Big5 Sporting Goods Call volume 400x normal as volatility spikes

Big5 Sporting Goods Call volume 400x normal as volatility spikes. Nearly 50k contracts have traded in Big 5 Sporting this morning with calls leading puts 92 to 1 as shares trade up $0.09, or 1.09%, near $7.88 with 30day at-the-money implied volatility up sharply from 50% to nearly 68.5%. July 10 calls make up 80% of the flow, with 43k contracts trading in a number of sweeps from 10c to 1.60, and a 56c avg price. Cboe open-close data indicates opening customer buyer(s) kicked things off with 25-30c sweeps of several thousand contracst just after 11am as shares traded $7.94, which was followed by a 13% jump in share price to nearly $9, where several hundred contracts traded $1.60, followed by a fade back to the $8 level and recent trades near 29c.