How does he do that?
Good move. If you look at the chart, there is an inflection point in the $20 to $21 range. It's extremely likely that it will fill the gap and end up at those levels. There percentages warrant a short at this time. It's as simple as that.
When it bleeds all the way back to $20, you'll be crying the blues! Get out now with a profit. Or else the big boys will take it all away.
MED has nowhere to go but down now.