Also known as: 發行量加權股價指數 · TWSE Index (Bloomberg) · t00 (TIP code)
Tracked by: 006204 (ETF)
At a glance
| Field | Value | Source text | Reading (model) |
|---|---|---|---|
| M1 Identity, objective, classification · 8 fields | |||
| Index name | Taiwan Stock Exchange Capitalization Weighted Stock Index | 臺灣證券交易所發行量加權股價指數（以下簡稱加權指數，其英文簡稱為TAIEX）Open p.1 ↗ |
The official English name identifies the Taiwan Stock Exchange Capitalization Weighted Stock Index. |
| Index short name | TAIEX | 其英文簡稱為TAIEXOpen p.1 ↗ |
The index's English short name is TAIEX. |
| Local index name | 臺灣證券交易所發行量加權股價指數 | 臺灣證券交易所發行量加權股價指數（以下簡稱加權指數，其英文簡稱為TAIEX）Open p.1 ↗ |
The local index name is Taiwan Stock Exchange Capitalization Weighted Stock Index in Chinese. |
| Administrator | Taiwan Stock Exchange Corporation | 為臺灣證券交易所（以下簡稱本公司）自行編製的股價指數Open p.1 ↗ |
The index administrator is the Taiwan Stock Exchange Corporation. |
| Index family | TAIEX | 以下簡稱加權指數，其英文簡稱為TAIEXOpen p.1 ↗ |
The document belongs to the TAIEX index family profile. |
| Objective | 係衡量臺灣上市市場股票整體績效表現之指標 | 係衡量臺灣上市市場股票整體績效表現之指標Open p.1 ↗ |
The index measures the overall performance of stocks listed in the Taiwan market. |
| Market classification | Domestic | 係衡量臺灣上市市場股票整體績效表現之指標Open p.1 ↗ |
The index covers the domestic Taiwan listed stock market. |
| Index family type | Market cap | 臺灣證券交易所發行量加權股價指數Open p.1 ↗ |
The index is a capitalization-weighted stock index. |
| M2 Universe · 3 fields | |||
| Markets | Taiwan | 係衡量臺灣上市市場股票整體績效表現之指標Open p.1 ↗ |
The index covers the Taiwan listed stock market. |
| Exchanges | Taiwan Stock Exchange | 臺灣證券交易所發行量加權股價指數（以下簡稱加權指數，其英文簡稱為TAIEX）係衡量臺灣上市市場股票整體績效表現Open p.1 ↗ |
The index covers stocks listed on the Taiwan Stock Exchange. |
| Security types | Common | 係衡量臺灣上市市場股票整體績效表現之指標Open p.1 ↗ |
The index is described as covering listed stocks, with no broader security type specified. |
| M4 Selection and constituent count · 5 fields | |||
| New listing inclusion rule | New listings are added on the first trading day of the month following one full calendar month after listing, with specified corporate-conversion or OTC-to-listed transfer cases added on the listing day. | 新上市公司股票於上市滿一個日曆月之次月第一個交易日納入成分股，但已上市公司轉換股份予他新設公司或設立金融控股公司、投資控股公司、已上市公司分割後新設公司，及上櫃轉上市公司，則於上市當日即納入成分股。Open p.1 ↗ |
A newly listed stock is added on the first trading day of the next month after being listed for one calendar month, except specified restructured companies and OTC-transfer companies, which are added on the listing date. |
| Suspension deletion rule | Securities are deleted on the trading-suspension date and may be reinstated after ordinary trading resumes for one calendar month, except suspensions for specified capital reduction, denomination change, merger or statutory transaction reasons, for which constituents are retained. | 上市股票停止買賣，於停止買賣日自成分股中刪除，俟恢復普通交易滿一個日曆月之次月第一個交易日納入成分股；但上市公司有為彌補虧損、以現金退還股款或分割而辦理減資換發新股作業，或辦理變更股票面額換發新股作業，或依企業併購法、金融機構合併法或其他法令進行併購等情事而停止買賣者，保留為成分股，不予刪除。Open p.1 ↗ |
A suspended stock is deleted on the suspension date and re-enters after one calendar month of resumed ordinary trading, unless the suspension is for specified capital, denomination-change, merger or legal restructuring events, in which case it remains a constituent. |
| Altered trading method deletion rule | Stocks placed under an altered trading method are deleted on the second trading day after the announcement date and are added back on the day ordinary trading resumes; if also suspended, the suspension reinstatement date rule controls. | 經列為變更交易方法之上市股票於公告日次二交易日自成分股中刪除，恢復普通交易當日，即納入成分股。若上市股票亦有因停止買賣自成分股中刪除之情事，則納入成分股日期依本要點三、（二）為準。Open p.2 ↗ |
A stock designated for an altered trading method is removed two trading days after announcement, restored on the day ordinary trading resumes, and if it was also suspended, the suspension rule determines the re-entry date. |
| Delisting deletion rule | Stocks are deleted from the index on the delisting date. | 上市股票終止上市，於終止上市日自成分股中刪除。Open p.2 ↗ |
A listed stock is removed from the constituents on its delisting date. |
| Selection method | Screen all eligible | 本公司所編製加權指數之指數成分股為所有上市的普通股，並依下列規則處理：Open p.1 ↗ |
The index constituents comprise all listed common stocks subject to the stated inclusion and exclusion rules. |
| M8 Corporate actions, IPOs, ad-hoc changes · 3 fields | |||
