Windham Capital Management, LLC

Quarterly 13F snapshot: US-listed longs only, no performance figures — 13F data cannot support them.

Reported portfolio value by quarter (46 quarters reported)

$1.44B —

Q2 13 Q4 15 Q2 18 Q4 20 Q2 23 Q3 24

$1.04B in Q2 2013 → — now. Hover for any quarter.

Holdings

As reported for the quarter ended September 30, 2024. Activity is the change in share count since the prior quarter's filing.

Holding	% of portfolio	Activity	Shares	Value
N None	NaN%	New	0	—

What changed each quarter, from the filings' own share counts. Largest moves first; most recent 8 quarters.

quarter ended September 30, 2024 · filed October 11, 2024

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds Total Stk M	Exited	−139,496	−$37.3M	—
VI Vanguard Index Fds Value ETF	Exited	−66,581	−$10.7M	—
VI Vanguard Index Fds Growth ETF	Exited	−23,775	−$9.11M	—
IT Ishares Tr Shrt Nat Mun ETF	Exited	−83,624	−$8.74M	—
IT Ishares Tr S&P 500 Index	Exited	−9,900	−$5.42M	—
IT Ishares Tr Russell 2000	Exited	−19,366	−$3.93M	—
IT Ishares Tr Tips Bd ETF	Exited	−35,720	−$3.81M	—
GS Goldman Sachs Access Treasury	Exited	−36,843	−$3.69M	—
XU Xtrackers Usd High Yield Corpo	Exited	−96,514	−$3.42M	—
VI Vanguard Intl Equity Index Fds	Exited	−43,145	−$2.88M	—

Showing the 10 largest of 45 changes.

quarter ended June 30, 2024 · filed August 14, 2024

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds Total Stk M	Trimmed	−1,360	−$364K	29.2%
VI Vanguard Index Fds Growth ETF	Trimmed	−587	−$225K	7.1%
IT Ishares Tr Shrt Nat Mun ETF	Trimmed	−1,201	−$126K	6.8%
VI Vanguard Index Fds Value ETF	Trimmed	−515	−$82.6K	8.4%
IT Ishares Tr Russell 2000	Trimmed	−218	−$44.2K	3.1%
VM Vanguard Mun Bd Fd Inc Tax Exe	Trimmed	−691	−$34.6K	1.6%
VI Vanguard Intl Equity Index Fds	Trimmed	−334	−$22.3K	2.3%
GS Goldman Sachs Access Treasury	Added	+191	+$19.1K	2.9%
SD SPDR Db Intl Government Inflat	Added	+391	+$15.1K	1.9%
SS SPDR Series Trust Blomberg Brc	Added	+245	+$7.56K	0.3%

Showing the 10 largest of 11 changes.

quarter ended March 31, 2024 · filed May 13, 2024

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds Total Stk M	Trimmed	−76,515	−$19.9M	28.8%
IT Ishares Tr Shrt Nat Mun ETF	Trimmed	−180,016	−$18.9M	7.0%
SS SPDR Series Trust Portfolio Sh	Trimmed	−376,589	−$11.2M	0.8%
VT Vanguard Tax Managed Intl Fd F	Trimmed	−179,410	−$9M	2.1%
SS SPDR S&P 500 ETF Tr	Exited	−15,406	−$7.32M	—
IQ Invesco Qqq Tr	Exited	−15,357	−$6.29M	—
VI Vanguard Intl Equity Index Fd	Trimmed	−52,002	−$6.08M	0.4%
VM Vanguard Malvern Fds Strm Infp	Trimmed	−120,797	−$5.78M	0.3%
VI Vanguard Index Fds	Exited	−24,615	−$4.43M	—
IT Ishares Tr	Exited	−56,494	−$4.41M	—

Showing the 10 largest of 75 changes.

quarter ended December 31, 2023 · filed January 31, 2024

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds	Added	+4,392	+$1.37M	3.0%
VI Vanguard Index Fds	Added	+5,239	+$783K	4.1%
IE Invesco Exch Traded Fd Tr Ii	Exited	−5,157	−$519K	—
IT Ishares Tr	Exited	−11,636	−$504K	—
IT Ishares Tr	Added	+4,878	+$482K	0.6%
SM Schwab Mutual Fund	Exited	−424,377	−$424K	—
VW Vanguard World Fds	Added	+1,315	+$330K	1.5%
IT Ishares Tr	Added	+1,487	+$298K	1.4%
SS SPDR Ser Tr	Trimmed	−6,709	−$281K	1.0%
VW Vanguard World Fds	New	+884	+$269K	0.1%

