IWO vs SLYV: Holdings Overlap
IWOiShares Russell 2000 Growth ETF
iShares · 1101 holdings · $14.8B · as of 2026-03-31
SLYVState Street® SPDR® S&P 600™ Small Cap Value ETF
State Street (SPDR) · 462 holdings · $5.1B · as of 2026-08-06
Holdings snapshots are 128 days apart (IWO: 2026-03-31, SLYV: 2026-08-06). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are IWO and SLYV?
iShares Russell 2000 Growth ETF (IWO, by iShares) holds 1101 positions; State Street® SPDR® S&P 600™ Small Cap Value ETF (SLYV, by State Street (SPDR)) holds 462. They have 188 holdings in common, and by portfolio weight the two funds are 15.8% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 15.8%Sum of the smaller weight of each shared holding
- Shared Holdings
- 188IWO holds 1101 · SLYV holds 462
- Weight in Shared Holdings
- IWO 18%·SLYV 33%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 IWO
913 of 1101 positions (81.3% of the fund) are not held by SLYV. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWO | SLYV |
|---|---|---|
| Industrials | 23.7% | 13.2% |
| Health Care | 23.1% | 6.5% |
| Financials | 8.6% | 22.1% |
| Information Technology | 19.0% | 11.8% |
| Consumer Discretionary | 7.3% | 15.7% |
| Other Sectors | 14.1% | 29.6% |
| Unclassified | 4.0% | 1.0% |
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 (4% of IWO, 1% of SLYV).
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWO | +1.2% | +21.0% | +34.7% | +17.5% | +5.9% | +11.0% | 0.42% |
| SLYV | +3.6% | +23.2% | +39.5% | +13.6% | +8.2% | +10.3% | 1.78% |
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 IWO vs SLYV →
Shared Holdings(188)
The top 10 shared positions account for 17% of the overlap, led by GKOS, PLXS and LUMN.
 GKOSGlaukos Corp. COM | 0.40% | 0.34% | 0.34% |
|---|---|---|---|
 PLXSPlexus Corp COM | 0.34% | 0.43% | 0.34% |
 LUMNLumen Technologies Inc COM | 0.39% | 0.33% | 0.33% |
 SKYChampion Homes Inc. COM | 0.28% | 0.29% | 0.28% |
 CSWCSW Industrials Inc. COM | 0.28% | 0.26% | 0.26% |
 BCPCBalchem Corp COM | 0.37% | 0.25% | 0.25% |
 LRNStride Inc COM | 0.25% | 0.36% | 0.25% |
 PIPRPiper Sandler Companies COM NEW | 0.36% | 0.25% | 0.25% |
 SFBSServisFirst Bancshares Inc. COM | 0.25% | 0.24% | 0.24% |
 MCMoelis & Co., Class A | 0.25% | 0.23% | 0.23% |
 CCThe Chemours Company LLC COM | 0.22% | 0.24% | 0.22% |
 MMSIMerit Medical Systems Inc. COM | 0.25% | 0.21% | 0.21% |
 OIIOceaneering International, Inc. COM | 0.21% | 0.21% | 0.21% |
 ACIWACI Worldwide Inc COM | 0.28% | 0.21% | 0.21% |
 KAIKadant Inc COM | 0.23% | 0.21% | 0.21% |
 ITGRInteger Holdings Corp. COM | 0.20% | 0.46% | 0.20% |
 LTHLife Time Group Holdings Inc COMMON STOCK | 0.27% | 0.20% | 0.20% |
 FELEFranklin Electric Co Inc COM | 0.24% | 0.20% | 0.20% |
 KTBKontoor Brands Inc COM | 0.21% | 0.20% | 0.20% |
 WHDCactus, Inc., Class A | 0.22% | 0.19% | 0.19% |
 RDNTRadnet Inc COM | 0.21% | 0.19% | 0.19% |
 POWIPower Integrations Inc. COM | 0.19% | 0.35% | 0.19% |
 VCTRVictory Capital Holdings, Inc., Class A | 0.20% | 0.18% | 0.18% |
 GFFGriffon Corp COM | 0.19% | 0.18% | 0.18% |
 BGCBGC Group, Inc., Class A | 0.24% | 0.17% | 0.17% |
Frequently Asked Questions
How much do IWO and SLYV overlap?
IWO and SLYV overlap by 15.8% of portfolio weight. They share 188 holdings (IWO holds 1101 positions and SLYV holds 462), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWO and SLYV?
The two portfolios are 15.8% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IWO and SLYV?
The largest positions held by both funds are GKOS, PLXS, LUMN, SKY and CSW. Together the top 10 shared positions account for 17% of the total overlap.
What does IWO own that SLYV doesn't?
913 positions (81.3% of IWO) are unique to IWO, led by BE, FN and CRDO. In the other direction, 274 positions (67.2% of SLYV) are unique to SLYV.