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Risk tolerance as I age
You say you have 90% in stocks. I'll assume that you have the other 10% in bonds. For the sake of simplicity, I'll assume that your investments in stocks are in nice, passive indexed mutual funds and ETFs, rather than in individual stocks. A 90% allocation in stocks is considered aggressive. The problem is that if the stock market crashes, you may lose 40% or more of your investment in a single year. As you point out, you are investing for the long term. That's great, it means you can rest easy if the stock market crashes, safe in the hope that you have many years for it to recover. So long as you have the emotional willpower to stick with it. Would you be better off with a 100% allocation in stocks? You'd think so, wouldn't you. After all, the stock market as a whole gives better expected returns than the bond market. But keep in mind, the stock market and the bond market are (somewhat) negatively correlated. That means when the stock market goes down, the bond market often goes up, and vice versa. Investing some of your money in bonds will slightly reduce your expected return but will also reduce your standard deviation and your maximum annual loss. Canadian Couch Potato has an interesting write-up on how to estimate stock and bond returns. It's based on your stocks being invested equally in the Canadian, U.S., and international markets. As you live in the U.S., that likely doesn't directly apply to you; you probably ignore the Canadian stock market, but your returns will be fairly similar. I've reproduced part of that table here: As you can see, your expected return is highest with a 100% allocation in stocks. With a 20 year window, you likely can recover from any crash. If you have the stomach for it, it's the allocation with the highest expected return. Once you get closer to retirement, though, you have less time to wait for the stock market to recover. If you still have 90% or 100% of your investment in stocks and the market crashes by 44%, it might well take you more than 6 years to recover. Canadian Couch Potato has another article, Does a 60/40 Portfolio Still Make Sense? A 60/40 portfolio is a fairly common split for regular investors. Typically considered not too aggressive, not too conservative. The article references an AP article that suggests, in the current financial climate, 60/40 isn't enough. Even they aren't recommending a 90/10 or a 100/0 split, though. Personally, I think 60/40 is too conservative. However, I don't have the stomach for a 100/0 split or even a 90/10 split. Okay, to get back to your question. So long as your time horizon is far enough out, the expected return is highest with a 100% allocation in stocks. Be sure that you can tolerate the risk, though. A 30% or 40% hit to your investments is enough to make anyone jittery. Investing a portion of your money in bonds slightly lowers your expected return but can measurably reduce your risk. As you get closer to retirement and your time horizon narrows, you have less time to recover from a stock market crash and do need to be more conservative. 6 years is probably too short to keep all your money in stocks. Is your stated approach reasonable? Well, only you can answer that. :)