| Divisor adjustment events | Constituent addition or deletion effective date, Cash capital increase subscription common stock ex rights trading day, Capital reduction with cash capital increase resumption date, Employee compensation bonus shares or new rights certificates listing date, Preferred stock free distribution of common shares ex rights trading day, Treasury shares not cancelled ex rights trading day, Statutory capital reduction after announcement ex rights trading day or third trading day of next month, Failed cash capital increase shares restored on third trading day of next month, Merger capital increase shares or new rights certificates listing date, Convertible bond exchange rights certificates converted to common stock listing date, Convertible bonds or warrant securities directly issued as common shares ex rights or capital registration announcement timing, Public underwriting for share rights abandoned listing date, New shares issued for overseas depositary receipts listing date, Convertible preferred shares converted to common shares ex rights or capital registration timing, Capital reduction or par value change new share exchange resumption date, Restricted employee equity shares ex rights or listing date, Employee stock option exercise common shares ex rights or capital registration timing, Other non market transaction factors affecting total listed market value | 本公司編製加權指數，成分股遇有下列狀況時，應調整基值，以維持加權指數之連續性Open p.2 ↗ |
The divisor is adjusted for constituent additions or deletions and specified corporate-action and share-count events to maintain index continuity. |
| Merger share listing timing | On the listing date of capital increase shares or new share rights certificates issued after a company merger. | 8. 公司合併後增資股或新股權利證書上市日。Open p.3 ↗ |
For mergers, the base value is adjusted on the listing date of newly issued capital increase shares or new rights certificates. |
| Share change timing examples | Ex rights trading day, Listing date, Resumption date, Third trading day of next month after announcement | 上市公司依法註銷股份辦理減資經本公司公告後之除權交易日或次月第三個交易日，並以較先者為準。Open p.2 ↗ |
Share-count-related base-value adjustments occur on ex-rights days, listing dates, resumption dates, or the third trading day of the next month, depending on the event. |
| M9 Calculation and return variants · 11 fields | |||
| Base period | 1966 annual average | 指數係以中華民國55年年平均為基期，基期指數設為100。Open p.2 ↗ |
The index uses the 1966 annual average in the Republic of China calendar as its base period, with the base index set to 100. |
| Base value adjustment formula | current_base_value = previous_base_value × adjusted_total_listed_market_capitalisation_after_previous_close ÷ previous_close_total_listed_market_capitalisation | 當日基值 ＝ 前一日基值 ×（前一日收盤後調整之總發行市值 ÷ 前一日收盤總發行市值）前一日收盤後調整之總發行市值 ＝ 前一日收盤總發行市值 ＋ 各項調整市值之總和Open p.3 ↗ |
The current base value equals the prior base value multiplied by the ratio of adjusted total market capitalisation after the previous close to the previous closing total market capitalisation. |
| Missing previous close fallback | Opening auction reference price | 本要點五、（三）計算之各項調整市值，如無前一日收盤價格時，得以當日開盤競價基準計算。Open p.4 ↗ |
If adjusted market values have no previous-day closing price, the current-day opening auction reference price may be used. |
| Closing market capitalisation records | Company keeps constituent closing market capitalisation records | 本公司保存成分股的收盤市值紀錄。Open p.1 ↗ |
The company maintains records of the closing market capitalisations of constituent stocks. |
| Formula type | Divisor | 本公司所編製之加權指數，其計算公式為：指數 ＝ 總發行市值 ÷ 當日基值 × 100Open p.2 ↗ |
The index is calculated as total listed market capitalisation divided by the day's base value and multiplied by 100. |
| Price source | Latest trade price with open auction reference fallback | 總發行市值為各成分股成交價格乘以當日發行股數所得市值之總和，若當日無成交價格時，得以當日開盤競價基準計算。但新上市公司股票納入指數計算，得以當日上市股數為準。Open p.2 ↗ |
The index uses each constituent's latest trade price; if there is no trade price that day, the opening auction reference price may be used. |
| Calculation frequency | Frequency: Real time; Interval seconds: 5, Frequency: End of day | 「價格指數」於本公司有價證券集中交易市場交易時間內，每隔五秒以成分股最新成交價格計算及公布即時指數一次，並於每日收盤後計算一次收盤指數。Open p.2 ↗ |
Both price and total return indices are calculated and published every five seconds during market hours, with one closing index calculated after each day's close. |
| Return variants | PR, GTR | 加權指數分「價格指數」(Price Index)、「報酬指數」(Total Return Index)，由本公司負責編製、計算及即時資訊傳輸。Open p.1 ↗ |
The weighted index is published as a price index and a total return index. |
| Dividend treatment | Total return index adjusts for cash dividends price index no base adjustment on ex dividend | 「報酬指數」考量現金股利因素後加以調整，用以反映包含現金股利之報酬Open p.2 ↗ |
