GBP/USD: The Story Behind 'Cable'
Why traders call the British pound vs. dollar 'Cable' — and what makes it one of the most volatile majors.
Why "Cable"?
GBP/USD has a nickname: Cable. It comes from the transatlantic telegraph cable laid in 1858 between London and New York, which carried the live exchange rate between the two financial capitals. The name stuck for over 165 years.
A volatile major
GBP/USD is technically a "major" pair, but it routinely moves more than EUR/USD or USD/CHF. Why?
- Smaller economy behind it than the eurozone.
- Heavier political risk — Brexit, leadership changes, fiscal events.
- Outsized financial-services share of the U.K. economy makes the pound sensitive to global sentiment.
What moves Cable
- Bank of England decisions and inflation surprises.
- Fed–BoE rate divergence.
- U.K. fiscal events — budgets, mini-budgets (the 2022 Truss episode is the textbook).
- Brexit-era trade developments — even years on, headlines still move it.
- Risk sentiment — Cable tends to rise in risk-on, fall in risk-off, but less reliably than AUD/USD.
Historical context
The pound was the world's reserve currency until World War II. At its peak in the 1860s, GBP/USD was around 5.00 — meaning one pound bought five dollars. Today's range of 1.20–1.40 is a long, slow story of relative U.S. ascendance.
A practical guide for travelers
- Cable above 1.30 means American visitors to the U.K. find prices reasonable.
- Cable below 1.20 makes London feel surprisingly affordable for Americans.
- For Brits visiting the U.S., a high Cable is a windfall and a low one is a budget squeeze.
Key takeaways
- GBP/USD is nicknamed "Cable" after the 1858 transatlantic telegraph.
- It moves more than other majors due to political and fiscal sensitivity.
- The Bank of England's decisions dominate its medium-term direction.
- Knowing Cable's level is essential for anyone trading or traveling between the U.K. and U.S.