In a QDM market, trading stops if there is no quote on the opposite side at the time of a potential trade. What is noted about a quote that executes?

In a QDM market, trading stops if there is no quote on the opposite side at the time of a potential trade. What is noted about a quote that executes?

• A. If a quote executes and a limited order remains on the same side at the same price, trading is not suspended.
• B. If a quote executes but a limited order remains on the same side at a different price, trading is suspended.
• C. Trading is suspended if any quote executes.
• D. Trading continues regardless of quotes.

Answer: (A)

In a QDM market, trades rely on an executable quote on the opposite side. When that opposite-side quote executes, it removes the immediate liquidity on that side, but if there is still a resting limit order on the same side at the exact same price, there remains a valid price level with interest. That means trading can continue without interruption because the market can immediately match at that price, preserving continuity and avoiding an unnecessary halt. If instead the remaining interest is at a different price, there isn’t an immediate matching quote at the current level, so the system would use a pause to reassess liquidity and avoid unprotected trading. And trading isn’t forced to halt simply because a quote has executed; the halt depends on whether there is usable opposite-side liquidity at the moment.

In a QDM market, trades rely on an executable quote on the opposite side. When that opposite-side quote executes, it removes the immediate liquidity on that side, but if there is still a resting limit order on the same side at the exact same price, there remains a valid price level with interest. That means trading can continue without interruption because the market can immediately match at that price, preserving continuity and avoiding an unnecessary halt.

If instead the remaining interest is at a different price, there isn’t an immediate matching quote at the current level, so the system would use a pause to reassess liquidity and avoid unprotected trading. And trading isn’t forced to halt simply because a quote has executed; the halt depends on whether there is usable opposite-side liquidity at the moment.