Showing the 10 largest of 77 changes.

quarter ended September 30, 2023 · filed November 06, 2023

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds	Trimmed	−4,091	−$869K	18.7%
SS SPDR Ser Tr	Trimmed	−20,087	−$782K	1.1%
IE Invesco Exch Traded Fd Tr Ii	New	+5,157	+$519K	0.2%
IT Ishares Tr	Trimmed	−4,814	−$495K	10.9%
SM Schwab Mutual Fund	New	+424,377	+$424K	0.2%
DE Dbx ETF Tr	Trimmed	−9,614	−$326K	1.3%
LS Life Storage Inc Com	Exited	−2,400	−$319K	—
VW Vanguard World Fds	Exited	−1,074	−$304K	—
Extra Space Storage Inc	New	+2,175	+$264K	0.1%
Monarch Casino & Resort Inc	Exited	−3,000	−$211K	—

Showing the 10 largest of 63 changes.

quarter ended June 30, 2023 · filed August 02, 2023

Company	Action	Shares changed	Value of change	% of portfolio
IT Ishares Tr	Added	+17,551	+$1.83M	10.7%
SS SPDR Ser Tr	Trimmed	−28,992	−$1.21M	1.4%
VI Vanguard Intl Equity Index F	Added	+21,621	+$880K	0.5%
GS Goldman Sachs ETF Tr	Added	+8,766	+$877K	1.5%
DE Dbx ETF Tr	Trimmed	−23,897	−$824K	1.4%
VI Vanguard Index Fds	Trimmed	−3,138	−$691K	18.9%
IT Ishares Tr	Trimmed	−6,482	−$667K	0.4%
SS SPDR Ser Tr	Trimmed	−8,822	−$617K	0.1%
IT Ishares Tr	New	+13,024	+$611K	0.2%
VI Vanguard Index Fds	Added	+3,421	+$486K	3.8%

Showing the 10 largest of 32 changes.

quarter ended March 31, 2023 · filed May 01, 2023

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds	Trimmed	−46,408	−$9.47M	18.3%
IT Ishares Tr	Trimmed	−76,512	−$8.01M	10.4%
SS SPDR Ser Tr	Trimmed	−109,465	−$4.73M	2.0%
DE Dbx ETF Tr	Trimmed	−91,946	−$3.2M	1.8%
VI Vanguard Index Fds	Trimmed	−12,347	−$3.08M	2.3%
GS Goldman Sachs ETF Tr	New	+30,278	+$3.03M	1.2%
IT Ishares Tr	Added	+27,353	+$3.02M	1.6%
VI Vanguard Index Fds	Trimmed	−18,333	−$2.53M	3.6%
IT Ishares Tr	New	+31,799	+$2.31M	0.9%
IT Ishares Tr	Trimmed	−21,440	−$2.12M	0.1%

Showing the 10 largest of 69 changes.

quarter ended December 31, 2022 · filed February 09, 2023

Company	Action	Shares changed	Value of change	% of portfolio
VI Vanguard Index Fds	Added	+53,449	+$10.2M	20.0%
SA Ssga Active ETF Tr	Trimmed	−231,268	−$9.46M	0.4%
SS SPDR Ser Tr	Added	+215,339	+$8.87M	3.6%
VT Vanguard Tax-managed Intl Fd	Trimmed	−207,416	−$8.71M	3.7%
SS SPDR Ser Tr	Trimmed	−217,728	−$6.62M	0.2%
DE Dbx ETF Tr	Added	+170,686	+$5.75M	2.9%
VI Vanguard Intl Equity Index F	Trimmed	−103,709	−$5.75M	1.6%
IT Ishares Tr	Trimmed	−42,097	−$4.39M	13.1%
VM Vanguard Malvern Fds	Trimmed	−90,153	−$4.21M	2.3%
IE Invesco Exch Traded Fd Tr Ii	Trimmed	−169,229	−$3.47M	0.2%

Showing the 10 largest of 43 changes.

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