ETF comparison
IJJ vs IJK
Both US Mid Cap.
iShares S&P Mid-Cap 400 Value ETF · iShares S&P Mid-Cap 400 Growth ETF
Holdings overlap
142 positions appear in both funds. Buying equal dollars of IJJ and IJK would leave roughly 28.0% 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
IJK is 2 bps cheaper than IJJ. On a $100,000 position that's about $20/yr more in fees for IJJ.
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 IJJ vs IJK.
Top shared holdings
142 shared in total| # | Holding | In IJJ | In IJK | Overlap |
|---|---|---|---|---|
| 1 | Illumina, Inc. | 0.70% | 0.76% | 0.70% |
| 2 | Entegris, Inc. | 0.95% | 0.58% | 0.58% |
| 3 | MKS, Inc. | 0.50% | 1.13% | 0.50% |
| 4 | Lattice Semiconductor Corp. | 0.49% | 0.65% | 0.49% |
| 5 | Onto Innovation, Inc. | 0.56% | 0.48% | 0.48% |
| 6 | East West Bancorp, Inc. | 0.50% | 0.48% | 0.48% |
| 7 | Burlington Stores, Inc. | 0.45% | 0.64% | 0.45% |
| 8 | WP Carey, Inc. | 0.43% | 0.45% | 0.43% |
| 9 | Clean Harbors, Inc. | 0.42% | 0.40% | 0.40% |
| 10 | Roivant Sciences Ltd. | 0.38% | 0.49% | 0.38% |
| 11 | TransUnion | 0.38% | 0.38% | 0.38% |
| 12 | Solstice Advanced Materials, Inc. | 0.38% | 0.40% | 0.38% |
Only in IJJ
157 total- US Foods Holding Corp. 1.29%
- TD SYNNEX Corp. 1.15%
- Reliance, Inc. 1.10%
- Performance Food Group Co. 1.01%
- WESCO International, Inc. 0.97%
- Annaly Capital Management, Inc. 0.94%
- Regal Rexnord Corp. 0.91%
- Toll Brothers, Inc. 0.90%
- Pinnacle Financial Partners, Inc. 0.87%
- Aramark 0.86%
Only in IJK
101 total- Twilio, Inc. 1.66%
- Carpenter Technology Corp. 1.62%
- Curtiss-Wright Corp. 1.48%
- nVent Electric plc 1.45%
- ATI, Inc. 1.42%
- TechnipFMC plc 1.40%
- Sterling Infrastructure, Inc. 1.36%
- MasTec, Inc. 1.36%
- Woodward, Inc. 1.34%
- MACOM Technology Solutions Holdings, Inc. 1.32%
Related comparisons
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Percentages are holdings overlap with the named fund.
Open IJJ or IJK 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.