amounts of revenue and expenses during the reporting period. Significant estimates and assumptions used in these condensed consolidated financial statements primarily include those related to revenue recognition, inventory valuation, valuation of share-based awards, contingencies and income tax valuation allowances. Actual results could differ from these estimates and assumptions, and any such differences <em style="font: inherit;"> may </em>be material to the Company’s condensed consolidated financial statements. </p> <p style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -9pt;"> </p> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -1pt;">The COVID-<em style="font: inherit;">19</em> pandemic has significantly affected the global economy and is disrupting business operations worldwide for an unknown period of time until the disease is contained. Although these events did <em style="font: inherit;">not</em> adversely affect the Company’s overall operating results and financial condition for the <em style="font: inherit;">three</em> months ended <em style="font: inherit;"> March 31, 2021</em><i>,</i> they could have a negative impact on the Company’s business operations in future periods. However, the Company is currently unable to predict the size and duration of such impact.</p> <p style="font-family: &quot;Times New Roman&quot;; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -9pt;"> </p> <p style="font-family: Times New Roman; font-size: 10pt; font-variant: normal; margin: 0pt 0pt 0pt -1pt;">As of the date of issuance of these condensed consolidated financial statements, the Company is <em style="font: inherit;">not</em> aware of any specific event or circumstance related to the COVID-<em style="font: inherit;">19</em> pandemic that would require management to update the significant estimates and assumptions used in the preparation of the condensed consolidated financial statements, as compared to those disclosed in the Annual Report on Form <em style="font: inherit;">10</em>-K for the year ended <em style="font: inherit;"> December 31, 2020</em><i>.</i> As new events continue to evolve and additional information becomes available, any changes to these estimates and assumptions will be recognized in the condensed consolidated financial statements as soon as they become known.</p>
CY2021Q1 mpwr Lapse Period For Consignment
LapsePeriodForConsignment
P60D
CY2021Q1 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
84100000 USD
CY2020Q4 us-gaap Accounts Receivable Net Current
AccountsReceivableNetCurrent
66800000 USD
CY2021Q1 us-gaap Contract With Customer Liability Revenue Recognized
ContractWithCustomerLiabilityRevenueRecognized
6700000 USD
CY2021Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
28583000 USD
CY2020Q1 us-gaap Allocated Share Based Compensation Expense
AllocatedShareBasedCompensationExpense
18562000 USD
CY2021Q1 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
430000 USD
CY2020Q1 us-gaap Employee Service Share Based Compensation Tax Benefit From Compensation Expense
EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense
470000 USD
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
3105000
CY2020Q4 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
87.42
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod
387000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue
353.33
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriod
460000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Vested In Period Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsVestedInPeriodWeightedAverageGrantDateFairValue
82.43
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeited In Period
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeitedInPeriod
12000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Forfeitures Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValue
94.88
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber
3020000
CY2021Q1 us-gaap Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value
ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue
122.26
CY2021Q1 us-gaap Share Price
SharePrice
353.21
CY2021Q1 us-gaap Share Price
SharePrice
374.57
CY2021Q1 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
26055000 USD
CY2020Q4 us-gaap Inventory Raw Materials Net Of Reserves
InventoryRawMaterialsNetOfReserves
25503000 USD
CY2021Q1 us-gaap Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
90571000 USD
CY2020Q4 us-gaap Inventory Work In Process Net Of Reserves
InventoryWorkInProcessNetOfReserves
77100000 USD
CY2021Q1 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
58597000 USD
CY2020Q4 us-gaap Inventory Finished Goods Net Of Reserves
InventoryFinishedGoodsNetOfReserves
54459000 USD
CY2021Q1 us-gaap Inventory Net
InventoryNet
175223000 USD
CY2020Q4 us-gaap Inventory Net
InventoryNet
157062000 USD
CY2021Q1 mpwr Tax Withholding Share Based Payment Arrangement Proceeds Receivable
TaxWithholdingShareBasedPaymentArrangementProceedsReceivable
11428000 USD
CY2020Q4 mpwr Tax Withholding Share Based Payment Arrangement Proceeds Receivable
TaxWithholdingShareBasedPaymentArrangementProceedsReceivable
12504000 USD
CY2021Q1 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
7225000 USD
CY2020Q4 us-gaap Prepaid Expense Current
PrepaidExpenseCurrent
5032000 USD
CY2021Q1 us-gaap Interest Receivable Current
InterestReceivableCurrent
2126000 USD
CY2020Q4 us-gaap Interest Receivable Current
InterestReceivableCurrent
1914000 USD
CY2021Q1 mpwr Product Return Assets Current
ProductReturnAssetsCurrent
1724000 USD
CY2020Q4 mpwr Product Return Assets Current
ProductReturnAssetsCurrent
1684000 USD
CY2021Q1 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
1822000 USD
CY2020Q4 us-gaap Other Assets Miscellaneous Current
OtherAssetsMiscellaneousCurrent
1846000 USD
CY2021Q1 us-gaap Other Assets Current
OtherAssetsCurrent
24325000 USD
CY2020Q4 us-gaap Other Assets Current
OtherAssetsCurrent
22980000 USD
CY2021Q1 us-gaap Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
48138000 USD
CY2020Q4 us-gaap Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
46146000 USD
CY2021Q1 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
5845000 USD
CY2020Q4 us-gaap Operating Lease Right Of Use Asset
OperatingLeaseRightOfUseAsset
3719000 USD
CY2021Q1 us-gaap Prepaid Expense Other Noncurrent
PrepaidExpenseOtherNoncurrent
2503000 USD
CY2020Q4 us-gaap Prepaid Expense Other Noncurrent
PrepaidExpenseOtherNoncurrent
2340000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Securities Noncurrent
AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
2820000 USD
CY2020Q4 us-gaap Available For Sale Securities Debt Securities Noncurrent
AvailableForSaleSecuritiesDebtSecuritiesNoncurrent
2861000 USD
CY2021Q1 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
3180000 USD
CY2020Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
3400000 USD
CY2021Q1 us-gaap Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
1296000 USD
CY2020Q4 us-gaap Other Assets Miscellaneous Noncurrent
OtherAssetsMiscellaneousNoncurrent
1372000 USD
CY2021Q1 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
63782000 USD
CY2020Q4 us-gaap Other Assets Noncurrent
OtherAssetsNoncurrent
59838000 USD
CY2021Q1 mpwr Dividends And Dividend Equivalents
DividendsAndDividendEquivalents
31472000 USD
CY2020Q4 mpwr Dividends And Dividend Equivalents
DividendsAndDividendEquivalents
26435000 USD
CY2021Q1 mpwr Stock Rotation Reserve And Accrued Sales Returns
StockRotationReserveAndAccruedSalesReturns
6240000 USD
CY2020Q4 mpwr Stock Rotation Reserve And Accrued Sales Returns
StockRotationReserveAndAccruedSalesReturns
6005000 USD
CY2021Q1 mpwr Accrued Purchases Of Property And Equipment Current
AccruedPurchasesOfPropertyAndEquipmentCurrent
5339000 USD
CY2020Q4 mpwr Accrued Purchases Of Property And Equipment Current
AccruedPurchasesOfPropertyAndEquipmentCurrent
5841000 USD
CY2021Q1 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
5545000 USD
CY2020Q4 us-gaap Accrued Income Taxes Current
