Coinbase Closes First Day of Trading Down 14% From Debut Price news coming from Decrypt Coinbase went public today, debuting on Nasdaq at $381 per share. It shot up to $424 before tumbling to $310, and ended the day at $328. That’s still 31% higher than its reference price. Coinbase wrapped its first day of public trading on Nasdaq with a share price of $328. It’s down 14% from its debut at $381, but still up 31% from the reference price of $250. The public debut of $COIN marks an important moment for the crypto…