Psoriatic arthritis is a chronic disease characterized by a form of inflammation of the skin (psoriasis) and joints (inflammatory arthritis). Psoriasis is a common skin condition affecting 2% of the Caucasian population in the United States.
Stock Market Holiday Closures. The US stock exchange is open for trading from 9:30AM to 4PM EST Monday through Friday. All major US exchanges adhere to The New York Stock Exchange (NYSE) holiday closing schedules. The NYSE markets are closed and observe the following federal holidays in 2017. Stock markets are closed New Year's Day Jan 2.
NYSE, NASDAQ and NYSE AMEX Trading Hours. 1  The New York Stock Exchange is open from Monday through Friday 9:30 a.m. to 4:00 p.m. ET. 2  The NASDAQ Stock Market regular trading hours are from 9:30 a.m. to 4:00 p.m. ET.