AccruedIncomeTaxesCurrent
3755000 USD
CY2021Q1 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
6998000 USD
CY2020Q4 us-gaap Contract With Customer Liability Current
ContractWithCustomerLiabilityCurrent
7238000 USD
CY2021Q1 us-gaap Accrued Sales Commission Current
AccruedSalesCommissionCurrent
1252000 USD
CY2020Q4 us-gaap Accrued Sales Commission Current
AccruedSalesCommissionCurrent
1107000 USD
CY2021Q1 us-gaap Product Warranty Accrual Classified Current
ProductWarrantyAccrualClassifiedCurrent
9941000 USD
CY2020Q4 us-gaap Product Warranty Accrual Classified Current
ProductWarrantyAccrualClassifiedCurrent
6895000 USD
CY2021Q1 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
5627000 USD
CY2020Q4 us-gaap Other Accrued Liabilities Current
OtherAccruedLiabilitiesCurrent
4278000 USD
CY2021Q1 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
74367000 USD
CY2020Q4 us-gaap Accrued Liabilities Current
AccruedLiabilitiesCurrent
62960000 USD
CY2021Q1 us-gaap Deferred Compensation Liability Classified Noncurrent
DeferredCompensationLiabilityClassifiedNoncurrent
49837000 USD
CY2020Q4 us-gaap Deferred Compensation Liability Classified Noncurrent
DeferredCompensationLiabilityClassifiedNoncurrent
48280000 USD
CY2021Q1 mpwr Dividend Equivalents Noncurrent
DividendEquivalentsNoncurrent
8323000 USD
CY2020Q4 mpwr Dividend Equivalents Noncurrent
DividendEquivalentsNoncurrent
7871000 USD
CY2021Q1 us-gaap Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
30000 USD
CY2020Q4 us-gaap Other Accrued Liabilities Noncurrent
OtherAccruedLiabilitiesNoncurrent
29000 USD
CY2021Q1 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
61644000 USD
CY2020Q4 us-gaap Other Liabilities Noncurrent
OtherLiabilitiesNoncurrent
57873000 USD
CY2021Q1 us-gaap Operating Lease Cost
OperatingLeaseCost
499000 USD
CY2020Q1 us-gaap Operating Lease Cost
OperatingLeaseCost
366000 USD
CY2021Q1 us-gaap Short Term Lease Cost
ShortTermLeaseCost
121000 USD
CY2020Q1 us-gaap Short Term Lease Cost
ShortTermLeaseCost
77000 USD
CY2021Q1 us-gaap Lease Cost
LeaseCost
620000 USD
CY2020Q1 us-gaap Lease Cost
LeaseCost
443000 USD
CY2021Q1 us-gaap Operating Lease Payments
OperatingLeasePayments
312000 USD
CY2020Q1 us-gaap Operating Lease Payments
OperatingLeasePayments
373000 USD
CY2021Q1 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
2940000 USD
CY2020Q1 us-gaap Right Of Use Asset Obtained In Exchange For Operating Lease Liability
RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability
277000 USD
CY2021Q1 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P3Y7M6D
CY2020Q4 us-gaap Operating Lease Weighted Average Remaining Lease Term1
OperatingLeaseWeightedAverageRemainingLeaseTerm1
P2Y8M12D
CY2021Q1 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.023 pure
CY2020Q4 us-gaap Operating Lease Weighted Average Discount Rate Percent
OperatingLeaseWeightedAverageDiscountRatePercent
0.027 pure
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Remainder Of Fiscal Year
LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear
1602000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Due Next Twelve Months
LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths
1582000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Due Year Two
LesseeOperatingLeaseLiabilityPaymentsDueYearTwo
1015000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Due Year Three
LesseeOperatingLeaseLiabilityPaymentsDueYearThree
829000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Due Year Four
LesseeOperatingLeaseLiabilityPaymentsDueYearFour
637000 USD
CY2021Q1 mpwr Lessee Operating Lease Liability To Be Paid After Year Four
LesseeOperatingLeaseLiabilityToBePaidAfterYearFour
8000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Payments Due
LesseeOperatingLeaseLiabilityPaymentsDue
5673000 USD
CY2021Q1 us-gaap Lessee Operating Lease Liability Undiscounted Excess Amount
LesseeOperatingLeaseLiabilityUndiscountedExcessAmount
266000 USD
CY2021Q1 mpwr Lessee Operating Lease Lease Not Yet Commenced Future Lease Obligations
