OS, though as you well know, though it's WAY to early to ascribe meaning to it, (un)fortunately, the same "over five under six" roadblocks are under construction already for -September-, as well as solidly in place for July. It's going to be a long summer.
Heck, why not? Everybody else does? When you're right, you're right. NO significant gain in OI today suggesting there's any confidence on the part of the next weekly bears this won't continue, for now. :)
Pinned under six, technically, as the calls side hugely outweighs the puts side, referring as you are the the weeklies.
FYI, since there would have been no reason for you to be watching or doing calculations as the OI rose, but average sales price of those $6 calls was about $.17. High was $.30 for a milisecond, IIRC, a decent amount were sold for $.25, a significant amount for $.20, then when that beachhead was firmly established as "safe," many wrote for behind them for $.15 or less.
So if Z's not under the $6 - $.17, generally speaking on Friday plus AH, you're going to hear a lot of screaming from the pros who wrote those calls this week.