AIRR vs IDU: Holdings Overlap
AIRRFirst Trust RBA American Industrial Renaissance ETF
First Trust · 52 holdings · $10.7B · as of 2026-03-31
iShares · 44 holdings · $1.5B · as of 2026-04-30
Holdings snapshots are 30 days apart (AIRR: 2026-03-31, IDU: 2026-04-30). 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 AIRR and IDU?
First Trust RBA American Industrial Renaissance ETF (AIRR, by First Trust) holds 52 positions; iShares U.S. Utilities ETF (IDU, by iShares) holds 44. They have 1 holdings in common, and by portfolio weight the two funds are 0.9% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 0.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 1AIRR holds 52 · IDU holds 44
- Weight in Shared Holdings
- AIRR 2%·IDU 1%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 AIRR
51 of 52 positions (97.4% of the fund) are not held by IDU. Showing the top 30 by weight.
Only in IDU
43 of 44 positions (98.9% of the fund) are not held by AIRR. Showing the top 30 by weight.
Sector Breakdown
| Sector | AIRR | IDU |
|---|---|---|
| Industrials | 91.9% | 8.6% |
| Utilities | 0.0% | 91.2% |
| Financials | 8.0% | 0.0% |
| Other Sectors | 0.0% | 0.0% |
Share of each fund's portfolio weight by GICS-style sector, compiled from issuer fund data and our own classification of the holdings, not the issuers' published sector charts.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| AIRR | +0.6% | +25.7% | +39.9% | +32.0% | +24.5% | +20.5% | 0.09% |
| IDU | -4.3% | +3.5% | +2.8% | +14.4% | +8.5% | +8.6% | 2.27% |
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 AIRR vs IDU →
Shared Holdings(1)
 CLHClean Harbors, Inc. COM | 2.46% | 0.95% | 0.95% |
|---|
Frequently Asked Questions
How much do AIRR and IDU overlap?
AIRR and IDU overlap by 0.9% of portfolio weight. They share 1 holdings (AIRR holds 52 positions and IDU holds 44), based on each fund's latest SEC-reported holdings.
Is it redundant to own both AIRR and IDU?
The two portfolios are 0.9% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of AIRR and IDU?
The largest positions held by both funds are CLH. Together the top 1 shared positions account for 100% of the total overlap.
What does AIRR own that IDU doesn't?
51 positions (97.4% of AIRR) are unique to AIRR, led by AGX, MTZ and FIX. In the other direction, 43 positions (98.9% of IDU) are unique to IDU.