Let us know what your broker is quoting

Spreads are beginning to widen in GBP trading.

Looking at intrabank quotes, I see spreads ranging from 2 pips to 13 pips, sometimes from the same bank within seconds.

Let us know what your broker is showing, and (if possible) if it's actually executable.

Over the next few hours, expect liquidity to continue falling and spreads to rise. Reuters reports that Barclays has killed all stop loss orders in its system and won't allow new ones to be placed.

Other banks have done the same:

Swiss bank UBS, another of the big six lenders that dominate the $5 trillion a day currency market, warned clients earlier this week it may fail to execute some orders on its electronic trading platform should the referendum affect liquidity or cause extreme volatility.

A note to clients from Bank of America Merrill Lynch, the currency market's fifth largest player, warned of a number of service disruptions.

"BofAML's electronic trading platforms have volatility controls that may temporarily suspend execution and price streaming in response to rapid and adverse market movements," the communication said.