Both in null

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

Over the past year VOO returned +15.1% and SPY returned +15.1%; their daily moves had a correlation of 1.00.

VOO +15.1% SPY +15.1%Growth of $1, one year, split-adjusted
MetricVOOSPY
Price$702.46$764.20
Market cap$1.05T$815.23B
Today−0.16%−0.18%
1 month−0.7%−0.7%
6 months+20.9%+20.9%
Year to date+12.0%+12.1%
1 year+15.1%+15.5%
Revenue growth (YoY)——
Gross margin——
Net margin——
P/E (TTM)——
Price / sales——
Net cash——
Dividend yield1.04%0.99%
Volatility (60d)11.1%11.1%
Short % of float——
Next earnings——

Shading marks the stronger figure where one clearly exists (lower is better for valuation and volatility).

VOO vs SPY: Vanguard S&P 500 ETF vs State Street SPDR S&P 500 ETF Trust Stock Comparison | Gainbot