IVOO vs IWP: Holdings Overlap
IVOOVanguard S&P Mid-cap 400 Index Fund
Vanguard · 400 holdings · $3.9B · as of 2026-05-31
IWPiShares Russell Mid-Cap Growth ETF
iShares · 277 holdings · $20.5B · as of 2026-03-31
Holdings snapshots are 61 days apart (IVOO: 2026-05-31, IWP: 2026-03-31). 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 IVOO and IWP?
Vanguard S&P Mid-cap 400 Index Fund (IVOO, by Vanguard) holds 400 positions; iShares Russell Mid-Cap Growth ETF (IWP, by iShares) holds 277. They have 94 holdings in common, and by portfolio weight the two funds are 13.1% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 13.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 94IVOO holds 400 · IWP holds 277
- Weight in Shared Holdings
- IVOO 26%·IWP 15%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 IVOO
306 of 400 positions (74.0% of the fund) are not held by IWP. Showing the top 30 by weight.
Only in IWP
183 of 277 positions (85.1% of the fund) are not held by IVOO. Showing the top 30 by weight.
Sector Breakdown
| Sector | IVOO | IWP |
|---|---|---|
| Industrials | 25.6% | 24.4% |
| Consumer Discretionary | 11.1% | 21.2% |
| Information Technology | 15.7% | 15.6% |
| Health Care | 8.7% | 14.9% |
| Financials | 14.3% | 8.5% |
| Other Sectors | 24.4% | 15.3% |
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 |
|---|---|---|---|---|---|---|---|
| IVOO | +3.1% | +18.5% | +26.0% | +14.6% | +9.0% | +11.2% | 1.14% |
| IWP | +1.5% | +5.4% | +3.1% | +14.6% | +5.1% | +12.1% | 0.34% |
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 IVOO vs IWP →
Shared Holdings(94)
The top 10 shared positions account for 32% of the overlap, led by BURL, P and SGI.
 BURLBurlington Stores Inc. COM | 0.57% | 0.74% | 0.57% |
|---|---|---|---|
 PEverpure, Inc., Class A | 0.71% | 0.57% | 0.57% |
 SGISomnigroup International Inc. COM | 0.42% | 0.54% | 0.42% |
 NBIXNeurocrine Biosciences Inc COM | 0.45% | 0.39% | 0.39% |
 LSCCLattice Semiconductor Corporation COM | 0.57% | 0.39% | 0.39% |
 LAMRLamar Advertising Company Class A | 0.38% | 0.39% | 0.38% |
 GWREGuidewire Software Inc COM | 0.37% | 0.46% | 0.37% |
 DTDynatrace Inc COM NEW | 0.36% | 0.39% | 0.36% |
 PENPenumbra Inc. COM | 0.36% | 0.45% | 0.36% |
 TXRHTexas Roadhouse Inc COM | 0.34% | 0.39% | 0.34% |
 EQHEquitable Holdings Inc COM | 0.33% | 0.34% | 0.33% |
 EXELExelixis, Inc. COM | 0.37% | 0.33% | 0.33% |
 MEDPMedpace Holdings Inc. COM | 0.29% | 0.39% | 0.29% |
 BAHBooz Allen Hamilton Holding Corporation Class A | 0.27% | 0.34% | 0.27% |
 MANHManhattan Associates Inc COM | 0.26% | 0.28% | 0.26% |
 DOCUDocusign, Inc., Class A | 0.30% | 0.26% | 0.26% |
 MUSAMurphy USA Inc. COM | 0.24% | 0.30% | 0.24% |
| Masimo Corporation COM | 0.23% | 0.29% | 0.23% |
 SFMSprouts Farmers Markets Inc COM | 0.23% | 0.27% | 0.23% |
 HALOHalozyme Therapeutics Inc COM | 0.22% | 0.27% | 0.22% |
 CAVACAVA Group Inc. COM | 0.22% | 0.29% | 0.22% |
 BROSDutch Bros, Inc., Class A | 0.21% | 0.23% | 0.21% |
 AAONAaon Inc COM PAR $0.004 | 0.27% | 0.20% | 0.20% |
 CNMCore & Main, Inc., Class A | 0.27% | 0.20% | 0.20% |
 PINSPinterest, Inc., Class A | 0.33% | 0.19% | 0.19% |
Frequently Asked Questions
How much do IVOO and IWP overlap?
IVOO and IWP overlap by 13.1% of portfolio weight. They share 94 holdings (IVOO holds 400 positions and IWP holds 277), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IVOO and IWP?
The two portfolios are 13.1% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of IVOO and IWP?
The largest positions held by both funds are BURL, P, SGI, NBIX and LSCC. Together the top 10 shared positions account for 32% of the total overlap.
What does IVOO own that IWP doesn't?
306 positions (74.0% of IVOO) are unique to IVOO, led by FLEX, FTI and CW. In the other direction, 183 positions (85.1% of IWP) are unique to IWP.