According to this news
https://www.reddit.com/r/jex/comments/a78wxw/what_does_it_mean/

The 53rd largest BTC address,
15xZvLJLAgxh8cxEmAbpx1H35oibHo5cLA

Has been adding +249.999 BTC
pretty much daily since Nov 28, 2018

Current Balance: 14,950 BTC
($52,185,839 USD)

Holds 0.08578% of all BTC

This might suggest that there will be a surge for BTC and other cryptocurrencies?