Gary Guthart, CEO, Intuitive SurgicalScott Mlyn | CNBCCheck out the companies making headlines after the bell: Del Taco Restaurants — Shares of Del Taco Restaurants surged nearly 9% after the Mexican restaurant chain reported better-than-expected quarterly earnings. The company posted an earnings per share of 16 cents in the third quarter, beating analysts' estimate of 10 cents, according to FactSet. Its franchised comparable restaurant sales also gained 6.5% year over year.Intuitive Surgical — Shares of Intuitive Surgical fell more than 2% despite the robotic surgical manufacturer's better-than-expected results. The company's profit came to $2.77 a share in the third quarter, ahead of $2.06 a share expected. Revenue fell to $1.08 billion from $1.13 billion a year earlier, but higher than analysts' expectation of $971 million. The company cited "a significant impact ...read more...