Question for experts please

Discussion in 'Options' started by Ansare, Feb 28, 2012.

  1. Ansare


    Noticed that the daily closing price of options (at least the ones I checked) are different than the closing price at 16:00. Many seem to trade-or at least the price changes--up to 16:15. Could someone please explain 1) how that happens 2) can retail traders get in on it? I'm working on something which requires daily charts but if I'm not going to trade as the same time/prices it's going to muck things up.

    An example would be SPX120317C1375. The daily candle today shows a closing price of $14.00. But if you look at a 1 or 5 min chart it didn't reach 14 until 16:15.

    Thanks very much for any assistance.
  2. SPX option trading hours: 8:30 a.m. - 3:15 p.m. Central Time (Chicago time), that's 4:15pm (16:15) EST.
  3. Ansare


    So, options ARE traded to 4:15? For whatever reason I thought they only traded until 4 EST. Gee, can you tell I don't trade them?

    Thanks for the response.

  4. 4pm for most options. 4:15pm for QQQ, SPX options and a handful of others.
  5. Ansare


    Very helpful, thanks, again.