MP is not a savings account.  You are not paid an interest.

Potential is:
You could lose it all up to owning all bitcoin (if everyone in the world gambled and lost and the other investors, app developers, owners in the site then did the same thing).

Currently, you would be losing money (bitcoin) for the month prior; however, you would have made money in almost every month prior to that.

You are basically gambling with your money without having to pull the trigger and the odds have now slightly turned in your favor.