Does a weaker dollar explain the US stock market's record high?
Core argument: Non-US stocks have beaten US stocks by about 10 percentage points since Feb. 19, and the S&P 500 sits above its Feb. 19 level in dollars but not when valued in any other major currency.
The [S&P 500] is above its Feb. 19 level when denominated in dollars, but not when valued in any other major currency. This high owes much to the dollar’s depreciation. The rest of the world’s stocks have beaten the US by about 10 percentage points since then. In dollars, that means a nice gain. The new all-time high doesn’t, then, challenge the prevailing narrative that it’s best to take money out of the US and reallocate elsewhere. This rebound has little to do with the giant tech platform groups that dominate the S&P. Since the previous high, Bloomberg’s Magnificent Seven index dipped much further during the alarm over the Liberation Day tariffs, but its performance is now bang in line with an index of the other 493 largest stocks. The S&P 500 is back trading at more than three times sales, close to a record.



