Boston Scientific Corp. responded to "reports speculating" that it was approached by Stryker Corp. regarding a potential acquisition with a simple statement: "Consistent with its practice, the company does not comment on market rumors or speculation. The medical devices company made the state in a filing with the Securities and Exchange Commission. The stock surged 7.4% to close at the highest level since Feb. 3, 2005, giving the company a market capitalization of $47.36 billion. Meanwhile, Stryker shares slumped 5.1%, to give the medical technology company a market cap of $63.45 billion. Boston Scientific's stock has run up 38.4% year to date, while Stryker shares have gained 9.7% and the S&P 500 has tacked on 4.1%.