Vanguard Total Bond Market ETF (BND) and State Street® SPDR® S&P 500® ETF Trust (SPY) have little to no holdings in common — their portfolios barely overlap.
Weight overlap
0%
Shared portfolio weight
Shared holdings
0
Securities in both funds
Funds
BND · SPY
Compared side by side
Interactive charts, sector exposure, combined allocation, and the full overlap heatmap.
How each fund's equity holdings break down by sector, side by side — the clearest read on where the two funds tilt differently.
| Sector | In BND | In SPY |
|---|---|---|
Technology | 0.0% | 38.4% |
Financial Services | 0.0% | 12.1% |
Communication Services | 0.0% | 9.7% |
Consumer Cyclical | 0.0% | 9.4% |
Healthcare | 0.0% | 9.0% |
Industrials | 0.0% | 8.2% |
Consumer Defensive | 0.0% | 4.5% |
Energy | 0.0% | 3.2% |
Utilities | 0.0% | 2.1% |
Real Estate | 0.0% | 1.8% |
Basic Materials | 0.0% | 1.6% |
Weights are of the equity holdings we can classify (BND 0%, SPY 100% of each fund). Foreign, bond and cash holdings that can’t be classified are excluded.
BND
SPY
Two ETFs overlap when they hold the same underlying securities. Holding both funds can leave you more concentrated than you think — you may own the same large companies twice, at a combined weight neither fund shows on its own. The weight overlap above is the share of portfolio weight the two funds hold in common: for every security both own, it counts only the smaller of the two weights (the slice you genuinely double up on). 0% means completely different books; 100% means effectively identical funds.