Square valuation shaved by more than $2bn as IPO share price drops

Conservative price of $11 and $13 a share for company that deals in mobile debit and credit payment raises eyebrows across Silicon ValleyTwitter chief executive Jack Dorsey’s other company, Square, has seen at least a third shaved off its 2014 valuation at $6bn, resulting in an IPO share price of between $11 and $13 a share. To make up the shortfall, the company may have to issue extra stock to preferred shareholders.As more and more “unicorn” companies come under scrutiny for