Why was a fund selling BNK, well
does it really matter, take a look at stock charts for a variety of different stocks and you will see that at their lows, there were lots of sellers, and the one thing all those sellers had in common, was that for whatever reason they sold, they were wrong. At the bottom there are always sellers due to fear, fund redemptions, margin calls, you name it, the only thing in common was those sellers gave cheap shares to the buyers.
Funny thing is when a stock is hitting new highs, there are lots of buyers and nobody is asking why they are buying, even though again, all those buyers ended up being wrong as they bought at the peak. That is why if you do not want to go broke in this business, you learn to be a contrarian because they crowd is often wrong, so follow the crowd at your own risk. But just my views, however, had I followed the crowd all these years I likely would not have survived to be posting right now.