No bot, no volume, price goes up.
Bot now has a problem. Buyers are mounting at about 74 c so it can't drag the price down past that without selling a bunch of shares, which it doesn't want to do. Unfortunately for the bot theres no a lot of 'natural' selling either so it stays quiet waiting for the buy side to thin out so it can try to entice more sell orders by gradually pushing the price down. Poor bot.