GBP/USD Lot Size Calculator for AquaFunded

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GBP/USD is one of the most volatile major pairs, making position sizing crucial for survival. With its 110-pip average daily range, this pair can easily hit wider stops that other majors might not reach. This volatility is both opportunity and danger - Cable can give you quick profits but also quick losses if you're oversized. The 110-pip daily range means your stop losses need breathing room. Placing stops at 30-40 pips on GBP/USD is asking to get stopped out by normal market noise. I typically use 50-80 pip stops depending on the setup and timeframe, which directly impacts position sizing. Here's how the math works: On a $100k AquaFunded account risking 1% ($1,000), with a 60-pip stop, you divide $1,000 by $600 (60 pips × $10), giving you 0.167 lots maximum. Round down to 0.15 lots for safety. At 2% risk ($2,000) with the same 60-pip stop, you get 0.33 lots, which I'd round to 0.3 lots. For swing trades where I'm looking at the daily chart, I might use 80-100 pip stops, which obviously reduces position size further but gives the trade proper room to breathe. GBP/USD suits prop trading well because its volatility can help you hit profit targets faster, but you must respect that same volatility with proper sizing. The pair tends to trend well and gives clear technical levels, but those trends can reverse violently. Many traders blow accounts on Cable by treating it like EUR/USD - don't make that mistake. The key is accepting smaller position sizes in exchange for the pair's profit potential and staying well within AquaFunded's 5% daily loss limit.

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