By David Enna, Tipswatch.com
The Treasury’s auction today of CUSIP 91282CGK1 — a 9-year, 8-month Treasury Inflation Protected Security — generated a real yield to maturity of 1.395%, a good result for investors but just slightly below market trends.
Earlier in the day, this TIPS was trading on the secondary market with a real yield to maturity of 1.41%, so the auction result came in slightly lower. Pretty close. The bid-to-cover ratio was a middle-of-the-road 2.31, indicating acceptable but not stellar demand.
Definition: A TIPS is an investment that pays a coupon rate well below that of other Treasury investments of the same term. But with a TIPS, the principal balance adjusts each month (usually up, but sometimes down) to match the current U.S. inflation rate. So, the “real yield to maturity” of a TIPS indicates how much an investor will earn above inflation.
On the positive side, the real yield of 1.395% was the 2nd highest for any TIPS auction of this 9- to 10-year term dating back to a reopening auction in April 2010. The only auction with a higher result came in November 2022 at 1.485%.
Here is the trend in the 10-year real yield over the last 12 months, a remarkable period when we have seen real yields rise from 0.0% to today’s 1.395%:
Pricing
CUSIP 91282CGK1 has a coupon rate of 1.125%, which was set by the originating auction on January 19. Because the auctioned real yield was higher, this TIPS sold at a discount, with an unadjusted price of 97.575406. It will have an inflation index of 1.01319 on the settlement date of May 31.
Here is how the pricing works out for today’s investors:
Note that the cost of investment came in lower than the par value, even with the addition of the 1.01319 inflation index. This is because of the 27-basis-point spread between the real yield and coupon rate, which was large enough to cover the inflation accrual. It’s not a big deal, but remember that with any TIPS par value is guaranteed to be returned at maturity, even after a long period of deflation.
Inflation breakeven rate
With a 10-year nominal Treasury note trading at 3.64% at the auction’s close, this TIPS gets an inflation breakeven rate of 2.25%, close to recent results for this term. It means that CUSIP 91282CGK1 will outperform a nominal 10-year Treasury if inflation averages more than 2.25% for the next 9 years, 8 months.
Here is the trend in the 10-year inflation breakeven rate over the last year, demonstrating that inflation expectations have been sliding lower as the Fed has raised interest rates and continued quantitative tightening:

Final thoughts
This auction was a good result for investors. Earlier in the morning, it looked like the real yield could end up around 1.41%, but this result was fine — the second highest auctioned real yield in a dozen years. I was a buyer. I’m happy.
It’s impossible to say where real yields will be heading, even in the near-term future. They could certainly go higher, but I think this period of fairly stable high real yields is a good time to continue adding to your hold-to-maturity TIPS investments.
This auction closes the books on CUSIP 91282CGK1. A new 10-year TIPS will be auctioned on July 20 and then reopened in September and November.
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David Enna is a financial journalist, not a financial adviser. He is not selling or profiting from any investment discussed. I Bonds and TIPS are not “get rich” investments; they are best used for capital preservation and inflation protection. They can be purchased through the Treasury or other providers without fees, commissions or carrying charges. Please do your own research before investing.


















I do have heirs... so I try and purchase long term bonds in my IRA's that will mature no later…