Investors get another chance to demonstrate insanity on Thursday, April 18, 2013, when the U.S. Treasury will auction a new 5-year Treasury Inflation-Protected Security.
This thing will be expensive. CUSIP 912828UX6 will have a coupon rate of 0.125% and will probably auction with a yield of about -1.7%. That means buyers will be paying up for a 1.825% boost to yearly income, probably about $109 for every $100 of value. (The last new issue of a 5-year TIPS went off in April 2012 with a yield to maturity of -1.080% and a cost of $106.38 per $100 of value.)
I get a lot of feedback from readers who dismiss buying short-term TIPS because of the negative yield, and I understand that. And paying up for a TIPS is a poor strategy because it undercuts the deflation protection TIPS provide. When you pay $100 for $100 of a TIPS (as in the good old days), at maturity you get back $100 plus inflation. When you pay up, your premium is at risk because at maturity you get back $100 plus inflation. If there was no inflation, you get back $100. Bad deal.
But is buying this 5-year TIPS an act of insanity? No, it is not. Actually, it makes some sense for the big-money folks: Hedge funds, foreign banks, foreign governments. They are looking to stash money in a super-safe, inflation-protected investment and can afford to make little or no income.
And … it matures in five years. That makes it easy to buy and hold-your-nose.
For the small investor, though, this 5-year TIPS looks like a loser. The 5-year time-frame opens up competing investments, such as bank CDs and especially U.S. I Bonds, that aren’t practical for the super-big-money investors. When comparing these investments, you need to look at how they will perform under varying inflation rates.
This chart of actual returns shows that a bank CD paying 1.7% (you might find better) will outperform a 5-year TIPS and I Bonds up to an inflation rate of 1.7%. Once inflation reaches 1.8% – the current rate is 2.0% – or higher, I Bonds outperform. A 5-year TIPS won’t outperform a bank CD until inflation reaches 3.5% or higher.
But what if you look at after-inflation return?
The bank CD outperforms up to an inflation rate of 1.7%. The I Bond outperforms at inflation rates of 1.8% and higher. The TIPS outperforms the bank CD only when inflation reaches 3.5% or higher.
Conclusion: When there’s actual inflation, I Bonds are clearly superior, and you should buy them to the max ($10,000 per person per year at TreasuryDirect). Purchases through April will pay the inflation-adjustment rate of 1.76% for six months. Earnings are tax-free until you sell the bonds.
After the I Bonds, where do you go with money you want in a super-safe investment, a 5-year TIPS or a 5-year bank CD?
- If you think we are heading toward deflation and economic Armageddon, buy insured bank CDs or traditional U.S. Treasurys.
- If you think inflation will remain tame over the next five years, buy bank CDs.
- If you believe inflation will average 3.5% or higher over the next five years, feel free to buy the new 5-year TIPS being auctioned April 18.
It’s not insanity. It’s math.


Sleepy, no politics, just information here. You must’ve forgotten we were told from the horse’s mouth that Iran’s nuclear weapons…