VOO vs SPY

A side-by-side look at VOO and SPY, updated throughout the trading session.

VOOVOO Open VOO on Vela

SPYSPY Open SPY on Vela

Performance, normalized

Z-scored closes: both paths on one scale, price levels aside.

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VOO vs SPY: how they differ

Vanguard S&P 500 ETF (VOO) and State Street SPDR S&P 500 ETF (SPY) are both exchange-traded funds. Both trade on AMEX.

VOO trades about 7.5 million shares a day on average, against 45.4 million for SPY. Their betas are similar (1.01 for VOO, 1.01 for SPY). Over the trailing twelve months, VOO paid $7.43 per share in distributions and SPY paid $7.58 per share.

Figures as of October 26, 2026.

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The chart Z-score-normalizes each closing series, computing (close − mean) ÷ standard deviation over the window, so both paths share one scale regardless of price level, and correlation is computed on daily returns. Figures update throughout the trading session. Nothing on this page is financial advice.