SPY vs VOO

Compare what the funds own and how their adjusted prices behaved. Every result below identifies the observed period and the amount of holdings data represented.

Reported overlap
75.6%
High Overlap · medium confidence
SPY holdings coverage
99.9%
502 reported positions · Not supplied
VOO holdings coverage
82.8%
462 reported positions · 2026-01-02
This comparison has medium confidence because at least one holdings file is partial. Treat 75.6% as the known minimum, not as the complete overlap.

Reported exposure intersection

SPY
VOO
75.6%
SPY Only
Overlap
VOO Only

Price Performance

Historical price comparison over 3M

SPY Return
+9.68%
VOO Return
+9.68%
Winner
VOO
+0.00%
Max Drawdown
SPY: -4.5%
VOO: -4.5%
SPY Volatility (annualized)12.83%
VOO Volatility (annualized)12.72%

Latest adjusted-close observations: SPY 2026-08-21 · VOO 2026-08-21.

Comparison

Metric
SPY
VOO
1 Year Return
+21.8%
+21.9%
3 Year Return
+21.8%
+21.9%
5 Year Return
+13.1%
+13.1%
Volatility
17.97%
18.03%
Calculated from available adjusted-close observations. Missing periods are shown as N/A. Past performance does not guarantee future results.

⚠️Risk Metrics

Metric
SPY
VOO
Volatility
17.97%
18.03%
Sharpe Ratio
0.63
0.63
Sortino Ratio
0.59
0.59
Max Drawdown
-33.72%
-33.99%
Beta
1.00
1.00

Interpretation:

  • Lower volatility = smoother ride
  • Higher Sharpe/Sortino = better risk-adjusted returns
  • Smaller max drawdown = less worst-case pain
  • Beta > 1 = more volatile than S&P 500

Risk metrics use the available common observations, a 4% annual risk-free assumption and SPY as the beta benchmark.

Shared reported holdings

444 positions account for a known minimum overlap of 75.6%.

Top Shared Holdings

#StockSPY WeightVOO WeightOverlap
1
NVDA
NVDA
7.90%7.37%7.37%
2
AAPL
AAPL
6.79%7.07%6.79%
3
MSFT
MSFT
5.64%6.24%5.64%
4
AMZN
AMZN
4.08%3.86%3.86%
5
GOOGL
GOOGL
3.14%3.18%3.14%
6
AVGO
AVGO
3.00%3.24%3.00%
7
GOOG
GOOG
2.52%2.55%2.52%
8
META
META
1.96%2.40%1.96%
9
BRK-B
BRK-B
1.46%1.61%1.46%
10
LLY
LLY
1.46%1.46%1.46%

Overlap by Sector

Technology
15 stocks · 31.72% overlap
Other
362 stocks · 22.01% overlap
Consumer Discretionary
7 stocks · 6.02% overlap
Healthcare
12 stocks · 4.47% overlap
Financials
11 stocks · 4.44% overlap

Showing top 5 sectors by overlap contribution

444
Shared Stocks
75.6%
Total Overlap
5
Sectors Represented

Largest positions reported only in SPY

Scroll horizontally to see all data
SymbolNameWeight
MUMU1.46%
AMDAMD1.15%
CSCOCSCO0.73%
INTCINTC0.69%
AMATAMAT0.62%

Largest positions reported only in VOO

Scroll horizontally to see all data
SymbolNameWeight
MMCMMC0.15%
BKBK0.13%
EAEA0.08%
CTRACTRA0.03%
HOLXHOLX0.03%

Price Correlation

What this report can and cannot establish

Known overlap: for each shared security, we add the smaller reported fund weight. Reported weights remain in their original scale.

Possible overlap: the upper bound adds only the smaller unreported portion. It is uncertainty, not an estimate that the missing positions actually match.

Prices: returns and risk use adjusted-close observations, so distributions and splits are reflected when supplied by the market-data source.

No recommendation: EigenDex does not assign a winner. Costs, tax treatment, liquidity and mandate should be verified with each issuer before acting.

Related research notes