As c101_137 & waveplayer said, before FED meeting，bull and bear are in balance condition.

There is only "Ping Pong" game to play. Neither Bull nor Bear dare to move big before the meeting. Because the damage could be huge if stay at wrong side of equation.

So NAZ will move in very narrow range within 100 points from 2710 to 2810.
It will be trading heaven for day traders. The strategy could be:

1. Close to 2810 short QQQQ or buy QID
2. Close to 2710 take profit on QID or QQQQ put and load up QQQQ calls.
3. Repeat 1 or 2 based on market condition.

Usually I am not day trader, but yesterday and today I just play some short term games and it works just fine.

C101_137's "Ping Pong" chart is really helpful. Thanks to him.