ETF comparison
IJJvsMDY
Both US Mid Cap.
iShares S&P Mid-Cap 400 Value ETF · State Street SPDR S&P MIDCAP 400 ETF Trust
Holdings overlap
284 positions appear in both funds. Buying equal dollars of IJJ and MDY would leave roughly58.3%of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — seewhat we don't scorefor why.
Cost difference
IJJ is 5 bps cheaper than MDY. On a $100,000 position that's about $50/yr more in fees for MDY.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open thecost calculator pre-filled with IJJ vs MDY.
Top shared holdings
284 shared in total| # | Holding | In IJJ | In MDY | Overlap |
|---|---|---|---|---|
| 1 | Illumina, Inc. | 0.70% | 0.93% | 0.70% |
| 2 | US Foods Holding Corp. | 1.29% | 0.64% | 0.64% |
| 3 | Reliance, Inc. | 1.10% | 0.56% | 0.56% |
| 4 | Entegris, Inc. | 0.95% | 0.55% | 0.55% |
| 5 | TD SYNNEX Corp. | 1.15% | 0.54% | 0.54% |
| 6 | Permian Resources Corp. | 0.83% | 0.52% | 0.52% |
| 7 | Ovintiv, Inc. | 0.83% | 0.50% | 0.50% |
| 8 | East West Bancorp, Inc. | 0.50% | 0.50% | 0.50% |
| 9 | MKS, Inc. | 0.50% | 0.47% | 0.47% |
| 10 | Jones Lang LaSalle, Inc. | 0.83% | 0.47% | 0.47% |
| 11 | Reinsurance Group of America, Inc. | 0.80% | 0.46% | 0.46% |
| 12 | Annaly Capital Management, Inc. | 0.94% | 0.46% | 0.46% |
Only in IJJ
17 total- BlackRock Funds III2.99%
- Webster Financial Corp.0.71%
- SharkNinja, Inc.0.62%
- CNH Industrial NV0.57%
- Axalta Coating Systems Ltd.0.42%
- Sensata Technologies Holding plc0.40%
- Taylor Morrison Home Corp.0.38%
- Roivant Sciences Ltd.0.38%
- RenaissanceRe Holdings Ltd.0.37%
- Janus Henderson Group plc0.37%
Only in MDY
117 total- Twilio Inc. Class A1.01%
- TechnipFMC plc0.88%
- Everpure Inc. Class A0.86%
- Okta Inc. Class A0.79%
- ATI Inc0.77%
- U.S. Dollar0.77%
- nVent Electric plc0.68%
- Carpenter Technology Corporation0.64%
- Tenet Healthcare Corporation0.63%
- Coeur Mining Inc.0.62%
Open IJJ or MDY 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 methodologyand 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.