SPTS vs SPY: Holdings Overlap
SPTSState Street® SPDR® Portfolio Short Term Treasury ETF
State Street (SPDR) · 96 holdings · $6.1B · as of 2026-08-06
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
How similar are SPTS and SPY?
State Street® SPDR® Portfolio Short Term Treasury ETF (SPTS, by State Street (SPDR)) holds 96 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
- 0SPTS holds 96 · SPY holds 504
- Weight in Shared Holdings
- SPTS 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 SPTS
96 of 96 positions (99.2% of the fund) are not held by SPY. Showing the top 30 by weight.
- US TREASURY N/B 01/28 3.51.85%
- US TREASURY N/B 04/29 4.6251.42%
- US TREASURY N/B 12/27 3.3751.37%
- US TREASURY N/B 11/27 3.3751.37%
- US TREASURY N/B 02/28 3.3751.36%
- US TREASURY N/B 05/29 4.51.36%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| SPTS | +0.3% | +1.0% | +2.9% | +4.3% | +1.9% | +1.7% | 3.87% |
| 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 SPTS vs SPY →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do SPTS and SPY overlap?
SPTS and SPY overlap by 0.0% of portfolio weight. They share 0 holdings (SPTS holds 96 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SPTS 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 SPTS own that SPY doesn't?
96 positions (99.2% of SPTS) are unique to SPTS, led by US TREASURY N/B 01/28 3.5, US TREASURY N/B 04/29 4.625 and US TREASURY N/B 12/27 3.375. In the other direction, 504 positions (99.9% of SPY) are unique to SPY.