Lake Street analyst Brooks O'Neil recommends using Friday's post-earnings selloff in shares of Semler Scientific as a buying opportunity. Revenue of $5.6M was viewed by some as modestly disappointing, but Semler CEO Doug Murphy-Chutorian pointed out Q3 was the strongest of the year, O'Neil tells investors in a research note. The analyst believes this suggests "solid" Q3 activity did not get reflected in the financial statements this quarter. This "clearly bodes well for Q4 and beyond," says O'Neil. He reiterates a Buy rating on Semler Scientific with a $40 price target.