Barclays tomorrow is the second of the high street banks to issue third-quarter numbers. HSBC got the season off to a mixed start on Tuesday and attention will focus on Barclay's investment bank arm (Lehman Bros in effect) and if it can continue its recent good performance. Activist investor Sherborne has previously tried to get the bank to divest the business to no avail so far, but any trip-ups and the issue might raise its head again.