The 2 most probable stopping points for this counter-trend bounce are the 38.2% Fib/208.39 horizontal resistance (here) or the 50% Fib/209 resistance level on the SPY & the resistance zone on QQQ that runs from 107.92 – 108.37. 15-minute charts:
For those trading the small caps, the most likely reversal range is between the 114.54 resistance level where IWM is currently trading, up to the 115.57 level (note the 38.2% Fib also comes in around the middle of that resistance zone).