The current ATH for Bitstamp is $2980. We got very close to it yesterday, but the price was going way too quickly and was not sustainable. I think that a new number may be possible, very shortly. Therefore:
New ATH: July 24. 2017 (even if entries can't have the same date?).
Reason: BIP91 activates in ~250 blocks and the reached price yesterday.
In case that some people have not noticed it yet:
My bet was 24 july.
Because original plan was (pools) to start signaling at 21 july(info from github).
I counted lock on 24 but signaling started earlier so it maybe activation around 24.
Because of these 3 days they took in advantage ATH was close to happen 21 but did not quite reach it.
Next change is 24 monday, the day after weekend when new fiat rolls into exchanges --> ATH.