GBP/USD is not showing any signs of an imminent break of daily ranges. However, the 4-hour chart's imbalance between spot and 1.33 the figure is compelling.
The following illustrates the market structures from a weekly down to a 4-hour perspective.

As illustrated, the price is not giving any signals from a daily perspective, trapped in a range of consolidation.

The weekly chart shows that there is a firm area of support at this juncture. Therefore, it is typical that the price will struggle to breakout to the downside before enough supply has been allocated in the market.

The 4-hour chart shows that the price is trying to mitigate the imbalance with today's spike to test resistance. On the break of resistance, there is room to go until 1.33 the figure and some change.