Author Bio Keith began writing for the Fool in 2012 and focuses primarily on healthcare investing topics. His background includes serving in management and consulting for the healthcare technology, health insurance, medical device, and pharmacy benefits management industries. Follow @keithspeights I picked Curaleaf Holdings (OTC:CURLF) as one of four pot stocks to buy on 420 Day (April 20) that could soar 20% or more this year. Since then, Curaleaf's share price has risen 12%. That gain (and my prediction) were on the line as the company announced its first-quarter results after the market closed on Monday. Based on Curaleaf's Q1 update, though, I remain confident about the coming months. Here are the highlights from the multistate cannabis operator's results.