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ETF comparison

SPY vs VOO

Both US Large Cap.

State Street SPDR S&P 500 ETF Trust · Vanguard S&P 500 ETF

Holdings overlap

Weighted by ISIN/CUSIP
92.2 %

495 positions appear in both funds. Buying equal dollars of SPY and VOO would leave roughly 92.2% of each dollar exposed to the same underlying securities.

SPY unmatched 7.8% Shared 92.2% VOO unmatched 7.6%

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 SPY only
10 positions
Shared
495 positions
In VOO only
9 positions

Side by side

SPY

State Street SPDR S&P 500 ETF Trust

State Street · US Large Cap

88 composite / 100
Expense ratio
0.094%
Net assets
$809.22B
TTM yield
1.00%
Top-10 conc.
37.9%
VOO

Vanguard S&P 500 ETF

Vanguard · US Large Cap

91 composite / 100
Expense ratio
0.030%
Net assets
$1.73T
whole fund, 4 share classes
TTM yield
1.06%
Top-10 conc.
36.4%

Sub-score comparison

91
Cost
97
89
Tax efficiency
88
100
Liquidity
100
60
Concentration
62
—
Tracking quality
—
SPY sub-score VOO

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

Cost difference

VOO is 6 bps cheaper than SPY. On a $100,000 position that's about $64/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 SPY vs VOO.

Top shared holdings

495 shared in total
# Holding In SPY In VOO Overlap
1 NVIDIA CORP 8.50% 7.51% 7.51%
2 APPLE INC 7.32% 6.59% 6.59%
3 MICROSOFT CORP 5.77% 4.30% 4.30%
4 AMAZON.COM INC 3.71% 3.62% 3.62%
5 ALPHABET INC CL A 3.03% 3.25% 3.03%
6 BROADCOM INC 2.54% 2.77% 2.54%
7 ALPHABET INC CL C 2.43% 2.59% 2.43%
8 META PLATFORMS INC CLASS A 2.41% 1.92% 1.92%
9 MICRON TECHNOLOGY INC 1.82% 2.02% 1.82%
10 TESLA INC 1.57% 1.84% 1.57%
11 ADVANCED MICRO DEVICES 1.55% 1.47% 1.47%
12 BERKSHIRE HATHAWAY INC CL B 1.41% 1.42% 1.41%

Only in SPY

10 total
  • EXXONMOBIL HOLDINGS CORP 1.01%
  • BLOOM ENERGY CORP A 0.13%
  • ONEOK INC 0.08%
  • EVERPURE INC A 0.07%
  • VYLOR INC 0.07%
  • FERGUSON ENTERPRISES INC 0.06%
  • ILLUMINA INC 0.06%
  • REDDIT INC CL A 0.03%
  • AMCOR PLC 0.03%
  • TPG INC 0.00%

Only in VOO

9 total
  • Exxon Mobil Corp 0.88%
  • ONEOK Inc 0.08%
  • Electronic Arts Inc 0.07%
  • AvalonBay Communities Inc 0.04%
  • Amcor PLC 0.03%
  • Builders FirstSource Inc 0.01%
  • Trade Desk Inc/The 0.01%
  • Molson Coors Beverage Co 0.01%
  • Conagra Brands Inc 0.01%

Percentages are holdings overlap with the named fund.

Open SPY or VOO 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.