Ally Financial Inc. is bringing $1.52 billion in asset-backed securities to market in a deal that’s expected to close Sept. 25. The deal is Ally’s second this year, and 23rd overall. Ally’s weighted Fico score increased to 749.6, up from 745.8, according to a Standard & Poor’s presale report. The weighted loan-to-value ratio increased to 97.8 from 95.8, and the percentage of used vehicles grew to 33.4%, up from 26.1%. As of June 30, Ally bank had 1.73 million retail contracts outstanding.