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ETF comparison

IJJ vs IWR

Both US Mid Cap.

iShares S&P Mid-Cap 400 Value ETF · iShares Russell Mid-Cap ETF

Holdings overlap

Weighted by ISIN/CUSIP
14.7 %

231 positions appear in both funds. Buying equal dollars of IJJ and IWR would leave roughly 14.7% of each dollar exposed to the same underlying securities.

IJJ unmatched 84.7% Shared 14.7% IWR unmatched 85.1%

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.

In IJJ only
68 positions
Shared
231 positions
In IWR only
593 positions

Side by side

IJJ

iShares S&P Mid-Cap 400 Value ETF

iShares · US Mid Cap

89 composite / 100
Expense ratio
0.18%
Net assets
$8.33B
TTM yield
1.64%
Top-10 conc.
10.1%
IWR

iShares Russell Mid-Cap ETF

iShares · US Mid Cap

90 composite / 100
Expense ratio
0.18%
Net assets
$54.90B
TTM yield
1.16%
Top-10 conc.
5.6%

Sub-score comparison

82
Cost
82
87
Tax efficiency
88
97
Liquidity
100
100
Concentration
100
—
Tracking quality
—
IJJ sub-score IWR

Tracking quality isn't part of the composite — see what we don't score for why.

Cost difference

Expense ratios are effectively identical (0.18% vs 0.18%).

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 IWR.

Top shared holdings

231 shared in total
# Holding In IJJ In IWR Overlap
1 MKS, Inc. 0.50% 0.22% 0.22%
2 Entegris, Inc. 0.95% 0.20% 0.20%
3 Illumina, Inc. 0.70% 0.19% 0.19%
4 US Foods Holding Corp. 1.29% 0.16% 0.16%
5 Lattice Semiconductor Corp. 0.49% 0.15% 0.15%
6 TD SYNNEX Corp. 1.15% 0.15% 0.15%
7 Burlington Stores, Inc. 0.45% 0.14% 0.14%
8 Reliance, Inc. 1.10% 0.14% 0.14%
9 Onto Innovation, Inc. 0.56% 0.14% 0.14%
10 Nextpower, Inc. 0.36% 0.13% 0.13%
11 East West Bancorp, Inc. 0.50% 0.13% 0.13%
12 Roivant Sciences Ltd. 0.38% 0.12% 0.12%

Only in IJJ

68 total
  • UMB Financial Corp. 0.59%
  • Old National Bancorp 0.51%
  • Terex Corp. 0.48%
  • Fluor Corp. 0.42%
  • Valley National Bancorp 0.40%
  • Commercial Metals Co. 0.40%
  • Taylor Morrison Home Corp. 0.38%
  • Glacier Bancorp, Inc. 0.38%
  • Janus Henderson Group plc 0.37%
  • United Bankshares, Inc. 0.36%

Only in IWR

593 total
  • Datadog, Inc. 0.62%
  • Snowflake, Inc. 0.61%
  • Royal Caribbean Cruises Ltd. 0.58%
  • Cloudflare, Inc. 0.56%
  • Robinhood Markets, Inc. 0.56%
  • Teradyne, Inc. 0.55%
  • Marathon Petroleum Corp. 0.54%
  • Astera Labs, Inc. 0.53%
  • Simon Property Group, Inc. 0.52%
  • United Rentals, Inc. 0.51%

Percentages are holdings overlap with the named fund.

Open IJJ or IWR 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.