The nature of the bot has changed. Today the 3 opening buy bids were each for 4100 shares at prices 1, 2, and 3 price increments below the highest buy bid. They all drop off exactly when the market opens, normally around 10:07 am. Due to the very limited shares on offer, the strategy is not working. No one is desperate to sell at any price when all OXX activities are revving up.