Top of Book (TOB) orders are now available on Extended

A new Time-in-Force option for limit orders, designed to place your order at the top of the book without crossing the spread.

If your limit price would cross, TOB automatically adjusts it at placement:
Buy → one tick below the best ask
Sell → one tick above the best bid

The price stays fixed after placement. The order remains open until filled or cancelled.
TOB is not available on RFQ markets.

Order execution depends on market conditions and is not guaranteed.