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 FDMO | Assets | Wash-sale read | |
|---|---|---|---|---|---|---|
| MTUM iShares MSCI USA Momentum Factor ETF | 0.932 | — | same | $18.9B | different index | Compare |
| VFMO Vanguard U.S. Momentum Factor ETF | 0.927 | — | -2bp | $646M | different index | Compare |
| VOOG Vanguard S&P 500 Growth ETF | 0.919 | — | -5bp | $12.3B | different index | Compare |
| SPMO Invesco S&P 500 Momentum ETF | 0.919 | — | -2bp | $22.2B | different index | Compare |
| SPYG State Street SPDR Portfolio S&P 500 Growth ETF | 0.918 | — | -11bp | $57.9B | different index | Compare |
| VBK Vanguard Small Cap Growth Index Fund | 0.872 | — | -8bp | $17.7B | 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 2026-10-22 (1,065 funds with dated records). Fund details retrieved: 2026-09-25 to 2026-10-23. Data dates vary by fund; these are not live quotes. Flow totals include available records only; missing coverage is not evidence of zero flow.