Why Is Synergy CHC Corp. ( $SNYR ) Stock Down -61.52% Today? Key Takeaways(Find out why any stock moved today on Tickeron.) SNYR shares plunged about 61.5% in morning trading, giving back most of the prior session's speculative surge. The decline is a sharp reversal of a momentum-driven short squeeze that pushed the stock up 233% in a single session. $FOCL $HKPD $COR $AHG $COSM