News Catalyst: " All day - The Gabelli 45th Annual Automotive Aftermarket Symposium runs all day. Presentations in past years have led to some notable share price moves. Participants this year include Hyliion Holdings (NYSE:HYLN), Blink Charging (NASDAQ:BLNK) and Canoo (NASDAQ:GOEV). Adding to the intrigue, short interest as a percentage of total float on all three names is over 20%."