docs(TaiwanStockFinancialStatements): 補充 EPS 為單季值、遇配股會被追溯調整的說明 - #187
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修改檔案:
- docs/tutor/TaiwanMarket/Fundamental.md
於 TaiwanStockFinancialStatements 章節(資料區間/涵蓋範圍之後、
!!! example 之前)新增 ??? note
「EPS 為單季值,遇配股/分割會被追溯調整,跨季相加會對不上累計 EPS」,內容含:
1. 本表 EPS 是單季數字,各季存放該季財報公布當下的原始值。
2. 依 IAS 33,無償配股(股票股利)、股票分割須追溯調整所有列報期間
的加權平均股數;該季財報會下修先前各季 EPS,但本表不會回頭改寫
已公布的舊值,導致同一年度內各季 EPS 的股數基準不一致。
3. 實例 3081 聯亞:2026-07-15 除權配股票股利 1 元(每千股配 100 股,
無償配股 10%),本表 2026 Q1 EPS=3.44、Q2 EPS=4.62,相加 8.06,
但財報上半年累計 EPS 為 7.75(Q1 追溯調整後 3.44 ÷ 1.1 = 3.13)。
4. 建議做法:跨季合計改用 IncomeAfterTaxes(本期淨利)相加後除以同一
加權平均股數;並可用 TaiwanStockDividend 的 StockEarningsDistribution
欄位判斷區間內是否發生過配股。
- docs/tutor/TaiwanMarket/Fundamental.en.md
同章節新增對應英文 ??? note,內容與中文版一致。
- docs/llms-full.txt
於 TaiwanStockFinancialStatements 條目 Columns 之後補上一行
Caveat,摘要同一則說明,供 llms.txt 取用端一併取得。
起因為使用者於 FB 詢問 3081 的 Q1 + Q2 EPS 與上半年累計對不起來。
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背景
使用者於 FB 詢問:3081(聯亞)2026 Q1 EPS 是 3.44、Q2 是 4.62,相加為 8.06,為什麼財報上半年累計 EPS 卻是 7.75?
查證後確認不是資料錯誤:3081 於 2026-07-15 除權,配發股票股利 1 元(每千股配 100 股,即無償配股 10%)。依 IAS 33,無償配股須追溯調整所有列報期間的加權平均股數,因此 Q2 財報中 Q1 的 EPS 已被調整為
3.44 ÷ 1.1 = 3.13,3.13 + 4.62 = 7.75。本資料集的 EPS 是單季值,且各季存放的是該季財報公布當下的原始值(不回頭改寫),所以同一年度內各季的股數基準會不一致。這點過去文件沒有揭露,使用者容易誤判為資料有誤,故補上說明。
修改內容
docs/tutor/TaiwanMarket/Fundamental.md:於TaiwanStockFinancialStatements章節新增??? note,說明 EPS 為單季值、追溯調整機制、3081 實例,以及建議改用IncomeAfterTaxes相加後除以同一加權平均股數的做法。docs/tutor/TaiwanMarket/Fundamental.en.md:新增對應英文版 note。docs/llms-full.txt:於該資料集條目補上一行 Caveat 摘要。驗證
mkdocs build通過,中英文頁面皆正確渲染為可收合的 note 區塊。786,002 ÷ 7.75 ≈ 101,420千股,與 Q2 單季隱含股數468,487 ÷ 4.62 ≈ 101,404千股一致;TaiwanStockDividend的StockEarningsDistribution = 1.0、股本合計由 925,173 千元增至 1,017,690 千元(+10.0%)亦相符。