Today the consumer price index (CPI), a measure of inflation, came in hotter than expected, registering 2.3 percent year-over-year in August on expectations of 2.0 percent. With the five-year Treasury yielding 1.19 percent, government bond investors are now receiving a negative real rate of return (because 2.3 minus 1.19 comes out to negative 1.11 percent).

This is highly constructive for the price of gold. As I’ve discussed many times before, the yellow metal has benefited when real rates have fallen below zero. This was the case in September 2011 when gold hit its all-time high of $1,900 per ounce. And last year around this time, the opposite was true—positive real rates were a drag on gold.