Correction on SPX not finished yet / Retest of the lows?

Without any good/bad news, market is fluctuating in sideways and should not take a direction before FED rate hike decision...
I am a bull in the longterm, but I prefer to wait and see what the market will do from today till the FED day..

To be opportunistic I would play a short position and wait for a retest of the lows.