The Sterling dropped to a session low on Thursday, while gilt futures advanced after data from the ONS showed an unexpected drop in the U.K. retail sales, as consumers cut their spending on household appliances, fuel and clothing. Retail sales, which are the primary measure of consumer spending, fell 0.7% between September and October, while still posting a 1.8% gain on an annual basis. Core retail that excludes fuel sank 0.6% on a month and inched higher 2.3% from the same period a year earlier. What is more important is that all indicators came short of analysts' expectations. The ONS also stressed out that the recent drop ended a strong run of shopping data, and points that the trend in the autumn was almost flat.