IWB vs RSP: Holdings Overlap
iShares · 1005 holdings · $49.9B · 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 (IWB: 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 IWB and RSP?
iShares Russell 1000 ETF (IWB, by iShares) holds 1005 positions; Invesco S&P 500 Equal Weight ETF (RSP, by Invesco) holds 504. They have 497 holdings in common, and by portfolio weight the two funds are 44.0% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 44.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 497IWB holds 1005 · RSP holds 504
- Weight in Shared Holdings
- IWB 92%·RSP 98%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 IWB
508 of 1005 positions (7.5% of the fund) are not held by RSP. Showing the top 30 by weight.
Sector Breakdown
| Sector | IWB | RSP |
|---|---|---|
| Information Technology | 30.9% | 15.9% |
| Industrials | 9.9% | 15.5% |
| Financials | 12.9% | 15.5% |
| Health Care | 9.6% | 10.9% |
| Communication Services | 10.2% | 4.0% |
| Other Sectors | 26.3% | 37.8% |
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 |
|---|---|---|---|---|---|---|---|
| IWB | +3.4% | +13.9% | +23.1% | +20.9% | +12.6% | +15.0% | 0.89% |
| 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 IWB vs RSP →
Shared Holdings(497)
The top 10 shared positions account for 6% of the overlap, led by AMD, INTC and TXN.
 AMDAdvanced Micro Devices Inc. COM | 0.55% | 0.33% | 0.33% |
|---|---|---|---|
 INTCIntel Corporation COM | 0.32% | 0.38% | 0.32% |
 TXNTexas Instruments Inc. COM | 0.29% | 0.27% | 0.27% |
 UNHUnitedHealth Group Inc. COM | 0.41% | 0.25% | 0.25% |
 GEVGE Vernova Inc. COM | 0.39% | 0.25% | 0.25% |
 ADIAnalog Devices Inc. COM | 0.26% | 0.24% | 0.24% |
 CATCaterpillar Inc COM | 0.55% | 0.24% | 0.24% |
 AMZNAmazon.com, Inc. COM | 3.33% | 0.24% | 0.24% |
 MUMicron Technology Inc. COM | 0.63% | 0.24% | 0.24% |
 AVGOBroadcom Inc COM | 2.39% | 0.23% | 0.23% |
 ETNEaton Corporation PLC COM USD0.01 | 0.23% | 0.23% | 0.23% |
 QCOMQUALCOMM Inc. COM | 0.23% | 0.26% | 0.23% |
 MSMorgan Stanley COM NEW | 0.31% | 0.23% | 0.23% |
 KLACKLA Corp. COM NEW | 0.32% | 0.23% | 0.23% |
 LRCXLam Research Corporation COM NEW | 0.45% | 0.23% | 0.23% |
 CCitigroup Inc. COM NEW | 0.33% | 0.23% | 0.23% |
 CSCOCisco Systems, Inc. COM | 0.52% | 0.22% | 0.22% |
 AMATApplied Materials Inc. COM | 0.45% | 0.22% | 0.22% |
 BLKBlackrock Inc. COM | 0.24% | 0.22% | 0.22% |
 GSGoldman Sachs Group, Inc. (The) | 0.41% | 0.22% | 0.22% |
 BACBank of America Corp. COM | 0.53% | 0.21% | 0.21% |
 ANETArista Networks Inc COM SHS | 0.21% | 0.24% | 0.21% |
 APHAmphenol Corporation CL A | 0.26% | 0.21% | 0.21% |
 JPMJPMorgan Chase & Co. COM | 1.33% | 0.21% | 0.21% |
 PANWPalo Alto Networks Inc COM | 0.21% | 0.21% | 0.21% |
Showing the top 250 of 497 shared holdings by overlap weight.
Frequently Asked Questions
How much do IWB and RSP overlap?
IWB and RSP overlap by 44.0% of portfolio weight. They share 497 holdings (IWB holds 1005 positions and RSP holds 504), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IWB and RSP?
The two portfolios are 44.0% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of IWB and RSP?
The largest positions held by both funds are AMD, INTC, TXN, UNH and GEV. Together the top 10 shared positions account for 6% of the total overlap.
What does IWB own that RSP doesn't?
508 positions (7.5% of IWB) are unique to IWB, led by MRVL, SPOT and NET. In the other direction, 7 positions (1.4% of RSP) are unique to RSP.