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Does Relative Strength Index Agree on ES and GBPUSD? (15-minute Charts)

Educational reference. Measured from recorded market data through September 5, 2026. Not a forecast.

Relative Strength Index measures where price sits within its own recent gains and losses. This page asks a narrower question than the price comparison: when Relative Strength Index moves on E-mini S&P 500, does it move the same way on British Pound / U.S. Dollar?

A LiveCharts.AI chart with several indicator panels
Bars where Relative Strength Index moved on both1,854
… and moved the same direction1,006  (54.3%)
Price correlation, same period+0.446
Relative Strength Index disagrees more than price does. Prices correlate at +0.446, which would suggest agreement near 65%. Relative Strength Index manages 54.3%. The two markets move together while this reading does not — the gap is where a divergence setup would show up.

Why this is not the same as the price question

Two markets can move together while their momentum, trend strength or volatility do not. A reading that agrees far less than price suggests is exactly where one market is losing steam while the other keeps going — and a reading that agrees more is tracking something shared that direction alone does not capture.

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