Public Heel...
Actually, that is a high premium for a put on a $15 stock with only a week and a half to trade. The fact that they report earnings early in that time frame is the only reason it is that high - I have not looked, but I suspect that even the 12.50's are drawing something, just because of the earnings report.
Because of the high premium, you have to be right to successfully play a stock right before it reports. After the report is out, the premium will shrink almost immediately so if the stock holds steady or goes up, you will get hurt in the puts. The opposite is true for the calls, of course. I will make a more serious play on it if JNPR is strong again tomorrow and the option gets cheaper. The stock could give back some due to folks who do not want to be in it when it reports - if I owned it, I would sell it tomorrow or at least sell the expiring calls against it (a high percentage play to pocket the whole premium.)
Of course, I may be wrong and they might run it after the earnings - in this market you never know and the normal rules often do not work.
mlsoft