While short interest may be high the total put to call ratio is as low as it has been in years. I am not short a single share of anything right now. Further as per the discussion here I would suspect that no one here is doing anything but buying calls on MU and other stocks hoping for further gains.
More gains coming!
Why wouldn't you believe that would happen?
It's been 5 years of gains without a single 20% loss. Well there was an almost 20% loss in there but not quite.
Here is a chart of my own worth watching on the total put to call ratio. The trend shows increasing optimism for further gains. That in itself is not a problem. When the trend turns up then we will likely be undergoing a market correction.
That has not happened yet. Any weakness to start the year so far has not shown up in the buying of more puts to calls on a relative basis in any time frame that I chart.