I figured that there were two tickers that apparently have the same symbol code:



First is Hertz Global Holdings, Inc. (HTZ) NYSE

second cannot be found on Yahoo Finance, but another source claims it is Senior Housing Properties Trust  (SNHNL) on NASDAQ. I'm not sure if it is working or delisted. But there is no such data in QC data library, only for SNHN. But SNHN has different code V8HI7U4JO1GL

I don't think this is how it should be? At least I always assumed tickers have unique codes and use them as dict keys. But in my case I got both tickers at the same time slice and they clashed.