IWS vs MDYV: how they differ
IWS and MDYV hold 18% of their weight in the same names, and IWS returned +20.2% over the year. iShares Russell Mid-Cap Value ETF and State Street SPDR S & P 400 Mid Cap Value ETF.
MDYV costs 0.08 points a year less; their one-year returns differ by 9.8 points; IWS is 5.6 times larger.
| IWS | MDYV | |
|---|---|---|
| Expense ratio | 0.23% | 0.15% |
| Net assets, IWS as of Oct 9, 2026 and MDYV as of Oct 8, 2026 | $15.3bn | $2.7bn |
| Total return, 1 year | +20.2% | +10.4% |
| Holdings in common | 18% | |
| Nasdaq-100, total return, 1 year | +23.6% | |
| Top ten holdings, share of the fund | 7.0% | 11.0% |
| Below its high | 4.6%, high on Aug 14, 2026 | 7.1%, high on Aug 14, 2026 |
Holdings in common uses holdings dated Oct 8, 2026.
What they hold in common
By the books each fund has filed, IWS and MDYV hold 18% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 8, 2026.
half
18% in common
On the same fields
IWS and MDYV on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.
IWS in plain words
IWS tracks an index. Over the year to Oct 9, 2026 it returned +20.2% with distributions reinvested, against +17.3% for the S&P 500 and +23.6% for the Nasdaq-100. The prospectus expense ratio is 0.23% a year. By its holdings published by its issuer for Oct 8, 2026, 66% of the fund by weight is stocks the S&P 500 also holds, across 719 positions, with the top ten at 7.0%. It sat 4.6% below its high of Aug 14, 2026 on Oct 9, 2026.
MDYV in plain words
MDYV tracks an index. Over the year to Oct 9, 2026 it returned +10.4% with distributions reinvested, against +17.3% for the S&P 500 and +23.6% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. By its holdings published by its issuer for Oct 8, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 296 positions, with the top ten at 11.0%. It sat 7.1% below its high of Aug 14, 2026 on Oct 9, 2026.
Questions people ask
- Which returned more over the last year, IWS or MDYV?
- In the year to Oct 9, 2026, with distributions reinvested, IWS returned +20.2% and MDYV +10.4%.
- Which is cheaper, IWS or MDYV?
- MDYV is cheaper, by 0.08 percentage points a year. On $10,000 held for a year that difference is about $8. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
How this is computed
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed.
ETFIQ, IWS against MDYV, data as of Oct 9, 2026. https://etfiq.com/compare/any/iws-vs-mdyv
ETFIQ. (Oct 9, 2026). IWS against MDYV. Retrieved from https://etfiq.com/compare/any/iws-vs-mdyv
[IWS against MDYV (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/iws-vs-mdyv)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.