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PSX vs XOM

A side-by-side look at PSX and XOM, updated throughout the trading session.

Performance, normalized

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

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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.