Arrow Electronics Inc, the big electronic parts distributor, is in favour with Standard & Poor’s Corp, which says it may raise its rating on the company’s $125m subordinated debt from the present B-plus. The ratings agency said the company’s first quarter results reflect its continuing profit improvements and balance sheet strength, adding that the review will also assess the possibility of an upgrade to an implied senior debt rating in the investment grade category. The implied senior rating is double-B, and the lowest investment grade rating in Standard & Poor’s book is triple-B-minus.