IWM vs SDY: how much do they overlap?
iShares Russell 2000 ETF (IWM) · SPDR S&P Dividend ETF (SDY)
overlap by weight · 20 shared holdings
IWM: 1934 holdings (as of 2026-03-31) · SDY: 156 holdings (as of 09-Jul-2026)
Note: the two funds' latest official filings have different dates, which can understate overlap slightly for funds tracking similar indexes.
Low overlap
What this means
IWM and SDY hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Overlap by weight sums the smaller of the two funds' weights for every stock they both hold — it answers "how much of my money is in the same stocks either way?" See methodology.
Top shared holdings
| Company | Ticker | in IWM | in SDY |
|---|---|---|---|
| UMB Financial Corp. | UMBF | 0.28% | 0.45% |
| United Bankshares, Inc. | UBSI | 0.2% | 0.29% |
| New Jersey Resources Corp. | NJR | 0.19% | 0.28% |
| Spire, Inc. | SR | 0.18% | 0.23% |
| Black Hills Corp. | BKH | 0.18% | 0.25% |
| ONE Gas, Inc. | OGS | 0.18% | 0.22% |
| Badger Meter, Inc. | BMI | 0.15% | 0.26% |
| Franklin Electric Co., Inc. | FELE | 0.12% | 0.17% |
| HB Fuller Co. | FUL | 0.11% | 0.14% |
| Avista Corp. | AVA | 0.11% | 0.16% |
FAQ
How much do IWM and SDY overlap?
IWM and SDY have a 2.6% overlap by weight, sharing 20 holdings (out of 1934 in IWM and 156 in SDY), based on official issuer holdings as of 2026-03-31.
What does 2.6% overlap mean?
IWM and SDY hold mostly different stocks. Combining them genuinely spreads your exposure across different parts of the market.
Which stocks do IWM and SDY both hold?
The largest shared positions are UMB Financial Corp., United Bankshares, Inc., New Jersey Resources Corp., Spire, Inc., Black Hills Corp.. The full list of top shared holdings with weights in each fund is shown on this page.