Someone in the broker ratings said that if one trader at a prop firm NXs a stock the 30 second rule (cant enter another NX order) is in effect for every trader at the firm trading that particular stock. Specifically he said, "The NX rule is a compliance issue...Other firms who have violated this rule are indeed in trouble with NASD and NYSE. There has to be that 30 second delay between all traders at prop firms. Firms that let all their traders just execute NX trades have had their red flags raised." Does anyone at Bright or Echo or any other firm know if this is true?