Bureau of Economic Analysis this morning here:
3Q2023 nominal GDP, first estimate: $27.6235 trillion
Nominal increase year over year in 3Q: 6.27%
Compound annual growth rate since 3Q2000: 4.375%
Compound annual growth rate 3Q1947-3Q2000: 7.275%
Underperformance from post-war, last 12 months: 13.8%
Underperformance from post-war, last 23 years: 39.86%
Current S&P 500 ~ 4175
Current ratio of S&P 500 to GDP: 151
Median ratio of same 1938-2019: 81
Current overvaluation of S&P 500 from median: 86.4%
Current fair value of S&P 500: 2238