You will make yourself crazy trying to follow the little ups and downs of the market, if your strategy is to hold long term then the best thing is to not look at your portfolio at all. There is nothing fundamentally changed in the markets, there was the stupid memo on Friday and the devastating Patriots loss but those things don't really have any long term impacts. It would not surprise me if all the losses from the last few days evaporate by the end of the week. Remember that the very wealthy like volatility because they make money on the swings.