Professional Stock Lingo, Block Orders

When trading large amounts of stock the lingo changes from simply, "I bought 15 shares of Apple today Bob." Institutions such as mutual funds and hedge funds are typically trading so many shares at once that they tend to stick to whole amount standards, one of which is called a "block" of shares.

So how many shares is a block order? A standard block is 10,000 shares total which for the average investor should make heads spin because 10,000 shares of a stock trading at $50 is $500,000 worth of stock. So, instead of a fund manager saying, "I bought 100,000 shares of XYZ today" they will say instead, "I bought 10 blocks of XYZ today." Try it sometime :twisted:.

You can find the term Block Order in the stock terms area of the site (View a full list of all terms).


  1. Posted by kanerd on August 28, 2008 at 9:32 pm

    I want to trade a block one day :mrgreen:

  2. Posted by Matt on August 28, 2008 at 9:42 pm

    What is a "lot"? I have heard that term used before too

  3. Posted by rhinodude47 on August 29, 2008 at 1:18 am

    A lot is the same general concept as a block, except it can be any basic sum. Take for example options where each option controls 100 shares, this would be known as a 100 share lot.

  4. Posted by Brandon on August 29, 2008 at 8:53 am

    "term of the day" rules!!!

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