SPY vs UCON: Holdings Overlap
SPYState Street® SPDR® S&P 500® ETF Trust
State Street (SPDR) · 504 holdings · $812.0B · as of 2026-08-06
UCONFirst Trust Smith Unconstrained Bond ETF
First Trust · 504 holdings · $3.3B · as of 2026-05-31
Holdings snapshots are 67 days apart (SPY: 2026-08-06, UCON: 2026-05-31). 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 SPY and UCON?
State Street® SPDR® S&P 500® ETF Trust (SPY, by State Street (SPDR)) holds 504 positions; First Trust Smith Unconstrained Bond ETF (UCON, by First Trust) 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
- 0SPY holds 504 · UCON holds 504
- Weight in Shared Holdings
- SPY 0%·UCON 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 SPY
504 of 504 positions (99.9% of the fund) are not held by UCON. Showing the top 30 by weight.
Only in UCON
504 of 504 positions (98.6% of the fund) are not held by SPY. Showing the top 30 by weight.
- U.S. Treasury Notes/Bonds2.33%
- U.S. Treasury Bonds2.13%
- U.S. Treasury Bonds2.12%
- U.S. Treasury Notes1.69%
- U.S. Treasury Notes1.18%
- U.S. Treasury Notes/Bonds1.04%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| SPY | +3.4% | +14.0% | +23.7% | +21.2% | +13.3% | +15.3% | 0.97% |
| UCON | -0.1% | +0.7% | +3.7% | +5.5% | +2.7% | — | 4.72% |
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 SPY vs UCON →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do SPY and UCON overlap?
SPY and UCON overlap by 0.0% of portfolio weight. They share 0 holdings (SPY holds 504 positions and UCON holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SPY and UCON?
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 SPY own that UCON doesn't?
504 positions (99.9% of SPY) are unique to SPY, led by NVDA, AAPL and MSFT. In the other direction, 504 positions (98.6% of UCON) are unique to UCON.