Well, based on what I've seen here the past couple months, LAFC is pretty nimble in jumping in and out at different price points throughout the day. BKRT hasn't been that active on this ticker that I can recall but has become more so lately. On other tickers I have seen BKRT move around quite a bit in response to buying pressure trying to get the best price without totally killing a run.
VFIN and VNDM are another story, though, at least in my experience. If they have 5-10 million shares to sell at a price, they will sit there until those are gone, or occasionally go up a tick or two and then dump into the bid. When major dumpage coincides with news, it usually means dilution and it is usually done through one of those two MM's. They have no problems just killing a run and then some, and IMO it comes down to whether there is enough buying pressure from news to outpace their selling. Looking at TEMN the past couple months, I think SS is right... the 25-26 range is going to take some heavy buying, and I have no idea how many VNDM has waiting at .0029
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