Intuitive Surgical da Vinci Procedures Up 15% Over Q4

Shares of Intuitive Surgical, Inc. ISRG had a rare quiet post-earnings after-hours trading session Thursday.

The stock, which over the last three quarters has moved an average of between 7 and 8 percent on the day after the release of earnings, was trading just 0.8 percent higher.

Intuitive Surgical reported earnings of $5.89 per share, up 20 percent from the same quarter last year, and compared to the analyst consensus estimate of $5.04.

Sales totaled $677 million, better than the analyst estimate of $655 million and up about 13 percent from the $601 million posted during the fourth quarter of 2014.

Procedures via the company's all-important da Vinci platform were up 15 percent year-over-year, "driven primarily by growth in U.S. general surgery procedures and worldwide urological procedures," according to the company's press release.

Intuitive Surgical shares last traded at $557.95.