ETF comparison
IWR vs VUG
US Mid Cap vs US Large Cap Growth.
iShares Russell Mid-Cap ETF · Vanguard Morningstar Growth ETF
Holdings overlap
66 positions appear in both funds. Buying equal dollars of IWR and VUG would leave roughly 7.1% 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
VUG is 15 bps cheaper than IWR. On a $100,000 position that's about $150/yr more in fees for IWR.
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 VUG.
Top shared holdings
66 shared in total| # | Holding | In IWR | In VUG | Overlap |
|---|---|---|---|---|
| 1 | Datadog, Inc. | 0.62% | 0.26% | 0.26% |
| 2 | Snowflake, Inc. | 0.61% | 0.25% | 0.25% |
| 3 | Robinhood Markets, Inc. | 0.56% | 0.23% | 0.23% |
| 4 | Cloudflare, Inc. | 0.56% | 0.23% | 0.23% |
| 5 | Coherent Corp. | 0.50% | 0.23% | 0.23% |
| 6 | Teradyne, Inc. | 0.55% | 0.23% | 0.23% |
| 7 | Comfort Systems USA, Inc. | 0.50% | 0.21% | 0.21% |
| 8 | Lumentum Holdings, Inc. | 0.44% | 0.20% | 0.20% |
| 9 | WW Grainger, Inc. | 0.43% | 0.19% | 0.19% |
| 10 | Rocket Lab Corp. | 0.39% | 0.18% | 0.18% |
| 11 | Targa Resources Corp. | 0.41% | 0.18% | 0.18% |
| 12 | Fastenal Co. | 0.40% | 0.17% | 0.17% |
Only in IWR
758 total- Marathon Petroleum Corp. 0.54%
- Simon Property Group, Inc. 0.52%
- United Rentals, Inc. 0.51%
- Phillips 66 0.49%
- Warner Bros Discovery, Inc. 0.46%
- Digital Realty Trust, Inc. 0.45%
- Kinder Morgan, Inc. 0.45%
- Delta Air Lines, Inc. 0.44%
- Allstate Corp. (The) 0.44%
- Keysight Technologies, Inc. 0.43%
Only in VUG
80 total- NVIDIA Corp 12.63%
- Apple Inc 11.67%
- Microsoft Corp 7.61%
- Alphabet Inc 5.76%
- Alphabet Inc 4.53%
- Amazon.com Inc 4.47%
- Broadcom Inc 4.28%
- Meta Platforms Inc 3.41%
- Tesla Inc 3.27%
- Eli Lilly & Co 2.81%
Related comparisons
More comparisons with IWR
More comparisons with VUG
- VUG vs DFUV · Dimensional US Marketwide Value ETF 7.0%
- VUG vs MGV · Vanguard Morningstar Mega Cap Value ETF 5.9%
- VUG vs SPLV · Invesco S&P 500 Low Volatility ETF 5.8%
- VUG vs IWP · iShares Russell Mid-Cap Growth ETF 5.6%
- VUG vs VTV · Vanguard Morningstar Value ETF 3.7%
- VUG vs FNDA · Schwab Fundamental U.S. Small Company ETF 3.1%
Percentages are holdings overlap with the named fund.
Open IWR or VUG 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.