There is little time off for investors following Tesla these days. The weekend before Christmas is no exception. In the past couple of days, there have been more tweets about the electric-vehicle maker’s management. Investors have also learned where Tesla might put its next manufacturing plant. And Elon Musk has a finance lesson for investors.

“Securities Analysis 101,” the Tesla (ticker: TSLA) CEO tweeted out on Saturday. “As the ‘risk-free’ real rate of return from Treasury Bills approaches the much riskier rate of return from stocks, the value of stocks drop. For example, if T-bills and stocks both had a 10% rate of return, everyone would just buy the former.”

Source: finance.yahoo.com