TBT – ETF that is short US treasuries. For the past 30 years bonds have been in a bull market. From 1982 to about 2000 both stocks and bonds were both in bull markets. I think there will be a time where both stocks and bonds are in bear markets and it might be rather difficult to get a good return. Neither stocks or bonds performed well from 1976 to 1982. A lot of people think high inflation makes stocks a good investment but that was only true if you got in the 1975 bottom from 1976 to 1982 stocks had a negative real return. Commodities might be your best bet if you truly believe in high interest rates/high inflation.