GBP/USD is currently trading at 1.3457, having hit a 19-month high of 1.3515 in early Asia due to the UK election exit polls predicting a big win for the incumbent Prime Minister Boris Johnson.
The pair's 14-day relative strength index (RSI) is now hovering at 80.47, the highest level since January 2018. An above 70-reading indicates overbought conditions.