Turn-of-month effect
Are returns over the days around a month change abnormal?
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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 %
Turn-of-month effect
Average return on event days (%) (Line)
Benchmark / after-cost return (%)
Benchmark / after-cost return (%) (Bar)
Event detail and data date
Average return on event days (%) and Benchmark / after-cost return (%) (Table)
Sample data rows
| Trading day/observation period | Average return on event days (%) | Benchmark / after-cost return (%) | Data date (sample) |
|---|---|---|---|
| 2025-10-16 | 0 | 6.78 | 2025-10-16 |
| 2025-11-03 | 11.26 | 7.03 | 2025-11-03 |
| 2025-11-17 | 12.07 | 2.8 | 2025-11-17 |
| 2025-12-03 | 9.07 | 4.88 | 2025-12-03 |
| 2025-12-19 | -10.88 | 20.42 | 2025-12-19 |
| 2026-01-02 | -5.59 | 17.64 | 2026-01-02 |
| 2026-01-20 | 16.53 | 38.78 | 2026-01-20 |
| 2026-02-05 | 10.83 | 10.86 | 2026-02-05 |
| 2026-02-23 | 0.17 | 2.9 | 2026-02-23 |
| 2026-03-09 | 0.43 | 5.49 | 2026-03-09 |
| 2026-03-25 | 1.21 | 4.27 | 2026-03-25 |
| 2026-04-10 | 9.84 | 4.5 | 2026-04-10 |
| 2026-04-24 | 0.76 | 13.44 | 2026-04-24 |
| 2026-05-12 | -3.3 | 7.64 | 2026-05-12 |
| 2026-05-28 | -2.93 | 5.7 | 2026-05-28 |
| 2026-06-11 | -5.99 | 13.72 | 2026-06-11 |
| 2026-06-29 | -5.67 | 25.78 | 2026-06-29 |
| 2026-07-15 | -5.4 | 14.17 | 2026-07-15 |
| 2026-07-31 | 2.32 | 10.16 | 2026-07-31 |
| 2026-08-14 | 27.22 | 2.97 | 2026-08-14 |
| 2026-09-01 | 13.05 | 20.69 | 2026-09-01 |
| 2026-09-17 | -0.83 | 8.78 | 2026-09-17 |
| 2026-10-01 | 2.8 | 9.05 | 2026-10-01 |
| 2026-10-16 | -2.52 | 3.17 | 2026-10-16 |