re: buy vs sell, right, but the key is which side of the trade the deep pocket was on. ie: casino dumping on retailer during bot rally yesterday? or casino loading up before a run to 220+?
no way to know. only info we have is the strike price w.r.t the time it printed. but the orders could have slowly been filled throughout the day and only printed at the end esp the 4m share order that printed at the close.
given uncertainly, seems prudent to just focus on today's chart.
which was looking bullish until 11:30 but dropping since then.
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