The total return index is adjusted to reflect returns including cash dividends, while on ex-dividend days the base value is not adjusted for indices other than the total return index. |
| Divisor adjustment | Constituent changes, Cash capital increase, Employee bonus capitalization, Preferred share distribution of common shares, Rights and dividend events, Other share changes, Resumption of trading, Cash dividends for total return index | 各項調整市值之計算方式如下：Open p.3 ↗ |
Base-value adjustments cover constituent and retained-market-value changes, capital increases, employee bonus shares, preferred-share distributions, ex-rights/ex-dividend events, share-quantity changes, trading resumptions, and cash dividends for the total return index. |
| Market disruption rule | Suspended stocks retained at frozen market value | 上市股票於停止買賣期間保留為成分股者，以停止買賣前一交易日收盤價格和原發行股數所得市值作為保留市值持續納入指數計算；若該上市股票於停止買賣日除息時，則以停止買賣前一交易日收盤價格減除每股現金股利為價格和原發行股數所得市值作為保留市值持續納入指數計算。Open p.2 ↗ |
Listed stocks retained as constituents during a trading suspension remain in the index at their retained market value based on the last trading day's closing price and original shares, with dividends deducted if the suspension date is an ex-dividend date. |
| M10 Governance, change policy, disclosure · 2 fields | |||
| Index maintenance agent | Taiwan Index Corporation | 本公司委請臺灣指數公司依本指數編製要點進行指數成分股調整及指數維護。Open p.1 ↗ |
The company has engaged Taiwan Index Corporation to adjust index constituents and maintain the index under the index compilation rules. |
| Oversight body | Taiwan Stock Exchange Corporation | 由本公司負責編製、計算及即時資訊傳輸。Open p.1 ↗ |
The company is responsible for compiling and calculating the index and transmitting real-time information, and it retains constituent closing market-capitalisation records. |
Open points · 23Model-written, for reference
- 1Index code, ISIN, and third-party vendor tickers were not stated.
- 2Calculation agent, launch date, base date, base value, currency, methodology version, and methodology date were not stated.
- 3Benchmark regulatory status, intended use, size segment, factor exposures, and limitations were not stated.
- 4Parent index and detailed universe exclusions were not stated.
- 5Listing boards, company nationality rule, and specific security-type eligibility rules were not stated.
- 6Trading history, liquidity, size, free-float, foreign-room, voting-rights, price, financial, ESG, suspension, and abnormal-price screens were not stated.
- 7M4 does not state ranking metrics, a target constituent count, tie-break rule, industry-neutrality rule, or reserve list.
- 8M4 does not state the weighting scheme, free-float factor, domestic inclusion factor, foreign ownership treatment, weight caps, share-count source, or divisor adjustment rule.
- 9No periodic review frequency, review types, review months, data cutoff, announcement rule, or effective-date schedule was stated.
- 10No rank buffer, size-segment buffer, liquidity buffer for existing constituents, or maximum turnover per review was stated.
- 11No fast-entry rule for large new listings was stated.
- 12No explicit ad-hoc deletion triggers, replacement policy, reserve list, deletion price, or separate corporate-actions guide reference was stated.
- 13No numerical threshold for implementing ordinary share or free-float changes between reviews was stated; the section gives event-based timing only.
- 14No statement found for the number of decimal places used in the published index level.
- 15No net total return variant or withholding-tax basis is stated; only price and total return indices are identified.
- 16No policy for recalculating or correcting published index levels is stated.
- 17No rule for a full market closure or broader market disruption is stated; only suspended constituent stocks are addressed.
- 18No governance committee separate from the company and Taiwan Index Corporation is identified.
- 19No discretionary-decision points, methodology review frequency, external review, consultation procedure, material-change definition, notice period, error-correction policy, disclosure channels, constituent-publication frequency, or index cessation policy are stated.
- 20Not coveredM3 Eligibility screens: not covered by this edition
- 21Not coveredM5 Weighting and capping: not covered by this edition
- 22Not coveredM6 Review and rebalance schedule: not covered by this edition
- 23Not coveredM7 Buffers and turnover control: not covered by this edition
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