ETF comparison
IWR vs QQQ
US Mid Cap vs US Large Cap Growth.
Holdings overlap
29 positions appear in both funds. Buying equal dollars of IWR and QQQ would leave roughly 6.0% 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
Expense ratios are effectively identical (0.18% vs 0.18%).
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 IWR vs QQQ.
Top shared holdings
29 shared in total| # | Holding | In IWR | In QQQ | Overlap |
|---|---|---|---|---|
| 1 | Datadog, Inc. | 0.62% | 0.37% | 0.37% |
| 2 | Astera Labs, Inc. | 0.53% | 0.36% | 0.36% |
| 3 | Teradyne, Inc. | 0.55% | 0.33% | 0.33% |
| 4 | Warner Bros Discovery, Inc. | 0.46% | 0.29% | 0.29% |
| 5 | Lumentum Holdings, Inc. | 0.44% | 0.29% | 0.29% |
| 6 | Rocket Lab Corp. | 0.39% | 0.25% | 0.25% |
| 7 | Fastenal Co. | 0.40% | 0.24% | 0.24% |
| 8 | Baker Hughes Co. | 0.40% | 0.24% | 0.24% |
| 9 | Electronic Arts, Inc. | 0.37% | 0.22% | 0.22% |
| 10 | Xcel Energy, Inc. | 0.36% | 0.22% | 0.22% |
| 11 | Diamondback Energy, Inc. | 0.24% | 0.21% | 0.21% |
| 12 | Microchip Technology, Inc. | 0.35% | 0.21% | 0.21% |
Only in IWR
795 total- Snowflake, Inc. 0.61%
- Royal Caribbean Cruises Ltd. 0.58%
- Cloudflare, Inc. 0.56%
- Robinhood Markets, Inc. 0.56%
- Marathon Petroleum Corp. 0.54%
- Simon Property Group, Inc. 0.52%
- United Rentals, Inc. 0.51%
- Coherent Corp. 0.50%
- Comfort Systems USA, Inc. 0.50%
- Phillips 66 0.49%
Only in QQQ
73 total- NVIDIA Corp. 7.60%
- Apple Inc. 6.67%
- Micron Technology, Inc. 5.64%
- Microsoft Corp. 4.35%
- Advanced Micro Devices, Inc. 4.10%
- Amazon.com, Inc. 4.02%
- Tesla, Inc. 3.30%
- Alphabet Inc. 3.27%
- Intel Corp. 3.04%
- Alphabet Inc. 3.02%
Related comparisons
More comparisons with IWR
More comparisons with QQQ
- QQQ vs SCHD · Schwab U.S. Dividend Equity ETF 4.8%
- QQQ vs VFLO · Victoryshares Free Cash Flow ETF 4.8%
- QQQ vs NOBL · ProShares S&P 500 Dividend Aristocrats ETF 4.2%
- QQQ vs IWP · iShares Russell Mid-Cap Growth ETF 3.7%
- QQQ vs VOE · Vanguard Morningstar Mid-Cap Value ETF 3.1%
- QQQ vs IWS · iShares Russell Mid-Cap Value ETF 2.9%
Percentages are holdings overlap with the named fund.
Open IWR or QQQ 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.