I’ve followed Einhorn since his book Fooling Some of the People All of the Time revealed his analytical research approach to value investing.
Einhorn’s list of long and short stocks is an interesting read. You sense Greenlight Capital‘s research and valuation processes: the significant factors (management view, company, industry, market, macroeconomic and causal) that shape companies, and the Bayesian inferential view of investor beliefs about them; how this analysis then translates to a market forecast; and how Einhorn intends to capitalise on these dynamics. The estimate assessment of multivariate factors shape investor beliefs and decisions. The market action which occurs from this creates opportunities using behavioural finance and market microstructure models (with a nod to technical analysis and high-frequency data analysis of transaction flows and volatility). It’s like reading Michael Mauboussin about how to think about investment ideas; or Peter Schwartz about trend forecasts and scenarios; or Robert Jervis and Gregory Treverton on strategic intelligence.