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 GBF — iShares Government/Credit Bond ETF
| Substitute | Correlation | Book overlap | Fee vs GBF | Assets | Wash-sale read | |
|---|---|---|---|---|---|---|
| AGG iShares Core U.S. Aggregate Bond ETF | 0.984 | — | -17bp | $127.8B | different index | Compare |
| GOVT iShares U.S. Treasury Bond ETF | 0.978 | — | -15bp | $43.8B | different index | Compare |
| BND Vanguard Total Bond Market Index Fund | 0.978 | — | -17bp | $112.8B | different index | Compare |
| IEF iShares 7-10 Year Treasury Bond ETF | 0.971 | — | -5bp | $42.8B | different index | Compare |
| QLTA iShares Aaa - A Rated Corporate Bond ETF | 0.962 | — | -5bp | $1.6B | different index | Compare |
| USIG iShares Broad USD Investment Grade Corporate Bond ETF | 0.960 | — | -16bp | $14.2B | 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