ISTB vs IVV: Holdings Overlap
ISTBiShares Core 1-5 Year USD Bond ETF
iShares · 7059 holdings · $5.1B · as of 2026-04-30
iShares · 503 holdings · $901.0B · as of 2026-03-31
Holdings snapshots are 30 days apart (ISTB: 2026-04-30, IVV: 2026-03-31). 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 ISTB and IVV?
iShares Core 1-5 Year USD Bond ETF (ISTB, by iShares) holds 7059 positions; iShares Core S&P 500 ETF (IVV, by iShares) holds 503. 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
- 0ISTB holds 7059 · IVV holds 503
- Weight in Shared Holdings
- ISTB 0%·IVV 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 ISTB
7059 of 7059 positions (98.6% of the fund) are not held by IVV. Showing the top 30 by weight.
- U.S. Treasury Notes0.99%
- U.S. Treasury Notes0.98%
- U.S. Treasury Notes0.96%
- U.S. Treasury Notes0.91%
- U.S. Treasury Notes0.89%
- U.S. Treasury Notes0.86%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ISTB | +0.3% | +1.0% | +3.0% | +5.0% | +1.9% | +2.3% | 4.27% |
| IVV | +3.4% | +14.0% | +23.7% | +21.3% | +13.4% | +15.4% | 1.05% |
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 ISTB vs IVV →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do ISTB and IVV overlap?
ISTB and IVV overlap by 0.0% of portfolio weight. They share 0 holdings (ISTB holds 7059 positions and IVV holds 503), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ISTB and IVV?
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 ISTB own that IVV doesn't?
7059 positions (98.6% of ISTB) are unique to ISTB, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 503 positions (99.8% of IVV) are unique to IVV.