Is there a minimum order size?

Nearly every product offered by IBKR has NO minimum order size. You can place trades with an order size as low as 1 share, 1 contract, 1 unit of currency, etc. 

Exceptions

  • Forex order quantity is by default defined in terms of units of the first currency of the pair. The concept of Forex lots does not apply at IBKR.
  • Bond order minimums may vary. When you place an order the Order Ticket or order line should default to the minimum order size, which is also visible in the Order Preview. See also: How can I search for Bonds?
  • All Money Market Funds have an initial investment minimum and subsequent investment of USD 10,000 (irrespective of lower fund minimums). Mutual Fund orders do not have an initial fund order minimum. 
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