I think there may be a PIT problem with No OTC Exchange stock universes.
COmpany Bird Global was delisted from Nasdaq (announced 2023, i think effective 2024). The P123 ticker is BRDSQ^24.
If you make a screen in 2021 for example, and make the only critera ticker(“BRDSQ^24”), it WILL show up if you include all stocks as the starting universe, but then it disappears if you choose No OTC Exchange. But this would be a PIT problem, since in 2021, you didn’t know it would end up delisting years later.
The only thing I could be missing is if its a different ticker before it delisted, but I can’t find it.
If this is real, its a huge problem since delisted stocks being excluded before they’re delisting would be huge bias.
