OpenTable (OPEN +5.5%) closed sharply higher today after trading lower AH yesterday in response to the light revenue guidance accompanying its Q1 report. Healthy business metrics could be a reason: seated diners +25% Y/Y in Q1, up from Q4's 22%, and OpenTable's restaurant base rose by 440 to 27,957. Restaurant revenue +21% Y/Y (same as Q4), subscription revenue +8% (+10% in Q4). International seated diners +37% Y/Y, but revenue only +7%. North American seated diners +24%, revenue (87% of total) +17%. On the earnings call, management noted 36% of NA seated diners originated on a mobile device, up from Q4's 33%