
Throughout much of the 2010s, the financial markets were in a TINA (there is no alternative) environment. The Federal Reserve held short-term interest rates near 0% for much of the decade, and bond yields were paltry compared with the previous 50 to 60 years.
Much of the strength in the stock market was attributed to the idea that there simply was no investment alternative outside of equities. When fixed income and cash yields are so low, investors are forced to move further and further out on the risk curve to earn higher returns.