Nyse Day Trading Rules

trading rules
Stipulation of parameters for opening and intra-day quotations, permissible spreads according to the prices of securities available for trading and board lot sizes for each security.

nyse
New York Stock Exchange
New York Stock Exchange: a stock exchange in New York
(NYSED) The New York State Education Department (NYSED) is the state education department in New York. It is part of the University of the State of New York (USNY), one of the most complete, interconnected systems of educational services in the United States.
for 10 months, the NYSE had to close early to allow member firms to process trades due to a 'paperwork crisis' resulting from a lack of back-office automation^VII

day
Carried out during the day as opposed to the evening or at night
some point or period in time; "it should arrive any day now"; "after that day she never trusted him again"; "those were the days"; "these days it is not unusual"
(of a person) Working during the day as opposed to at night
time for Earth to make a complete rotation on its axis; "two days later they left"; "they put on two performances every day"; "there are 30,000 passengers per day"
a day assigned to a particular purpose or observance; "Mother's Day"