IGSB vs SPY: Holdings Overlap
IGSBiShares 1-5 Year Investment Grade Corporate Bond ETF
iShares · 4605 holdings · $23.2B · 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 (IGSB: 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 IGSB and SPY?
iShares 1-5 Year Investment Grade Corporate Bond ETF (IGSB, by iShares) holds 4605 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
- 0IGSB holds 4605 · SPY holds 504
- Weight in Shared Holdings
- IGSB 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 IGSB
4605 of 4605 positions (99.2% of the fund) are not held by SPY. Showing the top 30 by weight.
- Eagle Funding Luxco Sarl0.31%
- T-Mobile USA Inc0.18%
- Bank of America Corp0.16%
- AbbVie Inc0.14%
- Amazon.com Inc0.13%
- CVS Health Corp0.13%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IGSB | +0.3% | +1.2% | +3.5% | +5.6% | +2.5% | +2.7% | 4.61% |
| 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 IGSB vs SPY →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do IGSB and SPY overlap?
IGSB and SPY overlap by 0.0% of portfolio weight. They share 0 holdings (IGSB holds 4605 positions and SPY holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IGSB 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 IGSB own that SPY doesn't?
4605 positions (99.2% of IGSB) are unique to IGSB, led by Eagle Funding Luxco Sarl, T-Mobile USA Inc and Bank of America Corp. In the other direction, 504 positions (99.9% of SPY) are unique to SPY.