Cable — GBPUSD — is the most volatile of the majors. Average daily range: 90-120 pips. On big news days it's 200+. That volatility is where the money is, but it's also where new traders get destroyed. Here's the field guide.
Why cable moves like it does
GBP is thin. There are far fewer GBP holders globally than EUR or JPY. Thin books mean bigger moves per unit of order flow. When a large fund rebalances into or out of GBP, cable can move 40 pips in three minutes.
USD adds fuel: the world's most-traded currency on one side, one of the smaller majors on the other, means every US data release moves cable more than EURUSD.
The sessions that matter
- 07:00-11:00 UTC (London). 60% of daily range happens here. UK data drops at 07:00 and 09:30. GBP funds are active.
- 12:30-15:30 UTC (NY overlap). US data extends the London move — or reverses it.
- 16:00-22:00 UTC (NY late). Thin books. Slippage risk. Skip unless you're managing a runner.
- 22:00-07:00 UTC (Asia). Wide spreads, small range. No trades.
Spread traps
Cable spread widens dramatically around news and outside London hours. 07:00 UTC (UK open): spread can jump from 1 pip to 8 pips for 30 seconds. Anyone trading with tight stops gets flushed.
Rule: don't set a stop within 8-10 pips of price when trading cable around UK data. Give it room, or don't enter.
News windows to avoid
Never enter cable in the 15 minutes before or 30 minutes after:
- UK CPI, GDP, employment (all 07:00 or 09:30 UTC)
- BoE rate decisions (11:00-12:00 UTC on the day)
- US NFP (12:30 UTC first Friday)
- FOMC (18:00-18:30 UTC on decision day)
These aren't opinion — they're mechanical rules. Cable slippage on these releases regularly exceeds 15 pips. Any trade you enter is basically a coin flip on which stop gets hit.
Cable rewards traders who wait. The London breakout at 08:00 UTC is one of the highest-probability setups in FX. Everything else is negotiation.
Position sizing
If you use 1% risk on EURUSD, use 0.75% on cable. The ATR is 40-50% higher. Same dollar risk = smaller position size. This is basic volatility-normalized sizing that most retail traders skip.
Our terminal auto-adjusts suggested lot size based on 20-day ATR. Just enter your risk % and it does the volatility scaling.
The setup that works
Wait for a clean London break of the Asian range (usually formed 22:00-06:00 UTC). Enter on retest of the broken edge with a bullish/bearish H1 reversal candle. Stop just inside the range. Target 1: 1.5x range width. Target 2: 2.5x.
That single pattern accounts for the majority of profitable cable trades week over week.
Educational content only. Not financial advice.
