• livus@kbin.social
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    1 year ago

    Heh. Yeah I remember that, it was wild.

    I don’t think most people are aware of the physical reality of what HFTs are doing.

    Relevant quote from your wikipedia:

    In May 2014, a CFTC report concluded that high-frequency traders "did not cause the Flash Crash, but contributed to it by demanding immediacy ahead of other market participants

    Or as the article I linked puts it:

    What turns out is happening is he’s sitting physically in lower Manhattan when he makes his trades. When he pushes the “buy” button, the signal from his computer travels up the fiber optics along the west-side highway of Manhattan and through the Lincoln Tunnel. On the other side of the Lincoln Tunnel is one of the 13 stock exchanges, called the BATS Exchange founded by high-frequency traders.

    They’re sitting there, and they get the signal that he wants to buy first. … They can see what he wants to do. They discern his desire to buy Microsoft, and they have faster connections to the 12 other exchanges that are scattered across New Jersey, and they race him to the other exchanges, buy all the Microsoft in front of him, and sell it back to him at a higher price.

    HFT algorithms jumping on stubs seems pretty plausible to me. The whole thing is way too black box at this point, it’s ridiculous that there isn’t a clear answer.

    • bionicjoey
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      1 year ago

      The book Flash Boys is fantastic and goes into a lot of the HFT stuff

      • livus@kbin.social
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        1 year ago

        Yeah it’s great. Was the nail in the coffin for any weird fantasies I had about day trading. Can’t compete with that.

        • bionicjoey
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          1 year ago

          Honestly I think it should be required reading for anyone who is planning on investing at anything shorter than a quarterly timescale

  • BastingChemina@slrpnk.net
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    1 year ago

    Is there any reason not to regulate HFT out of existence ?

    I understand that the stock market can be beneficial but High Frequency Trading?

    It’s just a parasite to the economy, sucking money without any benefit.

      • BringMeTheDiscoKing
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        1 year ago

        Because wealthy people can afford lawyers and accountants to figure out how to exploit the system without breaking laws (or at least minimize the chance of going to trial, and failing that, minimize the sentence/fines.)

        Its the system that’s broken, see? That’s who’s killing people now and future, not me and Elon and Jeff (AND Tim ytf does he always get a pass???) Its like, don’t hate the playa, hate the game, bro! And besides, who voted for the schmucks who set all this up anyway? I didn’t, I don’t even vote lol. No, it’s all of you! So really, it’s your fault. You’re welcome!

    • Kecessa@sh.itjust.works
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      1 year ago

      HFT, trading outside market hours (or markets closing, either one), dark pools, not making limit orders public… There’s plenty wrong with the stock market, some of which (and I hate to say it) is fixed by crypto…

    • collegefurtrader@discuss.tchncs.de
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      1 year ago

      No sir HFT provides liquidity to the stock market, which makes it more efficient.

      Removing high frequency traders would cause individual traders to get worse prices and/or wider bid/ask (buy/sell) price spreads.

      Basically the big players WANT you to remove HFT so they can more easily manipulate prices to take advantage of small traders

  • czech@kbin.social
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    1 year ago

    My roommate, at the time, was working as an analyst at a large bank. He claimed it was the “fat-finger theory” caused by a trader at his bank. Said some head trader meant to sell (as an example, I can’t remember the specifics he used) $100 million of a security, which is not a small trade and requires a few verification steps to proceed (entering your password multiple times). The trader hit the wrong button and the trade was made to sell $100 billion instead, which requires the same kind of multi-step verification but with these guys moving 1000 mph the million to billion swap was overlooked.

  • snooggums@kbin.social
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    1 year ago

    They were not real dollars and of course nobody was punished because the stock market is a casino where the house makes the rules on favor of the wealthy.

    • Bernie Ecclestoned@sh.itjust.works
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      1 year ago

      They were real dollars, and this legend got house arrest for a year for helping to trip the algos limit orders, and briefly wiped 1 trillion dollars of value off the US stock market

      Sarao realised that the high frequency traders all used similar software. That made the market twitchy - like a flock of sheep, all moving in the same direction

      His software took advantage of this by placing thousands of orders before quickly cancelling or changing them, once he had created artificial demand for other traders to buy or sell that asset.

      This practice - known as “spoofing” - allowed him to make genuine buy or sell orders at a profit as the price swiftly rose or fell

      https://www.bbc.com/news/explainers-51265169

      • Kecessa@sh.itjust.works
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        1 year ago

        So the guy played with the system, doing things the system allows ,but because he wasn’t in the club he got punished 🤷

        • Bernie Ecclestoned@sh.itjust.works
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          1 year ago

          What do you mean? There was a liquidity crunch because of a massive mutual fund order and his spoofing tripped the algos into selling

          • livus@kbin.social
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            1 year ago

            OP’s article is quite good.

            It’s more likely that there were several factors in play, including Wadell & Reed.

            But if the market practices weren’t so flawed with HFTs, none of that would have caused what happened.

      • snooggums@kbin.social
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        1 year ago

        Value of stocks is what they think people will pay, but if nobody wants to buy they are worth nothing. If stocks can change in value in fractions of seconds, they have no actual monetary worth, so nothing was lost and nothing was gained during this dip and recovery.

        Blah blah if you squint enough the same is true of paper money and lending, but that at least has some monetary banking while stocks are purely at a moments whim.

        • Dark_Blade@lemmy.world
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          1 year ago

          You see, the problem with your argument is that stock isn’t money, it’s an asset. While you can call the asset itself bogus, the money backing it is ‘real’; that’s why entire life savings can be wiped out if the market suddenly goes ‘kaput’.

            • Dark_Blade@lemmy.world
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              1 year ago

              Stocks aren’t money to begin with, they’re an asset class. The money invested in stocks is as real as any other dollar though.