$OPEN Rectangle Possible BreakdownOpendoor Technologies IncBATS:OPENidbb1OPEN has been stuck in a clean rectangle since February. Floor at $4.20 and ceiling at $5.66. Before that it bled from $11 down to $4, so this whole range is just a pause inside a downtrend, not a bottom. Ranges that form after a fall usually resolve the way price came in. So that is to the downside. The big green volume bar on 6/26 fooled a lot of people. 171M shares, roughly 4x normal and the timeline called it buyers defending the floor. It was not. That was the Russell 3000 reconstitution. Opendoor got added to the index and passive funds were forced to buy at the close. That is mechanical money. It buys once on the day and then it is gone. Here is the tell. 171M shares went through and the stock closed up a whole 1.63% parked right on the floor at $4.37. If that much forced buying could only lift it one percent and could not get it off the lows that is supply getting dumped into the index bid. That is not strength. A real defense closes strong and pushes back into the range. So now the index bid is behind us and the floor has been tested five times. I'm not short yet. I don't guess the break. The trigger is one thing only and that is a daily close below $4.20. I also want the next session to fail to reclaim it because a name this popular with retail loves to fake a break and snap straight back to trap the shorts. If it goes, the measured move is the height of the range projected down. $5.66 minus $4.20 is $1.46. So target around $2.70 to $2.80, I aim for the middle. Invalidation is a close back above $4.20 that holds or any clean reclaim of the range. If the floor keeps holding there is no trade and I stand down. One more note on how I would play it. Vol is cheap right now because the catalyst already passed, so if this triggers I'm buying $5 puts.