cardinal health on thursday said its board approved an additional 35 billion of share repurchases through 2027 boosting the companys buyback capacity to 475 billion the dublin ohio healthcare services and products company said it expects to buy back at least 2 billion worth of stock over the next three years cardinal which had about 2546 million shares outstanding as of april 30 sports a market capitalization of nearly 215 billion the company spent 15 billion on shares repurchases during the nine months ended march 31