A trade practise in which a floor broker, in executing an order -- particularly a large order -- will fill a portion of the order at one price and the remainder of the order at another price to avoid an exchange's rule against trading at fractional increments or "split ticks." In In re Murphy, Comm. Fut L. Rep. (CCH) at pp. 31,353-4 (Sept. 25, 1985), the Commission found that ginzy trading was a noncompetitive trading practise in violation of section 4c(a)(B) of the Commodity Exchange Act and CFTC regulation 1.38(a).