ETF comparison
IUSG vs VOOG
Both US Large Cap Growth.
iShares Core S&P U.S. Growth ETF · Vanguard S&P 500 Growth Index Fund ETF Shares
Holdings overlap
145 positions appear in both funds. Buying equal dollars of IUSG and VOOG would leave roughly 90.9% 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
IUSG is 3 bps cheaper than VOOG. On a $100,000 position that's about $30/yr more in fees for VOOG.
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 IUSG vs VOOG.
Top shared holdings
145 shared in total| # | Holding | In IUSG | In VOOG | Overlap |
|---|---|---|---|---|
| 1 | NVIDIA CORP | 12.95% | 14.26% | 12.95% |
| 2 | MICROSOFT CORP | 7.41% | 9.29% | 7.41% |
| 3 | APPLE INC | 5.68% | 6.37% | 5.68% |
| 4 | ALPHABET INC | 5.60% | 6.16% | 5.60% |
| 5 | BROADCOM INC | 4.78% | 5.89% | 4.78% |
| 6 | ALPHABET INC | 4.46% | 4.89% | 4.46% |
| 7 | META PLATFORMS INC | 3.31% | 3.85% | 3.31% |
| 8 | AMAZON.COM INC | 3.31% | 3.90% | 3.31% |
| 9 | MICRON TECHNOLOGY INC | 3.48% | 3.04% | 3.04% |
| 10 | ELI LILLY & COMPANY | 2.54% | 2.43% | 2.43% |
| 11 | BERKSHIRE HATHAWAY INC | 2.45% | 2.42% | 2.42% |
| 12 | ADVANCED MICRO DEVICES INC | 2.53% | 2.34% | 2.34% |
Only in IUSG
245 total- MARVELL TECHNOLOGY INC 0.33%
- FLEX LTD 0.16%
- TWILIO INC 0.08%
- CARPENTER TECHNOLOGY CORP 0.08%
- CURTISS-WRIGHT CORP 0.07%
- NVENT ELECTRIC PLC 0.07%
- ATI INC 0.07%
- TECHNIPFMC PLC 0.07%
- STERLING INFRASTRUCTURE INC 0.07%
- MASTEC INC 0.07%
Only in VOOG
0 totalEvery VOOG position is also held by IUSG.
Related comparisons
More comparisons with IUSG
- IUSG vs IWF · iShares Russell 1000 Growth ETF 75.5%
- IUSG vs VUG · Vanguard Morningstar Growth ETF 75.0%
- IUSG vs IWY · iShares Russell Top 200 Growth ETF 72.2%
- IUSG vs MGK · Vanguard Morningstar Mega Cap Growth ETF 70.1%
- IUSG vs VONG · Vanguard Russell 1000 Growth Index Fund ETF Shares 69.4%
- IUSG vs FELG · Fidelity Enhanced Large Cap Growth ETF 67.8%
More comparisons with VOOG
- VOOG vs VUG · Vanguard Morningstar Growth ETF 74.9%
- VOOG vs IWF · iShares Russell 1000 Growth ETF 74.2%
- VOOG vs IWY · iShares Russell Top 200 Growth ETF 74.2%
- VOOG vs VONG · Vanguard Russell 1000 Growth Index Fund ETF Shares 72.9%
- VOOG vs MGK · Vanguard Morningstar Mega Cap Growth ETF 71.9%
- VOOG vs FELG · Fidelity Enhanced Large Cap Growth ETF 68.0%
Percentages are holdings overlap with the named fund.
Open IUSG or VOOG 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.