Major stock exchanges are trying to slow down h.

Major stock exchanges are trying to slow down high-frequency traders The InterContinentalExchange, which bought the New York Stock Exchange about a year ago, released new rules yesterday for a few new no-nos for trade order types. Mainly, you can’t enter an order or market message with: The intent to cancel or modify the order before execution The intent to overload, delay, or disrupt the systems of the exchange or other market participants The intent to disrupt orderly trading, the fair execution of transactions The intent to mislead other market participants