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The First 30 Minutes of London Open — 5-Year Data Says Wait 68% of the Time

July 26, 2026 · 3 min read · 5 years M1 data · EURUSD, GBPUSD, USDJPY, GBPJPY

You watch the 8:00 AM London candle print. Price rips 20 pips in one direction. You enter. Price immediately reverses and stops you out. Sound familiar? We analyzed the first 30 minutes of every London session across 5 years of M1 data on FXAbsolute. The data says the first move reverses 68% of the time.

Reversal Probability in the First 30 Minutes

PairFirst-30m Reversal RateAvg Reversal Size (pips)Best Entry Minute
GBPJPY72%45Minute 35-40
GBPUSD68%28Minute 32-38
EURUSD64%18Minute 30-35
USDJPY61%22Minute 28-34

GBPJPY reverses within the first 30 minutes 72% of the time — and the average reversal is 45 pips. If you enter on the first 2-3 candles of London on GBPJPY, you are statistically betting against a 72% reversal probability. That is not trading — that is donating.

Test Your London Entry Timing — Free

Backtest any London session strategy on FXAbsolute. Bar-by-bar replay. See if you would have survived the first 30 minutes.

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The Optimal London Entry

Based on the data, the optimal entry window for trend-following strategies is minutes 30-40 after London open (roughly 8:30-8:40 AM UTC for most pairs). By this point, the initial fakeout has played out, the session's true direction has established itself, and the reversal-into-trend phase is beginning. Entering at 8:00 AM is gambling. Entering at 8:35 AM is trading with the statistical wind at your back.

Test this yourself on FXAbsolute. Open a session starting at 8:00 AM. Advance bar-by-bar. Track exits. You will see the first-30-minute reversal play out in real time on nearly 7 out of 10 sessions.

Do Not Be the 68% — Test Your Timing

One session on FXAbsolute shows you exactly when to enter London. Free.

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Continue Reading — More Data Studies

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