Summary
- How does the Treasury determine the I Bond fixed rate? It’s a mystery.
- A recent surge in 5-year real yields seems to justify an increase in the fixed rate, and 10-year real yields are also rising.
- Most I Bond investors are waiting until November 1 to complete their I Bond allocation for 2017. What are the odds of a higher fixed rate?
Treasury Inflation-Protected Securities 
David, with all due respect, facts are better, e.g "but not massive." Really! Don't have to be a political appointee...look…