How much do your ETFs overlap?
Overlap is the share of two funds' money that lands in the same companies. As of July 29, 2026. Computed across all holdings — not the top 10.
35 of 513,591 fund pairs we compared are more than 99% identical.
- 1,041 funds we track
- 513,591 possible pairs
- 384 pairs more than 90% identical
- 35 pairs more than 99% identical
Effectively the same fund
Both directions above ~95%. Owning both is not diversification — it is two expense ratios for one basket.
- IVV vs VOO — IVV in VOO 100%, VOO in IVV 100%, overlap 95%
- IVV vs SPY — IVV in SPY 100%, SPY in IVV 100%, overlap 100%
- SPY vs VOO — SPY in VOO 100%, VOO in SPY 100%, overlap 95%
- ITOT vs VTI — ITOT in VTI 99%, VTI in ITOT 100%, overlap 94%
- QQQ vs QQQM — QQQ in QQQM 100%, QQQM in QQQ 100%, overlap 100%
- IVV vs VV — IVV in VV 97%, VV in IVV 98%, overlap 93%
One sits inside the other
A wide gap between the two directions. The smaller fund is already contained in the larger — adding it is a tilt, not a new exposure.
- IVV vs QQQ — IVV in QQQ 53%, QQQ in IVV 95%, overlap 53%
- QQQ vs SPY — QQQ in SPY 95%, SPY in QQQ 53%, overlap 53%
- QQQ vs VOO — QQQ in VOO 95%, VOO in QQQ 55%, overlap 55%
- QQQ vs VTI — QQQ in VTI 96%, VTI in QQQ 48%, overlap 48%
- IVV vs VUG — IVV in VUG 56%, VUG in IVV 97%, overlap 56%
- SPY vs VUG — SPY in VUG 56%, VUG in SPY 97%, overlap 56%
Less alike than they look
Same category, genuinely different holdings. Two funds in the same category are not automatically the same trade.
- QQQ vs VGT — QQQ in VGT 56%, VGT in QQQ 77%, overlap 54%
- IJH vs VO — IJH in VO 1%, VO in IJH 0%, overlap 0%
- IJR vs VB — IJR in VB 85%, VB in IJR 19%, overlap 18%
- QQQ vs XLK — QQQ in XLK 55%, XLK in QQQ 85%, overlap 55%
- SCHD vs VIG — SCHD in VIG 56%, VIG in SCHD 14%, overlap 14%
- IJR vs IWM — IJR in IWM 82%, IWM in IJR 48%, overlap 45%