Hi, I was playing around with some basic strategy and noticed huge gains, but on closer inspection it seems like it's not recognizing splits that happened.

I was testing during 2018 and I found these 4 at least to be missing, but there might be more:

BIOC on 10/07/18

AYTU on 13/08/18

ALT on 14/09/18

NVCN on 21/09/18

 

Am I mistaken? Or are those splits really missing?