JPMorgan and Morgan Stanley increase share buybacks, while rivals make smaller moves,The large banks reported plans to help gets back to investors subsequent to passing the Central bank's yearly pressure test this week. While each of the 31 banks in the current year's test showed controllers they could climate a serious speculative downturn, JPMorgan said Wednesday it could have higher misfortunes than the Fed at first assessed. In any case, that wouldn't influence the capital return plan, the New York-based bank said Friday.