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Trading Stocks After Hours is Risky

Leave After-Hours Trading for Professionals

By Ken Little, About.com

Trading stocks after the markets close may seem like a good idea. After all, you get to act on news that’s often released minutes following the close of trading for the day, such as earnings reports.

However, it’s not quite that simple.

After-hours trading, which happens after the market closes in the afternoon and before the market opens the next day (often called pre-market trading), is a risky business.

First Some Basics

  • After-hours trading usually ends at 6:30 p.m. EST and pre-market trading begins at 7:30 a.m. EST.
  • You can enter an order for the next day’s live market session at any time and it will become active when the market officially opens for business.
  • Orders left unfulfilled during regular trading hours do not carry over into after-hour trading unless you specify them to with your broker.
  • Most after-hour orders must be limit orders (check with your broker for particulars).

    After-hours trading is risky because you may be limited to seeing only quotes from your broker, so you may not know if what is the best price.

    Volatile Prices

    In many cases, there are few buyers and sellers meaning prices can be volatile. The after-hours market does about one percent of the volume of the daily live markets.

    Institutional investors dominate the after-hours market and can dramatically change prices by their actions.

    The after-hours market is not recommended for investors who are looking for long-term investments. Prices can be very volatile and you’ll want to know exactly what you are paying to take a long-term position.

    Stock traders, people interested in short-term price movements, are attracted to the after-hours market. However, traders operate in the dark because they can’t see the whole market.

    The after-hours market is best left to professional traders or traders with years of experience.

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