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ETF comparison

IJK vs IJR

US Mid Cap vs US Small Cap.

iShares S&P Mid-Cap 400 Growth ETF · iShares Core S&P Small-Cap ETF

Holdings overlap

Weighted by ISIN/CUSIP
0.0 %

0 positions appear in both funds. Buying equal dollars of IJK and IJR would leave roughly 0.0% of each dollar exposed to the same underlying securities.

IJK unmatched 99.9% Shared 0.0% IJR unmatched 97.7%

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 IJK only
243 positions
Shared
0 positions
In IJR only
603 positions

Side by side

IJK

iShares S&P Mid-Cap 400 Growth ETF

iShares · US Mid Cap

91 composite / 100
Expense ratio
0.16%
Net assets
$10.29B
TTM yield
0.59%
Top-10 conc.
14.4%
IJR

iShares Core S&P Small-Cap ETF

iShares · US Small Cap

95 composite / 100
Expense ratio
0.060%
Net assets
$102.56B
TTM yield
1.23%
Top-10 conc.
10.8%

Sub-score comparison

84
Cost
94
89
Tax efficiency
88
100
Liquidity
100
94
Concentration
99
—
Tracking quality
—
IJK sub-score IJR

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

Cost difference

IJR is 10 bps cheaper than IJK. On a $100,000 position that's about $100/yr more in fees for IJK.

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 IJK vs IJR.

Top shared holdings

0 shared in total

No shared holdings between these funds.

Only in IJK

243 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%

Only in IJR

603 total
  • FORMFACTOR INC 0.67%
  • VIASAT INC 0.66%
  • MOLINA HEALTHCARE INC 0.64%
  • ARGAN INC 0.60%
  • BRIGHTSPRING HEALTH SERVICES INC 0.60%
  • ELEMENT SOLUTIONS INC 0.59%
  • MAXLINEAR INC 0.58%
  • KRYSTAL BIOTECH INC 0.53%
  • ESCO TECHNOLOGIES INC 0.49%
  • MATCH GROUP INC 0.48%

Related comparisons

More comparisons with IJK

More comparisons with IJR

Percentages are holdings overlap with the named fund.

Open IJK or IJR at a brokerage

Both funds trade commission-free at major US brokerages.

Open at Fidelity

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.