The "monstrous green volume" in both cases is short covering. Neither drop was organic; they were orchestrated. When short bus shorty had to cover, he had to buy back, and they price spiked up... except it spiked up much more quickly than he imagined. More here: https://steemit.com/bitcoin/@chucklinart/how-bitcoin-shorts-shaw-bus-shawties-roll-and-how-to-take-their-money