SHY vs SPY: Holdings Overlap
SHYiShares 1-3 Year Treasury Bond ETF
iShares · 89 holdings · $25.2B · as of 2026-05-31
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
Holdings snapshots are 67 days apart (SHY: 2026-05-31, SPY: 2026-08-06). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are SHY and SPY?
iShares 1-3 Year Treasury Bond ETF (SHY, by iShares) holds 89 positions; State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504. They have 0 holdings in common, and by portfolio weight the two funds are 0.0% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 0SHY holds 89 · SPY holds 504
- Weight in Shared Holdings
- SHY 0%·SPY 0%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in SHY
89 of 89 positions (99.0% of the fund) are not held by SPY. Showing the top 30 by weight.
- U.S. Treasury Notes1.96%
- U.S. Treasury Notes1.84%
- U.S. Treasury Notes1.71%
- U.S. Treasury Notes1.60%
- U.S. Treasury Notes1.60%
- U.S. Treasury Notes1.52%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| SHY | +0.4% | +1.0% | +2.8% | +4.2% | +1.8% | +1.7% | 3.63% |
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in SHY vs SPY →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do SHY and SPY overlap?
SHY and SPY overlap by 0.0% of portfolio weight. They share 0 holdings (SHY holds 89 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SHY and SPY?
The two portfolios are 0.0% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What does SHY own that SPY doesn't?
89 positions (99.0% of SHY) are unique to SHY, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 504 positions (99.9% of SPY) are unique to SPY.