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Super Investors Fidelity Series Treasury Bill Index Fund

Fidelity Series Treasury Bill Index Fund

Fidelity Hereford Street Trust · net assets $2.13B · 18 holdings as of July 31, 2026. Monthly N-PORT disclosure: the full book, not just equities.

Asset mix

DBT: 99.7% · STIV: 0.3%

Financial position

Total assets
$2.13B
Total liabilities
$7.34M
Net assets
$2.13B
Assets attributable to miscellaneous securities
$0
Assets invested in controlled foreign corporations
$0
Borrowings payable within one year
$0
Payable to controlled companies within one year
$0
Payable to other affiliates within one year
$0
Other liabilities payable within one year
$0
Borrowings payable after one year
$0
Payable to controlled companies after one year
$0
Payable to other affiliates after one year
$0
Other liabilities payable after one year
$0
Payables for delayed-delivery investments
$0
Payables for standby commitments
$0
Liquidation preference of outstanding preferred stock
$0
Cash not reported in Parts C or D
$7.6K

Monthly flows and gains

Month 1 Month 2 Month 3
Sales $91.6M $220M $55.6M
Reinvestment $5.86M $6.33M $6.7M
Redemptions $16.6M $21.6M $178M
Net realized gain (non-derivative) $-64.9K $-77.4K $-96.5K
Net unrealized appreciation (non-derivative) $-34K $-423K $512K

The three months of the reporting period, as filed; month 3 ends July 31, 2026.

Credit spread risk (change in value per 1bp spread move)

Tenor Investment grade Non-investment grade
3 months $50.1K $2.22K
1 year $3.88K $0
5 years $13.5K $555
10 years $0 $0
30 years $0 $0

Filing details

Registrant
Fidelity Hereford Street Trust
Registrant CIK
917286
Registrant LEI
549300KQI5JTFSYJTM18
Series
Fidelity Series Treasury Bill Index Fund
Series ID
S000062807
Series LEI
5493000RGG57MG2DSB62
SEC file number
811-07139
Address
245 Summer Street, Boston, US-MA, 02210, US
Phone
1-800-FIDELITY
Form
NPORT-P
Filed
September 23, 2026
Report period ends
April 30, 2027
Report month ends
July 31, 2026
Accession number
000003540226006283
Holding Value % of net assets
Ust Bills DBT $183M 8.63%
Ust Bills DBT $178M 8.38%
Ust Bills DBT $177M 8.32%
Ust Bills DBT $165M 7.77%
Ust Bills DBT $116M 5.47%
Ust Bills DBT $116M 5.45%
Ust Bills DBT $116M 5.45%
Ust Bills DBT $115M 5.43%
Ust Bills DBT $115M 5.42%
Ust Bills DBT $115M 5.42%
Ust Bills DBT $114M 5.35%
Ust Bills DBT $112M 5.27%
Ust Bills DBT $110M 5.20%
Ust Bills DBT $104M 4.89%
Ust Bills DBT $104M 4.88%
Ust Bills DBT $97.5M 4.59%
Ust Bills DBT $88.7M 4.17%
Fidelity Revere Street Trust STIV $5.37M 0.25%

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