Pegged-to-Midpoint Orders

A pegged-to-midpoint order provides a means for traders to seek a price at the midpoint of the National Best Bid and Offer (NBBO). The price automatically adjusts to peg the midpoint as the markets move, to remain aggressive. For a buy order, your bid is pegged to the NBBO midpoint and the order price adjusts automatically to continue to peg the midpoint if the market moves. The price only adjusts to be more aggressive. If the market moves in the opposite direction, the order will execute.

You can also define a price cap using the Limit Price field, to prevent your order from being executed above or below a specified price level.


The Reference Table to the upper right provides a general summary of the order type characteristics. The checked features are applicable in some combination, but do not necessarily work in conjunction with all other checked features. For example, if Options and Stocks, US and Non-US, and Smart and Directed are all checked, it does not follow that all US and Non-US Smart and direct-routed stocks support the order type. It may be the case that only Smart-routed US Stocks, direct-routed Non-US stocks and Smart-routed US Options are supported.

Products Availability Routing TWS
Stocks US Products Smart Attribute
Non-US Products Directed Order Type
Island Only Time in Force
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