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

Over the past year VXF returned +11.5% and SPY returned +11.2%; their daily moves had a correlation of 0.88.

VXF +11.5% SPY +11.2%Growth of $1, one year, split-adjusted
MetricVXFSPY
Price$234.26$759.81
Market cap$30.74B$806.11B
Today+1.08%+1.32%
1 month+0.7%−2.3%
6 months+2.9%+2.4%
Year to date+12.0%+11.4%
1 year+11.4%+11.5%
Revenue growth (YoY)——
Gross margin——
Net margin——
P/E (TTM)——
Price / sales——
Net cash——
Dividend yield0.96%0.99%
Volatility (60d)18.5%14.9%
Short % of float——
Next earnings——

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