Post-earnings drift study
Do stocks that beat expectations keep outperforming afterwards?
Download CSV
Sample JSON
Specification JSON
Sample as of
0700.HK Tencent Holdings | Hang Seng Index | 2025-10-16 – 2026-10-16 | HKD
- Latest value
- -2.52 %
- Period average
- 3.94 %
- Period high
- 33.8 %
- Period low
- -13.7 %
Main chart: average post-event excess return (%), ordered by trading days after announcement
Average post-event excess return (%) (Line)
Supporting chart: sample size by group and quantile range
Sample size by group and quantile range (Bar)
Detail: post-earnings drift study data rows, observation dates and missing-value status
Average post-event excess return (%) and Sample size by group and quantile range (Table)
Sample data rows
| Trading days after announcement | Average post-event excess return (%) | Sample size by group and quantile range | Data date (sample) |
|---|---|---|---|
| 2025-10-16 | 0 | 97 | 2025-10-16 |
| 2025-11-03 | 11.26 | 100 | 2025-11-03 |
| 2025-11-17 | 12.07 | 98.5 | 2025-11-17 |
| 2025-12-03 | 9.07 | 85.2 | 2025-12-03 |
| 2025-12-19 | -10.88 | 96.1 | 2025-12-19 |
| 2026-01-02 | -5.59 | 92.3 | 2026-01-02 |
| 2026-01-20 | 16.53 | 100 | 2026-01-20 |
| 2026-02-05 | 10.83 | 89.4 | 2026-02-05 |
| 2026-02-23 | 0.17 | 100 | 2026-02-23 |
| 2026-03-09 | 0.43 | 86.3 | 2026-03-09 |
| 2026-03-25 | 1.21 | 98.4 | 2026-03-25 |
| 2026-04-10 | 9.84 | 89.7 | 2026-04-10 |
| 2026-04-24 | 0.76 | 92.2 | 2026-04-24 |
| 2026-05-12 | -3.3 | 98 | 2026-05-12 |
| 2026-05-28 | -2.93 | 87.7 | 2026-05-28 |
| 2026-06-11 | -5.99 | 92.6 | 2026-06-11 |
| 2026-06-29 | -5.67 | 100 | 2026-06-29 |
| 2026-07-15 | -5.4 | 81.6 | 2026-07-15 |
| 2026-07-31 | 2.32 | 100 | 2026-07-31 |
| 2026-08-14 | 27.22 | 90.8 | 2026-08-14 |
| 2026-09-01 | 13.05 | 98.8 | 2026-09-01 |
| 2026-09-17 | -0.83 | 91.8 | 2026-09-17 |
| 2026-10-01 | 2.8 | 100 | 2026-10-01 |
| 2026-10-16 | -2.52 | 94 | 2026-10-16 |