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Educational only — not tax, legal, or investment advice. Whether two funds are “substantially identical” depends on facts and circumstances; the IRS has not published a bright-line test for ETFs. Consult a qualified tax professional before you trade.

Swap finder › S&P 500 / US large cap

ESGU tax-loss harvesting alternatives

iShares ESG Aware MSCI USA ETF (BlackRock) tracks MSCI USA Extended ESG Focus Index. If you hold ESGU at a loss, these ETFs track a different index, which generally makes them less likely to be considered “substantially identical” — while still moving closely with ESGU during the 31-day wait.

Held fundIndex trackedIssuerExpense ratioAUMHoldingsCategory
ESGU
iShares ESG Aware MSCI USA ETF
MSCI USA Extended ESG Focus IndexBlackRock0.15%$18.22B272S&P 500 / US large cap

Sources: issuer fund page · public fund profile. Fund data as of 2026-10-16.

ESGU wash sale alternatives (different index)

ETFIndex trackedIssuerExpense ratioAUM1-yr correlationHoldings overlapNotes
VOO
Vanguard S&P 500 ETF
S&P 500Vanguard0.03%$1.06T0.99678.2%different indexhigh overlap
IWB
iShares Russell 1000 ETF
Russell 1000BlackRock0.15%$49.49B0.99675.5%different indexhigh overlap
SCHX
Schwab U.S. Large-Cap ETF
Dow Jones US Total Stock Market Large-CapCharles Schwab0.03%$75.28B0.996n/adifferent index
VV
Vanguard Morningstar Large-Cap ETF
Morningstar US Large Cap TR USDVanguard0.03%$55.29B0.99678.6%different indexhigh overlap
SPYM
State Street SPDR Portfolio S&P 500 ETF
S&P 500State Street0.02%$185.28B0.99678.7%different indexhigh overlap
SPY
State Street SPDR S&P 500 ETF
S&P 500State Street0.09%$821.83B0.99678.7%different indexhigh overlap
ITOT
iShares Core S&P Total U.S. Stock Market ETF
S&P TMIBlackRock0.03%$97.91B0.99574.4%different indexhigh overlap
VONE
Vanguard Russell 1000 ETF
Russell 1000Vanguard0.06%$9.18B0.99575.6%different indexhigh overlap

Sorted by 1-year correlation of daily total returns with ESGU (through 2026-10-16). Holdings overlap = sum of the smaller weight of each common stock, from issuer holdings files; “n/a” where the issuer does not offer a free download or for bond/international/commodity funds. Hover a value for its as-of dates.

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30-day wash-sale calendar for ESGU

The window is 30 calendar days before and after the sale (61 days total, IRC §1091(a)). Buying the replacement fund right away is the point of a swap; the dates above are about buying back the fund you sold, or anything substantially identical to it.

Before you swap