Trading in FTSE 100 and 250 stocks has reopened after a software issue that delayed the starting bell this morning was resolved. The London Stock Exchange (LSE) said it had “experienced a technical software issue” that had “affected trading in certain securities” but that this had been resolved. Read more: London stock exchange seals $27bn Refinitiv deal Trading in shares in the UKs biggest 350 companies resumed at 9.40am, over an hour and a half between the usual 8am starting time. City A.M. understands futures trades data was still coming through to traders screens, but that cash equity trading in blue-chip and mid-cap shares had not begun as usual. David Madden, an analyst at CMC Markets, said earlier that he had not received any official notice and no time frame when the issue would be resolved. Outages on the stock exchange are relatively common. This is the second time in 18 months that the London Stock Exchange has suffered a technical fault. Last time, the exchange was d..