I guess the same trading bots w the same algo are running on these coins perhaps
Not only that, it would have to be a *really* large trust (e.g. Microstrategy or Greyscale, not implying its them though), with a lot of these coins running those algorithms, since all these synchronizations are happening against USDT (strong signal that it is the work of trading bots and is not occuring naturally).
I thought the same, a trust or whale that deployed bots on these three coins. At this point I think it could be a possibility. It probably wouldn't be too difficult to come up with a list of who could deploy something like this.
After almost a decade of chart creeping, this is very strange to me. Three coins coupled for this long, I have not tried to correlate this to any other crypto yet.
I'm also guessing it could be a bot specifically designed to be deployed in bear market conditions. Pure speculations but it probably should not be ignored.