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Can the stock market be used to make a reliable random number generator?

I'm not necessarily asking if it follows a random walk which was discussed more here, nor am I asking if everything about it is 100% random.

I'm just wondering if there is data that can be extracted out in such a way that a reliable random number generator can be created.

Scotty Jamison
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    Depends on how you define "the stock market" and "reliable random number" and that is just for starters. – Somos Jun 20 '18 at 23:22
  • Well, stock market being any data you can get from the stock graphs. reliable meaning, well, aren't there tests that determine if a random number generator is reliable or not? – Scotty Jamison Jun 20 '18 at 23:45
  • I would guess looking at whether the last digit of, say, aapl closing price rounds to a $.05$ or a $.00$ would be a pretty decent independent bernoulli variable. Of course this guess could be wildly wrong – spaceisdarkgreen Jun 20 '18 at 23:54
  • Oh, that's a good thought @spaceisdarkgreen. I guess things like that can be used. I guess that kind of leads into pseudo-random number generator territory where anything can be used as a seed to make a string of pretty much random numbers also. Thanks for the thoughts guys :) – Scotty Jamison Jun 21 '18 at 00:25

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