Biotech tools stocks such as Charles River and Illumina are in a narrative-driven mania while their fundamentals haven't really moved. Charles River is ripping after reaffirming guidance for negative revenue growth this year. Illumina hasn't grown in five years, yet trades at over 50x earnings and 35x EV/EBITDA, with merely fine margins. Five straight years of easier comparisons are being sold as a coiled spring. x.com x.com x.comÂ