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Dividend policy announced
n=916as of 2026-07-09
Dividend distribution resolutions and ex-dividend related filings.
| Window | Benchmark | n | Mean abnormal return | Median | q value | Significant |
|---|---|---|---|---|---|---|
| Event day | CAR | 916 | +0.30% | +0.07% | 0.019 | Yes |
| Event day | BHAR | 737 | +0.52% | +0.32% | 0.000 | Yes |
| 5 trading days after | CAR | 832 | +0.78% | +0.43% | 0.058 | Yes |
| 5 trading days after | BHAR | 668 | +2.28% | +1.47% | 0.000 | Yes |
| 20 trading days after | BHAR | 349 | +5.01% | +2.96% | 0.000 | Yes |
Method: the filing's public-availability date is day 0, with a conservative entry on the following trading day. CAR (cumulative abnormal return) is estimated with a market model and calibrated by a placebo test that keeps the event dates but draws random same-day tickers. BHAR (buy-and-hold abnormal return) is measured against size- and liquidity-matched control stocks. All tests carry a multiple-testing correction (BH-FDR). Where the two benchmarks disagree, both are shown as they are — we do not pick the flattering one.
Frequently asked questions
How do Taiwan share prices behave after a company announces its dividend policy?
Across n=916 historical events measured by this site's event study engine, mean abnormal return +0.30% on the event day (CAR benchmark). Both CAR and BHAR benchmarks are presented, flagged where they disagree. This is not investment advice.
How large is the sample when a company announces its dividend policy?
916 events, as of 2026-07-09, of which 9 statistical cells clear the significance threshold.
Other event categories
The above is a statistical view of historical events (base rates). It is not investment advice and not a trading signal; a historical distribution does not guarantee the future repeats it. Source: This site's event study engine (computed in-house from official public-source event data; editorial copyright)