If it is entered during a continuous matching session state, the MTL order will be matched at the best possible price, and the remaining quantity of the order will be inserted into the order book as a limit order at the executed price.

When the MTL order is entered during a state when the orders are not matched continuously, the MTL order is stored in the order book like a market order.  When transiting from non-matching to an auction session or continuous matching session, the MTL orders are matched at the Equilibrium price.

A MTL can be entered with a FOK, FAK, Day or GTD/GTM time validity. For examples:

A Fill-and-Kill market-to-limit buy order for 500 ABC shares would first match at the best available ask, say, of $3.  Assuming there were only 200 ABC shares offered at $3, 200 shares will be matched at $3 and the remaining 300 shares would then be cancelled.

A Fill-or-Kill market-to-limit buy order will only be matched in its entirety at the best available ask, or be cancelled otherwise.  For example, a Fill-or-Kill buy market-to-limit order for 500 ABC shares will only be matched if there are at least 500 ABC shares on the ask side of the order book at the best available ask.  If there are fewer than 500 available shares at the best available ask, the Fill-or-Kill buy order will be cancelled immediately with no part being matched.

A buy market-to-limit order for 500 ABC shares entered with a Day or GTD/GTM validity would first match with at the best available ask, say, $3.  Assuming there are only 200 ABC shares offered at $3, 200 shares will be matched at $3 and the remaining 300 shares would be entered into the order book as a limit order at $3.  For a Day order, if the order is not filled at the end of the trading day, the order will be cancelled.  For a GTD/GTM order, the order will remain in the order book until it is fully filled, specifically cancelled, or the instrument is de-listed or expired.