In the 1965–1972 window, asset pricing research coalesced around information-driven price dynamics and risk-based valuations. Empirical work tested price changes, formalized rapid price adjustment to new information, and laid the groundwork for the Efficient Market Hypothesis through event-study style analyses and semi-strong form efficiency concepts. Methodologically, researchers integrated testing of information dissemination with portfolio-level considerations and began to connect expected returns to risk in a coherent pricing framework. Historical Significance: These advances established the core architecture of modern asset pricing by unifying information flow, risk premia, and market equilibrium. The period yielded the Capital Asset Pricing Model and continuous-time optimization foundations that anchored subsequent theoretical and empirical work, shaping risk management and valuation across decades.