pattern day trader meaning

• [Finance]
  An SEC designation for traders who trade the same security four or more times per day (buys and sells) over a five-day period, and for whom same-day trades make up at least 6% of their activity for that period.

• A non-pattern day trader ( i . e . someone with only occasional day trades ), can become designated a pattern day trader anytime if he meets the above criteria.
• A non-pattern day trader ( i . e . someone with only occasional day trades ), can become designated a pattern day trader anytime if he meets the above criteria.
• In the USA for example, while the overnight margins required to hold a stock position are normally 50 % of the stock's value, many brokers allow pattern day trader accounts to use levels as low as 25 % for intraday purchases.
• If the brokerage firm knows, or reasonably believes a client who seeks to open or resume trading in an account will engage in pattern day trading, then the customer may immediately be deemed to be a pattern day trader without waiting five business days.

• "pattern day trader" meaning in Chinese: [网络] 日内交易者；典型日内交易者