LesseeOperatingLeaseLeaseNotYetCommencedFutureLeaseObligations
4000000.0 USD
CY2021Q1 us-gaap Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
300000 USD
CY2020Q1 us-gaap Operating Lease Lease Income Lease Payments
OperatingLeaseLeaseIncomeLeasePayments
400000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received Remainder Of Fiscal Year
LessorOperatingLeasePaymentsToBeReceivedRemainderOfFiscalYear
1691000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received Next Twelve Months
LessorOperatingLeasePaymentsToBeReceivedNextTwelveMonths
2241000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received Two Years
LessorOperatingLeasePaymentsToBeReceivedTwoYears
1568000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received Three Years
LessorOperatingLeasePaymentsToBeReceivedThreeYears
581000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received Four Years
LessorOperatingLeasePaymentsToBeReceivedFourYears
59000 USD
CY2021Q1 us-gaap Lessor Operating Lease Payments To Be Received
LessorOperatingLeasePaymentsToBeReceived
6140000 USD
CY2021Q1 us-gaap Net Income Loss
NetIncomeLoss
45413000 USD
CY2020Q1 us-gaap Net Income Loss
NetIncomeLoss
35756000 USD
CY2021Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
45498000
CY2020Q1 us-gaap Weighted Average Number Of Shares Outstanding Basic
WeightedAverageNumberOfSharesOutstandingBasic
44455000
CY2021Q1 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
2213000
CY2020Q1 us-gaap Weighted Average Number Diluted Shares Outstanding Adjustment
WeightedAverageNumberDilutedSharesOutstandingAdjustment
2215000
CY2021Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
47711000
CY2020Q1 us-gaap Weighted Average Number Of Diluted Shares Outstanding
WeightedAverageNumberOfDilutedSharesOutstanding
46670000
CY2021Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
1.00
CY2020Q1 us-gaap Earnings Per Share Basic
EarningsPerShareBasic
0.80
CY2021Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.95
CY2020Q1 us-gaap Earnings Per Share Diluted
EarningsPerShareDiluted
0.77
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
254455000 USD
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
165778000 USD
CY2021Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
254455000 USD
CY2020Q1 us-gaap Revenue From Contract With Customer Excluding Assessed Tax
RevenueFromContractWithCustomerExcludingAssessedTax
165778000 USD
CY2021Q1 us-gaap Noncurrent Assets
NoncurrentAssets
297741000 USD
CY2020Q4 us-gaap Noncurrent Assets
NoncurrentAssets
281528000 USD
CY2020Q4 us-gaap Standard Product Warranty Accrual
StandardProductWarrantyAccrual
6895000 USD
CY2019Q4 us-gaap Standard Product Warranty Accrual
StandardProductWarrantyAccrual
1139000 USD
CY2021Q1 us-gaap Standard Product Warranty Accrual Warranties Issued
StandardProductWarrantyAccrualWarrantiesIssued
3609000 USD
CY2020Q1 us-gaap Standard Product Warranty Accrual Warranties Issued
StandardProductWarrantyAccrualWarrantiesIssued
541000 USD
CY2021Q1 us-gaap Product Warranty Accrual Payments
ProductWarrantyAccrualPayments
313000 USD
CY2020Q1 us-gaap Product Warranty Accrual Payments
ProductWarrantyAccrualPayments
111000 USD
CY2021Q1 us-gaap Product Warranty Accrual Preexisting Increase Decrease
ProductWarrantyAccrualPreexistingIncreaseDecrease
250000 USD
CY2020Q1 us-gaap Product Warranty Accrual Preexisting Increase Decrease
ProductWarrantyAccrualPreexistingIncreaseDecrease
425000 USD
CY2021Q1 us-gaap Standard Product Warranty Accrual
StandardProductWarrantyAccrual
9941000 USD
CY2020Q1 us-gaap Standard Product Warranty Accrual
StandardProductWarrantyAccrual
1144000 USD
CY2021Q1 us-gaap Purchase Obligation
PurchaseObligation
152200000 USD
CY2020Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
2179000 USD
CY2020Q4 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
258000 USD
CY2020Q4 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
297365000 USD
CY2021Q1 us-gaap Cash
Cash
197744000 USD
CY2020Q4 us-gaap Cash
Cash
300609000 USD
