Last chance to buy Apple before it goes ex-dividend by Philip Elmer-DeWitt @FortuneMagazine May 8, 2013, 3:30 PM EDT E-mail Tweet Facebook Google Plus Linkedin Share icons FORTUNE — Apple AAPL announced April 23 that it was increasing its stock repurchase plan five-fold and raising its annual dividend 15%. The first dividend pay date under the new formula is May 16 for shares on record as of May 13. Which means the stock goes ex-dividend on May 9. All that is a long, complicated and unnecessarily obscure way to say that if you want to collect this quarter’s dividend of $3.05 a share, today is your last chance to buy the stock. Since Apple announced the increased dividend and stock buyback plan, its shares have climbed more than 18%.