Tax-Loss Harvest Finder
Sell the loss, keep the exposure. For any fund, ranked stand-ins that track the same market — scored on a year of price correlation, holdings overlap, and fee — with a flag when two funds follow the same index and a swap could look substantially identical.
Correlation computed on ~250 shared sessions per pair · not tax advice — the flag is a heuristic, your compliance desk has the final word
| Substitute | Correlation | Book overlap | Fee vs ISCB | Assets | Wash-sale read | |
|---|---|---|---|---|---|---|
| SPMD State Street SPDR Portfolio S&P 400 Mid Cap ETF | 0.951 | 27% | -1bp | $18.4B | different index | Compare |
| VB Vanguard Small Cap Index Fund | 0.979 | 21% | +1bp | $58.9B | different index | Compare |
| SPSM State Street SPDR Portfolio S&P 600 Small Cap ETF | 0.960 | 2% | -1bp | $16B | different index | Compare |
| VBR Vanguard Small Cap Value Index Fund | 0.939 | 24% | +3bp | $30.1B | different index | Compare |
| IJR iShares Core S&P Small-Cap ETF | 0.964 | 3% | +2bp | $104.3B | different index | Compare |
| SCHM Schwab U.S. Mid Cap ETF | 0.926 | — | same | $11.5B | different index | Compare |
RANKED BY CORRELATION, FEE, AND OVERLAP · “SAME INDEX” PAIRS ARE FLAGGED BECAUSE THE IRS HAS NEVER DEFINED “SUBSTANTIALLY IDENTICAL” — MOST DESKS TREAT SAME-INDEX SWAPS AS OFF-LIMITS AND DIFFERENT-INDEX SWAPS AS DEFENSIBLE
Cached coverage for 2,093 funds. Latest price/flow record dates: 2024-08-23 to 2026-10-26 (1,065 funds with dated records). Fund details retrieved: 2026-09-25 to 2026-10-28. Data dates vary by fund; these are not live quotes. Flow totals include available records only; missing coverage is not evidence of zero flow.