While I remain on the side lines in cash, it is always useful to monitor the few stocks that can hit an all-time high (ATH) during a market decline. That is a demonstration of remarkable technical strength. The great trader, Nicolas Darvas, liked to focus on stocks breaking out to ATH that had already doubled in the past year. Of these 12, the ones that have at least doubled are: ENSG, SEND, UBNT, TWLO, FTSV, NFEC.