IWP vs RSP: Holdings Overlap
IWPiShares Russell Mid-Cap Growth ETF
iShares · 277 holdings · $20.5B · as of 2026-03-31
RSPInvesco S&P 500 Equal Weight ETF
Invesco · 504 holdings · $97.5B · as of 2026-04-30
Holdings snapshots are 30 days apart (IWP: 2026-03-31, RSP: 2026-04-30). 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 IWP and RSP?
iShares Russell Mid-Cap Growth ETF (IWP, by iShares) holds 277 positions; Invesco S&P 500 Equal Weight ETF (RSP, by Invesco) holds 504. They have 87 holdings in common, and by portfolio weight the two funds are 14.4% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 14.4%Sum of the smaller weight of each shared holding
- Shared Holdings
- 87IWP holds 277 · RSP holds 504
- Weight in Shared Holdings
- IWP 60%·RSP 17%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 IWP
190 of 277 positions (39.8% of the fund) are not held by RSP. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWP | RSP |
|---|---|---|
| Industrials | 24.4% | 15.5% |
| Consumer Discretionary | 21.2% | 9.2% |
| Information Technology | 15.6% | 15.9% |
| Financials | 8.5% | 15.5% |
| Health Care | 14.9% | 10.9% |
| Other Sectors | 15.3% | 32.5% |
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.
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IWP | +1.5% | +5.4% | +3.1% | +14.6% | +5.1% | +12.1% | 0.34% |
| RSP | +2.5% | +15.8% | +22.4% | +14.8% | +9.2% | +12.0% | 1.46% |
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 IWP vs RSP →
Shared Holdings(87)
The top 10 shared positions account for 17% of the overlap, led by MPWR, JBL and FIX.
 MPWRMonolithic Power Systems, Inc. | 1.82% | 0.29% | 0.29% |
|---|---|---|---|
 JBLJabil, Inc. | 0.65% | 0.25% | 0.25% |
 FIXComfort Systems USA, Inc. | 1.73% | 0.25% | 0.25% |
 PWRQuanta Services, Inc. | 2.25% | 0.25% | 0.25% |
 CVNACarvana Co., Class A | 1.53% | 0.25% | 0.25% |
 EMEEMCOR Group, Inc. | 0.41% | 0.24% | 0.24% |
 VRTVertiv Holdings Co., Class A | 3.43% | 0.24% | 0.24% |
 ARESAres Management Corp., Class A | 0.74% | 0.22% | 0.22% |
 NTAPNetApp, Inc. | 0.29% | 0.22% | 0.22% |
 BNYBank of New York Mellon Corp. (The) | 0.21% | 0.22% | 0.21% |
 TRGPTarga Resources Corp. | 1.92% | 0.21% | 0.21% |
 HLTHilton Worldwide Holdings, Inc. | 2.49% | 0.21% | 0.21% |
 XYZBlock, Inc., Class A | 0.43% | 0.21% | 0.21% |
 MSCIMSCI, Inc. | 0.68% | 0.21% | 0.21% |
 EXPEExpedia Group, Inc. | 0.96% | 0.21% | 0.21% |
 SPGSimon Property Group, Inc. | 0.48% | 0.21% | 0.21% |
 ROSTRoss Stores, Inc. | 0.50% | 0.21% | 0.21% |
 AMPAmeriprise Financial, Inc. | 1.32% | 0.20% | 0.20% |
 LIILennox International, Inc. | 0.53% | 0.20% | 0.20% |
 NRGNRG Energy, Inc. | 1.08% | 0.20% | 0.20% |
 GWWW.W. Grainger, Inc. | 1.46% | 0.20% | 0.20% |
 WATWaters Corp. | 0.33% | 0.20% | 0.20% |
 DDOGDatadog, Inc., Class A | 1.33% | 0.20% | 0.20% |
 CCLCarnival Corp. | 0.33% | 0.20% | 0.20% |
 YUMYum! Brands, Inc. | 0.52% | 0.20% | 0.20% |
Frequently Asked Questions
How much do IWP and RSP overlap?
IWP and RSP overlap by 14.4% of portfolio weight. They share 87 holdings (IWP holds 277 positions and RSP holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWP and RSP?
The two portfolios are 14.4% 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 IWP and RSP?
The largest positions held by both funds are MPWR, JBL, FIX, PWR and CVNA. Together the top 10 shared positions account for 17% of the total overlap.
What does IWP own that RSP doesn't?
190 positions (39.8% of IWP) are unique to IWP, led by NET, ALNY and RBLX. In the other direction, 417 positions (82.7% of RSP) are unique to RSP.