CY2021Q1 us-gaap Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
20624000 USD
CY2020Q4 us-gaap Money Market Funds At Carrying Value
MoneyMarketFundsAtCarryingValue
34335000 USD
CY2021Q1 us-gaap Certificates Of Deposit At Carrying Value
CertificatesOfDepositAtCarryingValue
106763000 USD
CY2020Q4 us-gaap Certificates Of Deposit At Carrying Value
CertificatesOfDepositAtCarryingValue
0 USD
CY2021Q1 us-gaap Commercial Paper At Carrying Value
CommercialPaperAtCarryingValue
0 USD
CY2020Q4 us-gaap Commercial Paper At Carrying Value
CommercialPaperAtCarryingValue
2999000 USD
CY2021Q1 us-gaap Us Government Securities At Carrying Value
USGovernmentSecuritiesAtCarryingValue
7491000 USD
CY2020Q4 us-gaap Us Government Securities At Carrying Value
USGovernmentSecuritiesAtCarryingValue
7499000 USD
CY2021Q1 mpwr Cash Cash Equivalents And Investments
CashCashEquivalentsAndInvestments
641643000 USD
CY2020Q4 mpwr Cash Cash Equivalents And Investments
CashCashEquivalentsAndInvestments
597974000 USD
CY2021Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
218368000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
334944000 USD
CY2021Q1 us-gaap Short Term Investments
ShortTermInvestments
420455000 USD
CY2020Q4 us-gaap Short Term Investments
ShortTermInvestments
260169000 USD
CY2021Q1 us-gaap Long Term Investments
LongTermInvestments
2820000 USD
CY2020Q4 us-gaap Long Term Investments
LongTermInvestments
2861000 USD
CY2021Q1 mpwr Cash Cash Equivalents And Investments
CashCashEquivalentsAndInvestments
641643000 USD
CY2020Q4 mpwr Cash Cash Equivalents And Investments
CashCashEquivalentsAndInvestments
597974000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities Within One Year Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost
89085000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities Within One Year Fair Value
AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue
89289000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost
330053000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities After One Through Five Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue
331166000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost
2995000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value
AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue
2820000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities Single Maturity Date Amortized Cost Basis
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDateAmortizedCostBasis
422133000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Maturities Single Maturity Date
AvailableForSaleSecuritiesDebtMaturitiesSingleMaturityDate
423275000 USD
CY2021Q1 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
442757000 USD
CY2021Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax
1611000 USD
CY2021Q1 us-gaap Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax
AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax
469000 USD
CY2021Q1 us-gaap Available For Sale Securities Debt Securities
AvailableForSaleSecuritiesDebtSecurities
443899000 USD
CY2020Q4 us-gaap Available For Sale Debt Securities Amortized Cost Basis
AvailableForSaleDebtSecuritiesAmortizedCostBasis
295444000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
160362000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
294000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
2820000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
175000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
163182000 USD
CY2021Q1 us-gaap Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
469000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months
65142000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss
99000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger
2861000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss
DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss
159000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Unrealized Loss Position
DebtSecuritiesAvailableForSaleUnrealizedLossPosition
