IEF vs ZROZ: Holdings Overlap
IEFiShares 7-10 Year Treasury Bond ETF
iShares · 15 holdings · $47.3B · as of 2026-05-31
ZROZPIMCO 25+ Year Zero Coupon U.S. Treasury Index Exchange-Traded Fund
PIMCO · 20 holdings · $1.3B · as of 2026-03-31
Holdings snapshots are 61 days apart (IEF: 2026-05-31, ZROZ: 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 IEF and ZROZ?
iShares 7-10 Year Treasury Bond ETF (IEF, by iShares) holds 15 positions; PIMCO 25+ Year Zero Coupon U.S. Treasury Index Exchange-Traded Fund (ZROZ, by PIMCO) holds 20. 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
- 0IEF holds 15 · ZROZ holds 20
- Weight in Shared Holdings
- IEF 0%·ZROZ 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 IEF
15 of 15 positions (98.2% of the fund) are not held by ZROZ.
- U.S. Treasury Notes9.54%
- U.S. Treasury Notes8.78%
- U.S. Treasury Notes8.75%
- U.S. Treasury Notes8.73%
- U.S. Treasury Notes8.71%
- U.S. Treasury Notes8.63%
Only in ZROZ
20 of 20 positions (99.9% of the fund) are not held by IEF.
- STRIP PRINC 02/53 0.000005.89%
- STRIP PRINC 08/52 0.000005.88%
- STRIP PRINC 11/52 0.000005.80%
- STRIP PRINC 02/51 0.000005.77%
- STRIP PRINC 02/52 0.000005.48%
- STRIP PRINC 02/55 0.000005.39%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IEF | -0.2% | -0.9% | +1.3% | +3.1% | -1.6% | +0.5% | 3.95% |
| ZROZ | -3.6% | -5.8% | -5.8% | -6.0% | -13.9% | -5.2% | 5.51% |
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 IEF vs ZROZ →
Shared Holdings(0)
These two funds have no holdings in common.
Frequently Asked Questions
How much do IEF and ZROZ overlap?
IEF and ZROZ overlap by 0.0% of portfolio weight. They share 0 holdings (IEF holds 15 positions and ZROZ holds 20), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IEF and ZROZ?
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 IEF own that ZROZ doesn't?
15 positions (98.2% of IEF) are unique to IEF, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 20 positions (99.9% of ZROZ) are unique to ZROZ.