ITA vs IWO: Holdings Overlap
ITAiShares U.S. Aerospace & Defense ETF
iShares · 44 holdings · $14.8B · as of 2026-03-31
IWOiShares Russell 2000 Growth ETF
iShares · 1101 holdings · $14.8B · as of 2026-03-31
How similar are ITA and IWO?
iShares U.S. Aerospace & Defense ETF (ITA, by iShares) holds 44 positions; iShares Russell 2000 Growth ETF (IWO, by iShares) holds 1101. They have 15 holdings in common, and by portfolio weight the two funds are 2.9% identical. In practical terms the pair is essentially distinct, holding almost none of the same securities.
- Overlap by Weight
- 2.9%Sum of the smaller weight of each shared holding
- Shared Holdings
- 15ITA holds 44 · IWO holds 1101
- Weight in Shared Holdings
- ITA 5%·IWO 3%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 ITA
29 of 44 positions (95.4% of the fund) are not held by IWO.
Only in IWO
1086 of 1101 positions (96.9% of the fund) are not held by ITA. Showing the top 30 by weight.
Sector Breakdown
| Sector | ITA | IWO |
|---|---|---|
| Industrials | 99.8% | 23.7% |
| Health Care | 0.0% | 23.1% |
| Information Technology | 0.0% | 19.0% |
| Financials | 0.0% | 8.6% |
| Consumer Discretionary | 0.1% | 7.3% |
| Other Sectors | 0.0% | 14.1% |
| Unclassified | 0.0% | 4.0% |
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. “Unclassified” is weight we could not classify (0% of ITA, 4% of IWO).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ITA | +2.3% | +16.9% | +28.0% | +29.8% | +19.2% | +15.5% | 0.42% |
| IWO | +1.2% | +21.0% | +34.7% | +17.5% | +5.9% | +11.0% | 0.42% |
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 ITA vs IWO →
Shared Holdings(15)
The top 10 shared positions account for 96% of the overlap, led by KTOS, MOG-A and AVAV.
 KTOSKratos Defense & Security Solutions, Inc. COM NEW | 1.10% | 0.86% | 0.86% |
|---|---|---|---|
 MOG-AMoog, Inc., Class A | 0.70% | 0.55% | 0.55% |
 AVAVAeroVironment, Inc. COM | 0.49% | 0.46% | 0.46% |
 VSECVSE Corp. COM | 0.45% | 0.29% | 0.29% |
 ACHRArcher Aviation, Inc., Class A | 0.27% | 0.21% | 0.21% |
 ATROAstronics Corp. COM | 0.18% | 0.13% | 0.13% |
 RCATRed Cat Holdings Inc. COM | 0.12% | 0.09% | 0.09% |
 AIRAAR Corp. COM | 0.36% | 0.07% | 0.07% |
 MRCYMercury Systems Inc COM | 0.32% | 0.06% | 0.06% |
 CDRECadre Holdings Inc. COM | 0.07% | 0.06% | 0.06% |
 RDWRedwire Corporation COM | 0.06% | 0.06% | 0.06% |
 BETABeta Technologies Inc. COM SHS CL A | 0.04% | 0.02% | 0.02% |
 RGRSturm Ruger & Co Inc. COM | 0.05% | 0.01% | 0.01% |
 VVXV2X Inc COM | 0.12% | 0.01% | 0.01% |
 LUNRIntuitive Machines Inc CLASS A COM | 0.18% | 0.01% | 0.01% |
Frequently Asked Questions
How much do ITA and IWO overlap?
ITA and IWO overlap by 2.9% of portfolio weight. They share 15 holdings (ITA holds 44 positions and IWO holds 1101), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ITA and IWO?
The two portfolios are 2.9% identical by weight. Owning both is genuine diversification: the funds hold almost none of the same securities.
What are the biggest shared holdings of ITA and IWO?
The largest positions held by both funds are KTOS, MOG-A, AVAV, VSEC and ACHR. Together the top 10 shared positions account for 96% of the total overlap.
What does ITA own that IWO doesn't?
29 positions (95.4% of ITA) are unique to ITA, led by GE, RTX and BA. In the other direction, 1086 positions (96.9% of IWO) are unique to IWO.