GBP/USD, nicknamed 'Cable', is the exchange rate between the British pound and the US dollar. It's one of the oldest traded currency pairs, and while it doesn't match EUR/USD's raw volume, it's known among traders for moving faster and further on comparable news — making it popular with momentum and breakout traders, but riskier for beginners.
Primary Drivers
- ▸Bank of England policy decisions and the accompanying minutes/votes split.
- ▸UK inflation (CPI) and wage growth data, which shape BoE rate expectations.
- ▸UK GDP and PMI releases signaling economic momentum or slowdown.
- ▸Political developments — UK general elections, fiscal policy announcements (budgets), and historically Brexit-related headlines.
- ▸US-side drivers shared with EUR/USD: Fed policy, US inflation and employment data.
Why Cable Is More Volatile
Part of the reason GBP/USD swings more than EUR/USD is structural: London is the single largest forex trading hub in the world, and a huge share of GBP-related order flow — from corporations, hedge funds, and banks headquartered there — clears through London hours. That concentration, combined with a smaller base of GBP liquidity compared to EUR, means large orders move the price more.
Session Behavior
GBP/USD activity picks up sharply at the London open (around 07:00-08:00 UTC) and again during the London-New York overlap. The Asian session is typically thin and choppy for Cable, and breakouts that occur during Asian hours often fail once London traders arrive and fade the move.
Worked Example: Trading a BoE Surprise
GBP/USD trades at 1.2650 ahead of a Bank of England decision where the market expects a unanimous hold. Instead, the vote splits 6-3 with three members favoring a hike, signaling more hawkish intent than priced in. The pound rallies sharply as traders reprice the odds of a near-term hike.
| Step | Detail |
|---|---|
| Entry | Long at 1.2700 after the vote split is confirmed on the wires |
| Stop loss | 1.2660 (below the pre-decision consolidation) |
| Target | 1.2790 (prior swing high) |
| Risk:Reward | 40 pips risk vs 90 pips reward ≈ 1:2.25 |
GBP/USD's average true range is often 30-50% larger than EUR/USD's. Using the same position size across both pairs means taking meaningfully more risk on Cable — adjust size to the pair's typical range, not a fixed lot amount.
Correlations
GBP/USD moves with a moderate positive correlation to EUR/USD, since both are 'anti-dollar' pairs, but it decouples sharply during UK-specific events. EUR/GBP is the cleanest way to isolate pure pound strength or weakness without dollar interference.