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
Stand-ins for MUB — iShares National Muni Bond ETF
| Substitute | Correlation | Book overlap | Fee vs MUB | Assets | Wash-sale read | |
|---|---|---|---|---|---|---|
| CMF iShares California Muni Bond ETF | 0.940 | — | +3bp | $4.6B | different index | Compare |
| AGG iShares Core U.S. Aggregate Bond ETF | 0.803 | — | -2bp | $127.8B | different index | Compare |
| NYF iShares New York Muni Bond ETF | 0.942 | — | +20bp | $1.4B | 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