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My experience is unfortunately different, I found the data for some delisted stocks like HTZ missing which will massively screw the past results due to the surv

by SirLJ 9y ago

My experience is unfortunately different, I found the data for some delisted stocks like HTZ missing which will massively screw the past results due to the survivorship bias...

dsacco 9y ago
Can you please prove this or stop saying it? Quantopian's data is from Nanex and is free of survivorship bias, as I mentioned to you in another comment.
- SirLJ 9y ago
  Yes I can prove it, go and request historical data for symbols like AA, HTZ and you'll see yourself
  - thedufer 9y ago
    Last time you listed symbols that were missing dsacco showed that they were not. Why should we believe these?