Unless you were implying that this will continue, "Are you sure that the market won't fall another 30% in the coming weeks?" is simply a non sequitur. As of now this is something that could be called a correction; it could develop into something that could be called a crash.
As of now, if you invested the index four months ago, you haven't lost a penny.
As of now, if you invested the index four months ago, you haven't lost a penny.