event study
Pre-Earnings Runup in Japan: The Effect Disappears Against the Nikkei
Japanese stocks don't drift upward before earnings announcements. Not when you measure against the right benchmark. Contents 1. Why the Benchmark Matters 2. Method 3. Results 4. What Changed From the Original Analysis 5. What This Means 6. Limitations 7. Takeaway Our original analysis showed a +0.114%