IAT vs IYY: holdings overlap, shared companies and scores
As of October 9, 2026, IAT and IYY overlap 1.0% by weight. iShares U.S. Regional Banks ETF (IAT): Small and mid-sized regional banks. iShares Dow Jones U.S. ETF (IYY): U.S. large- and mid-cap stocks.
Updated October 9, 2026
Where IAT and IYY trade against their own history
IAT trades at 11.6 times earnings, against its own median of 12.1, and is cheaper than 68% of its own last 9 years.
IYY trades at 24.5 times earnings, against its own median of 22.4, and is more expensive than 63% of its own last 9 years.
What moved IAT and IYY this week
IAT fell 1.1% in the week to October 9, 2026. The holdings that moved it most were PNC Financial Services (−0.8%), US Bancorp (−0.7%) and Truist Financial (−0.7%).
IYY rose 1.1% in the week to October 9, 2026. The holdings that moved it most were Microsoft (+3.4%), Amazon.com (+4.3%) and Alphabet (+2.4%); Nvidia (−2.0%) pushed the other way.
What do IAT and IYY each hold?
69% of IAT is its ten largest holdings.
What's inside IYY: Tech 45%, Magnificent 7 33%.
37% of IYY is its ten largest holdings.
How much do IAT and IYY overlap? 1.0% by weight
As of October 9, 2026, IAT and IYY overlap 1.0% by weight.
100% of IAT is already inside IYY.
1% of IYY is already inside IAT.
IAT holds 33 companies and IYY holds 941; 33 are in both.
Computed by ETF Copilot from both funds' holdings rather than quoted from a data provider, and rebuilt nightly.
How does ETF Copilot score IAT and IYY? 3.2 and 6.7 out of 10
As of October 9, 2026, ETF Copilot scores IAT 3.2 out of 10 and IYY 6.7 out of 10.
They differ most on Quality: IAT 0.7 and IYY 8.1.
The five factor scores behind them are set out below, 0–10 and higher is better, ranked against every US equity ETF we track.
| Factor | IAT | IYY |
|---|---|---|
| Growth | 3.7 | 7.5 |
| Value | 7.6 | 2.9 |
| Risk | 0.9 | 6.4 |
| Quality | 0.7 | 8.1 |
| Return | 3.2 | 7.8 |
IYY is the cheaper of the two at 0.20% a year
As of October 9, 2026, IAT charges 0.37% a year, yields 2.88% and holds $604M in assets across 33 positions.
As of October 9, 2026, IYY charges 0.20% a year, yields 0.85% and holds $3.1B in assets across 941 positions.
| Measure | IAT | IYY |
|---|---|---|
| Expense ratio | 0.37% | 0.20% |
| Dividend yield | 2.88% | 0.85% |
| Assets under management | $604M | $3.1B |
| Holdings | 33 | 941 |
Expense ratio, dividend yield and assets under management are reported by the fund and refreshed daily. Every other figure on this page is computed by ETF Copilot.
Cite this
ETF Copilot, “IAT vs IYY holdings overlap and scores”, as of October 9, 2026.
https://etf-copilot.com/compare/iat-vs-iyy
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