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ETF comparison

BBMC vs SPY

US Mid Cap vs US Large Cap.

JPMorgan BetaBuilders U.S. Mid Cap Equity ETF · State Street SPDR S&P 500 ETF Trust

Holdings overlap

Weighted by ISIN/CUSIP
1.6 %

70 positions appear in both funds. Buying equal dollars of BBMC and SPY would leave roughly 1.6% of each dollar exposed to the same underlying securities.

BBMC unmatched 97.5% Shared 1.6% SPY unmatched 98.3%

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 BBMC only
392 positions
Shared
70 positions
In SPY only
434 positions

Side by side

BBMC

JPMorgan BetaBuilders U.S. Mid Cap Equity ETF

JPMorgan · US Mid Cap

88 composite / 100
Expense ratio
0.070%
Net assets
$2.11B
TTM yield
1.13%
Top-10 conc.
6.3%
SPY

State Street SPDR S&P 500 ETF Trust

State Street · US Large Cap

88 composite / 100
Expense ratio
0.094%
Net assets
$796.87B
TTM yield
1.01%
Top-10 conc.
37.3%

Sub-score comparison

93
Cost
91
88
Tax efficiency
88
71
Liquidity
100
100
Concentration
61
—
Tracking quality
—
BBMC sub-score SPY

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

Cost difference

BBMC is 2 bps cheaper than SPY. On a $100,000 position that's about $24/yr more in fees for SPY.

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 BBMC vs SPY.

Top shared holdings

70 shared in total
# Holding In BBMC In SPY Overlap
1 Moderna, Inc. 0.42% 0.14% 0.14%
2 Williams-Sonoma, Inc. 0.58% 0.05% 0.05%
3 Okta, Inc. 0.52% 0.05% 0.05%
4 Casey's General Stores, Inc. 0.70% 0.04% 0.04%
5 Qnity Electronics, Inc. 0.59% 0.04% 0.04%
6 Tapestry, Inc. 0.66% 0.04% 0.04%
7 Viatris, Inc. 0.43% 0.03% 0.03%
8 Best Buy Co., Inc. 0.36% 0.03% 0.03%
9 Skyworks Solutions, Inc. 0.20% 0.03% 0.03%
10 Ball Corp. 0.35% 0.03% 0.03%
11 Host Hotels & Resorts, Inc. 0.37% 0.03% 0.03%
12 Revvity, Inc. 0.27% 0.03% 0.03%

Only in BBMC

392 total
  • Natera, Inc. 0.79%
  • Revolution Medicines, Inc. 0.75%
  • TechnipFMC plc 0.58%
  • Curtiss-Wright Corp. 0.58%
  • Carpenter Technology Corp. 0.55%
  • ATI, Inc. 0.54%
  • nVent Electric plc 0.53%
  • XPO, Inc. 0.51%
  • US Foods Holding Corp. 0.48%
  • Tenet Healthcare Corp. 0.47%

Only in SPY

434 total
  • APPLE INC 7.69%
  • NVIDIA CORP 7.30%
  • MICROSOFT CORP 6.22%
  • AMAZON.COM INC 3.94%
  • ALPHABET INC CL A 2.56%
  • BROADCOM INC 2.33%
  • META PLATFORMS INC CLASS A 2.09%
  • ALPHABET INC CL C 2.06%
  • ELI LILLY + CO 1.71%
  • TESLA INC 1.64%

Related comparisons

More comparisons with BBMC

More comparisons with SPY

Percentages are holdings overlap with the named fund.

Open BBMC or SPY 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.