Summary
- Above-inflation yields have declined sharply, but still remain “relatively” attractive compared to those of the last 10 years.
- Five-year bank CDs yielding above 3% are a compelling alternative.
- I Bonds with the current fixed rate of 0.5% are also more attractive, so buy I Bonds to the max before investing in this five-year TIPS.
As of today, with four days to go, CUSIP 9128286N5 looks likely to get a real yield to maturity of 0.52% and a coupon rate of 0.50%. If the auctioned real yield slips below 0.50%, the coupon rate will fall to 0.375%.
Read my full analysis on SeekingAlpha.com
Treasury Inflation-Protected Securities 
It is true that I could have redeemed it when the rate was 1.9%, and maybe could have earned more…