ETF comparison
IWB vs RSP
Both US Large Cap.
Holdings overlap
497 positions appear in both funds. Buying equal dollars of IWB and RSP would leave roughly 41.3% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
IWB is 5 bps cheaper than RSP. On a $100,000 position that's about $50/yr more in fees for RSP.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with IWB vs RSP.
Top shared holdings
497 shared in total| # | Holding | In IWB | In RSP | Overlap |
|---|---|---|---|---|
| 1 | PALO ALTO NETWORKS, INC. | 0.40% | 0.24% | 0.24% |
| 2 | RTX CORPORATION | 0.37% | 0.23% | 0.23% |
| 3 | THERMO FISHER SCIENTIFIC INCORPORATED | 0.27% | 0.23% | 0.23% |
| 4 | ARISTA NETWORKS, INC. | 0.26% | 0.23% | 0.23% |
| 5 | CROWDSTRIKE HOLDINGS, INC. | 0.28% | 0.23% | 0.23% |
| 6 | MASTERCARD INCORPORATED | 0.60% | 0.23% | 0.23% |
| 7 | ABBOTT LABORATORIES | 0.23% | 0.23% | 0.23% |
| 8 | MICROSOFT CORPORATION | 3.99% | 0.23% | 0.23% |
| 9 | GE VERNOVA INC. | 0.46% | 0.22% | 0.22% |
| 10 | AMAZON.COM, INC. | 3.33% | 0.22% | 0.22% |
| 11 | AMGEN INC. | 0.28% | 0.22% | 0.22% |
| 12 | JPMORGAN CHASE & CO. | 1.26% | 0.22% | 0.22% |
Only in IWB
527 total- EXXON MOBIL CORPORATION 0.82%
- SPACE EXPLORATION TECHNOLOGIES CORP. 0.13%
- SNOWFLAKE INC. 0.12%
- BLOOM ENERGY CORPORATION 0.12%
- CLOUDFLARE, INC. 0.11%
- Astera Labs, Inc 0.11%
- SPOTIFY TECHNOLOGY S.A. 0.10%
- ROCKET LAB CORPORATION 0.08%
- CHENIERE ENERGY, INC. 0.07%
- Nu Holdings Ltd. 0.07%
Only in RSP
7 total- Seagate Technology Holdings PLC 0.20%
- Erie Indemnity Co. 0.20%
- ExxonMobil Holdings Corp. 0.20%
- TE Connectivity PLC 0.20%
- Invesco Government & Agency Portfolio 0.18%
- NXP Semiconductors N.V. 0.16%
- Paramount Skydance Corp. 0.15%
Related comparisons
More comparisons with IWB
- IWB vs DGRO · iShares Core Dividend Growth ETF 40.8%
- IWB vs VTV · Vanguard Morningstar Value ETF 40.6%
- IWB vs TCAF · T. Rowe Price Capital Appreciation Equity ETF 38.8%
- IWB vs VIG · Vanguard Dividend Appreciation Index Fund ETF Shares 38.6%
- IWB vs VYM · Vanguard High Dividend Yield Index Fund ETF Shares 32.7%
- IWB vs DIA · State Street SPDR Dow Jones Industrial Average ETF Trust 27.2%
More comparisons with RSP
- RSP vs VV · Vanguard Morningstar Large-Cap ETF 41.3%
- RSP vs VONE · Vanguard Russell 1000 Index Fund ETF Shares 41.0%
- RSP vs VTI · Vanguard Morningstar Total Stock Market ETF 40.5%
- RSP vs ITOT · iShares Core S&P Total U.S. Stock Market ETF 40.4%
- RSP vs SCHB · Schwab U.S. Broad Market ETF 40.1%
- RSP vs VYM · Vanguard High Dividend Yield Index Fund ETF Shares 37.2%
Percentages are holdings overlap with the named fund.
Open IWB or RSP at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.