Historical data for CRTX is incorrect
Cortexyme (CRTX) began trading this year (2019) on May 9th, however you're showing data back to 2004, which is likely the data from the previous company that used that ticker, "Cornerstone Therapeutics Inc". That company was acquired someone else in 2014 and is in no way affiliated with Cortexyme (CRTX).
The historical data is obviously wrong and misleading to investors.
How does the system handle this same-ticker-different-year normally?
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Yahoo Finance