I see a glimmer of hope for 200/300 points retracement to the fall in this weekly series as today around 30min. back we have made a higher high in OBV over this mornings levels. That was the first retracement after yesterday's fall. So if we take these high levels out on monday and more importantly do not breach the lowest OBV levels of the day, we should be good for a retracement of 240-300 points from today's low.
And the beauty and simplicity is that we all get to make money at the same time (well almost but for the difference in signal from the data vendor) So trading 1min.charts also made easy for all by this method.