Traders Get New Gauge of `Brexit’ Risk With Vote 3 Months Away

Next Wednesday marks exactly three months until Britain’s referendum on its European Union membership. That gives another opportunity for...

Next Wednesday marks exactly three months until Britain’s referendum on its European Union membership. That gives another opportunity for an insight into how concerned pound traders are about the outcome.

The benchmark three-month gauge of volatility in sterling versus the dollar will cover the June 23 vote for the first time next week, giving traders another instrument to protect themselves against price swings. With surveys still pointing to the ‘remain’ and ‘leave’ camps running neck and neck, a six-month measure is about 1 percentage point from a five-year high reached last month.

If the ‘leave’ camp gains further ground and “it seriously looks like a ‘Brexit’ I would suggest volatility moves above 20 percent,” a level last seen in 2009, said Neil Jones, the London-based head of hedge-fund sales at Mizuho Bank Ltd. “If we sense a shift in the opposite direction towards the ‘in’ camp, then three-month sterling volatility would be hit hard as the urge to hedge uncertainty would be reduced substantially.”

While sterling has recovered from the seven-year low against the dollar reached last month, it’s still the worst performer since the start of this year among Group-of-10 peers. The pound has borne the brunt of not just traders doubting the Bank of England’s ability to tighten policy but also the uncertainty surrounding the U.K.’s EU membership. The BOE warned this week that an exit may hurt spending and hold back Britain’s economic growth.

The pound climbed for a third week versus the dollar, rising 0.7 percent to $1.4488 as of 5:05 p.m. in London Friday. It dropped to $1.3836 on Feb. 29. Sterling weakened 0.3 percent in the week to 77.78 pence per euro, and slid 1.3 percent against the yen.

Volatility Climbs

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Three-month implied volatility, a measure of price swings based on options, climbed 78 basis points, or 0.78 percentage point, this week to 10.70 percent. The measure reached 11.89 percent on Feb. 24, the highest on a closing-price basis since April 2, with six-month volatility touching 13.64 percent the same day.

“Presumably the three-month will be pushing up” to 11 percent or more next week, said Chris Turner, London-based head of currency strategy at ING Groep NV. Turner remains bearish on the pound and forecasts “euro-sterling to be trading close to 80 pence ahead of the referendum in June.”

U.K. government bonds rose for the first time in three weeks after the Federal Reserve lowered its path for interest-rate increases, boosting fixed-income assets. Benchmark 10-year gilt yields fell 13 basis points to 1.45 percent. The 2 percent security due in September 2025 gained 1.135, or 11.35 pounds per 1,000-pound face amount, to 104.86.

To contact the reporter on this story: Anooja Debnath in London at To contact the editors responsible for this story: David Goodman at, Keith Jenkins

By: Anooja Debnath

©2016 Bloomberg News

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