Reporting lag is the gap between a financial period’s end and the later release of its results. Quarterly earnings often arrive weeks after quarter-end, so they describe historical conditions when they become available. section 10.2.1
Treat the lag as a limitation, not a reason to discard fundamentals: combining fundamental signals with alternative or market-derived indicators can reduce delay and improve predictive accuracy. section 10.2.1
Combining signals
A hedge fund might combine quarterly earnings forecasts with real-time satellite imagery or credit card spending data to forecast earnings announcements before they become public. section 10.2.1
