I agree that selling pressure drove the mhtx price down long term but buying pressure can bring prices down in the short term. This is a strategy used by high speed computer traders to get into stocks at lowball prices by flooding the market with low bids only to stop and let the prices recover so they can get out with a profit a few days later. I'm not saying that the "Algos" are trading mhtx. they aren't. I'm just saying that bids and bid sizes are worthy of attention.