What occurs to a trade executed during a regulatory trading halt according to FINRA rules?

When a trade is executed during a regulatory trading halt, FINRA rules stipulate that the trade is declared null and void. This is because regulatory trading halts are put in place to protect investors and ensure fair and orderly markets during periods of significant uncertainty or when material information is pending. Allowing trades to stand that took place during this period would undermine the purpose of the halt and could lead to unfair advantages or disadvantages among market participants, affecting overall market integrity. Therefore, any trades executed during such a halt are automatically invalidated to maintain a level playing field for all investors.