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Is losing money in my 401K normal?
It is absolutely normal for your investments to go down at times. If you pull money out whenever your investments decrease in value, you lock in the losses.  It is better to do a bit of research and come up with some sort of strategy about how you will manage your investments.  One such strategy is to choose a target asset allocation (or let the "target date" fund choose it for you) and never sell until you need the money for retirement.  Some would advocate various other strategies that involve timing the market.  The important thing is that you find a strategy that you can live with and that provides you with enough confidence that you won't buy and sell at random.  Acting on gut feelings and selling whenever you feel queasy will likely lead to worse outcomes in the long run.