Where are the TIPS Strips?

Let’s say you’re a risk-averse investor with a nest egg you want to save for retirement. You’re not greedy; you’d rather take absolute safety over an extra point or two in annual returns. You could just keep your money in cash, but then you run the risk that it will be eroded by inflation: while that might not be a huge worry right now, your time horizon is decades long. And so you look to TIPS instead.

The problem with TIPS is the interest payments: if inflation is high, your coupon will be high as well, but it comes to you in rapidly-depreciating cash. Buying the TIP ETF, as Dave Neubert recommends, has the same problem: it, too, dividends out the coupon, leaving it to the investor to try to reinvest that coupon as best he can. The real yield on TIPS might be great right now (about 3%), but it probably won’t be that high when you try to reinvest your coupons.

Fortunately, there’s a solution. TIPS are strippable, which means that you can buy a 20-year zero-coupon TIPS — just the final payment, with none of the coupons along the way. It’s a risk-free way of getting a guaranteed real return over as many years as you like, and since you can pick which principal or coupon payment you want to buy, you can orchestrate things so that your bond matures on pretty much the very day you want: just when, say, you’re set to retire.

One would imagine, then, that TIPS strips would be very popular investments right now. And one would be wrong. In fact, TIPS strips are so unpopular that one broker told me he suspected they don’t actually exist. While TIPS are indeed strippable, the strips don’t seem to be traded in any kind of a liquid market, and finding them in the wild is decidedly non-trivial.

I’ve spent a bit of time googling things like "tips strips cusip" without a lot of luck, so maybe my readers can help me out. How easy or difficult is it for an individual investor to buy TIPS strips? What’s the bid-offer spread on such things? And why aren’t they more popular?

Update: pwm76, in the comments, did some serious looking and came up empty-handed:

I asked several major brokers to look for stripped principal TIPS for me, and for large lots. No luck. I doubt they exist (at a good price, that is).


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