IWS vs SPMD: holdings overlap, shared companies and scores
As of September 11, 2026, IWS and SPMD overlap 23.6% by weight. iShares Russell Mid-Cap Value ETF (IWS): U.S. mid-cap value stocks. State Street SPDR Portfolio S&P 400 Mid Cap ETF (SPMD): U.S. mid-cap equities.
Updated September 11, 2026
How much do IWS and SPMD overlap?
As of September 11, 2026, IWS and SPMD overlap 23.6% by weight.
24% of IWS is already inside SPMD.
77% of SPMD is already inside IWS.
IWS holds 716 companies and SPMD holds 399; 282 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 IWS and SPMD?
As of September 11, 2026, ETF Copilot scores IWS 4.4 out of 10 and SPMD 4.4 out of 10.
They differ most on Growth: IWS 4.4 and SPMD 6.1.
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 | IWS | SPMD |
|---|---|---|
| Growth | 4.4 | 6.1 |
| Valuation | 6.0 | 5.3 |
| Risk | 4.0 | 3.5 |
| Quality | 2.7 | 1.9 |
| Return | 4.8 | 4.4 |
SPMD is the cheaper of the two at 0.03% a year
As of September 11, 2026, IWS charges 0.23% a year, yields 1.84% and holds $15.7B in assets across 716 positions.
As of September 11, 2026, SPMD charges 0.03% a year, yields 1.28% and holds $18.6B in assets across 399 positions.
| Measure | IWS | SPMD |
|---|---|---|
| Expense ratio | 0.23% | 0.03% |
| Dividend yield | 1.84% | 1.28% |
| Assets under management | $15.7B | $18.6B |
| Holdings | 716 | 399 |
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.
Where IWS and SPMD trade against their own history
IWS trades at 18.6 times earnings, against its own median of 17.3, and is more expensive than 61% of its own 114 monthly readings since 2017.
SPMD trades at 20.2 times earnings, against its own median of 18.8, and is more expensive than 68% of its own 114 monthly readings since 2017.
What moved IWS and SPMD this week
IWS fell 2.3% in the week to September 11, 2026. The holdings that moved it most were Baker Hughes (−7.2%), Workday (−10.3%) and Coinbase Global (−9.1%); Hewlett Packa (+14.1%) pushed the other way.
SPMD fell 1.7% in the week to September 11, 2026. The holdings that moved it most were Guidewire Software (−30.5%), Illumina (−6.9%) and Twilio (−5.5%); Semtech (+23.5%) pushed the other way.
What do IWS and SPMD each hold?
What's inside IWS: Tech 12%, Semiconductors 1%.
7% of IWS is its ten largest holdings.
What's inside SPMD: Tech 16%, Semiconductors 4%.
8% of SPMD is its ten largest holdings.
Compare with similar funds
Cite this
ETF Copilot, “IWS vs SPMD holdings overlap and scores”, as of September 11, 2026.
https://etf-copilot.com/compare/iws-vs-spmd
Register free to unlock IWS vs SPMD prices and holdings on ETF Copilot.
Register free →