4 ms·

The market was not always driven by computers like it is now, and people running it needed to sleep.

• sethgecko 7y ago
  People running hospitals need to sleep too but they dont close for the night
  • gringoDan 7y ago
    People need medical care for emergencies in the middle of the night. People don't have the same need to trade 24/7. Matt Levine and others argue that shorter trading hours would actually increase market liquidity. Synthesize market information outside of market hours, then trade during a shorter window: https://www.bloomberg.com/opinion/articles/2020-03-09/stuff-is-bad-so-stocks-are-down https://www.bloomberg.com/opinion/articles/2020-03-09/stuff-...
• pgwhalen 7y ago
  The market is still very much driven by humans; the computers just help out, to varying degrees. The idea that computers are trading unattended is a myth that I hope would die.
  • ct0 7y ago
    Sure, while humans are critical to maintaining the infrastructure of the various markets, but we are beyond the days where markets were tracked on a chalk board. The NASDAQ is very much running on servers from an undisclosed data center off route 95 in New Jersey.
    • neomantra 7y ago
      Not undisclosed, primary is Equinix NY11: https://www.nasdaqtrader.com/Trader.aspx?id=POPs https://www.nasdaqtrader.com/Trader.aspx?id=POPs
  • narner90 7y ago
    A lot of trading is indeed done by minimally supervised computers, i.e. a human only looks at the computer if alarm bells ring. Source: was one of those humans
    • linkregister 7y ago
      How often are the models that drive algorithmic trading updated?
      • cameronh90 7y ago
        The pipeline for a given piece of research to get into production tends to be several months. Therefore, a small firm with only a few researchers might update between once and a few times a month, and a larger company it might be several times a week. It's rare to update the model more than once a day, since it'll normally be updated outside trading hours.