David Merkel submits: I spent some time today updating my Treasury yield curve and inflation model. Anytime a new Treasury note/bond is issued, or we get a new CPI figure, or a coupon payment date passes, the model must be updated. Though I made some technical improvements to the program at the same time, what impressed me was the change in the forward inflation curve since I last wrote on the topic less than a month ago.
The big change is that inflation expectations rise continually out to 2038. Now the TIPS curve only goes out to 2032, so the extrapolation should be discounted. But the last time I wrote, inflation expectations peaked in 2022. That is a significant change. Investors have bid up the prices of long duration TIPS, to the point where I would be skittish about buying the long end of the TIPS curve.
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