Corporate Credit Rating: BBB+/Negative/A-2 The AutoZone Inc. Board of Directors' approval of a $100 million increase in the company's current share repurchase program has no impact on the company's credit rating or outlook. The total value of the program is $1.35 billion, of which $1.15 billion has been repurchased to date (including forward commitments). Standard&Poor's had already factored the increased authorization into the ratings and expects the program to be completed within the context of the current ratings.