Magna
Economists are expecting the IHS Market figure to come in at 54.5, a slowdown from September's figure of 55.4. The PMI reading, given between 0-100, measures activity in the sector - anything above 50 signals growth, while anything below means contraction.
Michael Hewson, the chief market commentator at CMC Markets, says in his morning email on Tuesday: "In September the manufacturing sector in the UK experienced a Lazarus-like rebound at the end of the quarter, jumping to 55.4, having been in contraction at the beginning of the quarter. "
"In October the expectation is slightly more modest but nonetheless we still expect to see a decent number of 54.6."(Note, the 54.5 figure we're citing is an average taken among economists and forecasters.)
Keep refreshing this page to get the numbers as they come in.