ETF comparison

SPYvsVOO

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%

499 positions appear in both funds. Buying equal dollars of SPY and VOO would leave roughly92.2%of each dollar exposed to the same underlying securities.

SPY only 7.6%Shared 92.2%VOO only 7.6%
In SPY only
5 positions
Shared
499 positions
In VOO only
5 positions

Side by side

SPY

State Street SPDR S&P 500 ETF Trust

State Street · US Large Cap

88composite / 100
Expense ratio
0.094%
Net assets
$811.94B
TTM yield
0.99%
Top-10 conc.
38.0%
VOO

Vanguard S&P 500 ETF

Vanguard · US Large Cap

91composite / 100
Expense ratio
0.030%
Net assets
$1.76T
TTM yield
1.05%
Top-10 conc.
36.4%

Sub-score comparison

91
Cost
97
89
Tax efficiency
88
100
Liquidity
100
60
Concentration
62
Tracking quality
SPYsub-scoreVOO

Tracking quality isn't part of the composite — seewhat we don't scorefor 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 thecost calculator pre-filled with SPY vs VOO.

Top shared holdings

499 shared in total
#HoldingIn SPYIn VOOOverlap
1NVIDIA CORP8.29%7.51%7.51%
2APPLE INC7.22%6.59%6.59%
3MICROSOFT CORP5.68%4.30%4.30%
4AMAZON.COM INC3.80%3.62%3.62%
5ALPHABET INC CL A3.01%3.25%3.01%
6BROADCOM INC2.53%2.77%2.53%
7ALPHABET INC CL C2.40%2.59%2.40%
8META PLATFORMS INC CLASS A2.01%1.92%1.92%
9MICRON TECHNOLOGY INC1.62%2.02%1.62%
10TESLA INC1.59%1.84%1.59%
11BERKSHIRE HATHAWAY INC CL B1.40%1.42%1.40%
12ELI LILLY + CO1.37%1.47%1.37%

Only in SPY

5 total
  • EXXONMOBIL HOLDINGS CORP1.01%
  • FERGUSON ENTERPRISES INC0.06%
  • AMCOR PLC0.03%
  • REDDIT INC CL A0.03%
  • CONTRA HOLOGIC INCORPO0.00%

Only in VOO

5 total
  • Exxon Mobil Corp0.88%
  • Electronic Arts Inc0.07%
  • AvalonBay Communities Inc0.04%
  • Amcor PLC0.03%
  • Conagra Brands Inc0.01%

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 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.