Contrary to popular belief, research has found a negative correlation between GDP and stock markets.,that markets slow down during recessions, but while they're crashing they still produce consumer goods which ends up lowering GDP.
Understanding Stock Market and Economic Cycles
The big bang: Stock market capitalization in the long run - ScienceDirect
Relationship between real GDP per capita (Euro) and stock market
The Market Is Detached From The Real Economy - RIA
Scatter Plots of the Relationship Between Financial Development
Recession vs. Depression - Know the Difference - Fisdom
Market Cap vs: GDP: Analyzing the Impact on Stock Market Valuation - FasterCapital
Growth Of Indian Stock Market, Stock Market Abstract, 47% OFF
Economic Growth vs. Stock Market Returns: China and India
The Stock Market Is Not The Economy
The percentage stock market capitalisation to gross domestic product
Oddly, Stock Market Returns And GDP Per Capita Are Inversely Correlated