68003000 USD
CY2020Q4 us-gaap Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss
DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
258000 USD
CY2021Q1 mpwr Redemption Auction Rate Securities To Date
RedemptionAuctionRateSecuritiesToDate
40300000 USD
CY2021Q1 mpwr Percentage Of Auction Rate Securities Redeemedat Par Value
PercentageOfAuctionRateSecuritiesRedeemedatParValue
0.93 pure
CY2021Q1 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
3200000 USD
CY2020Q4 us-gaap Equity Securities Without Readily Determinable Fair Value Amount
EquitySecuritiesWithoutReadilyDeterminableFairValueAmount
3400000 USD
CY2021Q1 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
218368000 USD
CY2020Q4 us-gaap Cash And Cash Equivalents At Carrying Value
CashAndCashEquivalentsAtCarryingValue
334944000 USD
CY2021Q1 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
119000 USD
CY2020Q4 us-gaap Restricted Cash And Cash Equivalents
RestrictedCashAndCashEquivalents
127000 USD
CY2021Q1 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
218487000 USD
CY2020Q4 us-gaap Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents
CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents
335071000 USD
CY2021Q1 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
472151000 USD
CY2020Q4 us-gaap Assets Fair Value Disclosure
AssetsFairValueDisclosure
324289000 USD
CY2021Q1 us-gaap Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
48138000 USD
CY2020Q4 us-gaap Deferred Compensation Plan Assets
DeferredCompensationPlanAssets
46146000 USD
CY2021Q1 us-gaap Deferred Compensation Liability Current And Noncurrent
DeferredCompensationLiabilityCurrentAndNoncurrent
50233000 USD
CY2020Q4 us-gaap Deferred Compensation Liability Current And Noncurrent
DeferredCompensationLiabilityCurrentAndNoncurrent
48435000 USD
CY2021Q1 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
2282000 USD
CY2020Q1 us-gaap Interest Income Expense Nonoperating Net
InterestIncomeExpenseNonoperatingNet
2374000 USD
CY2021Q1 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
-813000 USD
CY2020Q1 us-gaap Accretion Amortization Of Discounts And Premiums Investments
AccretionAmortizationOfDiscountsAndPremiumsInvestments
-494000 USD
CY2021Q1 mpwr Gain Loss On Deferred Compensation Plan Investments
GainLossOnDeferredCompensationPlanInvestments
1177000 USD
CY2020Q1 mpwr Gain Loss On Deferred Compensation Plan Investments
GainLossOnDeferredCompensationPlanInvestments
-3750000 USD
CY2021Q1 us-gaap Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
15000 USD
CY2020Q1 us-gaap Foreign Currency Transaction Gain Loss Before Tax
ForeignCurrencyTransactionGainLossBeforeTax
3000 USD
CY2021Q1 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
-74000 USD
CY2020Q1 us-gaap Other Nonoperating Income Expense
OtherNonoperatingIncomeExpense
153000 USD
CY2021Q1 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
2587000 USD
CY2020Q1 us-gaap Nonoperating Income Expense
NonoperatingIncomeExpense
-1714000 USD
CY2021Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
3300000 USD
CY2021Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.067 pure
CY2020Q1 us-gaap Income Tax Expense Benefit
IncomeTaxExpenseBenefit
-6500000 USD
CY2020Q1 us-gaap Effective Income Tax Rate Continuing Operations
EffectiveIncomeTaxRateContinuingOperations
0.222 pure
CY2021Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.60
CY2020Q1 us-gaap Common Stock Dividends Per Share Declared
CommonStockDividendsPerShareDeclared
0.50
CY2021Q1 us-gaap Dividends Common Stock
DividendsCommonStock
27393000 USD
CY2020Q1 us-gaap Dividends Common Stock
DividendsCommonStock
22317000 USD
CY2021Q1 us-gaap Dividends Payable Current
DividendsPayableCurrent
27400000 USD
CY2020Q4 us-gaap Dividends Payable Current
DividendsPayableCurrent
22600000 USD
CY2021Q1 mpwr Accrued Dividend Equivalents
AccruedDividendEquivalents
12400000 USD
CY2020Q4 mpwr Accrued Dividend Equivalents
AccruedDividendEquivalents
11700000 USD

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