二、本公司於所設之證券集中交易市場(以下簡稱市場)每日交易時間內，分析股票、受益憑證、轉換公司債、附認股權公司債、附認股權特別股、存託憑證、認購(售)權證及其他有價證券之交易，發現其有左列情形之一時，即依第三條規定辦理。
2.
When the TSEC discovers any of the following in the centralized securities exchange market ("the market") through its analysis of stocks, beneficiary certificates, convertible corporate bonds, corporate bonds with warrants, preferred shares with warrants, depositary receipts, call (put) warrants, or other securities during daily trading hours, it will take measures pursuant to the provisions of Point 3 herein:
(一)當日盤中成交價振幅超過百分之九，且與本公司發行量加權股價指數振幅之差幅在百分之五以上，且其成交量達三千交易單位以上者。
(1) Where, on trading volume of 3,000 trading units or more, the amplitude of change in the intraday transaction price exceeds 9 percent, while also exceeding the amplitude of change in the TSEC Capitalization-Weighted Stock Index by 5 percent or more.
(二)當日盤中成交價漲跌百分比超過百分之六，且與本公司發行量加權股價指數漲跌百分比之差幅在百分之四以上，且其成交量達三千交易單位以上者。
(2) Where, on trading volume of 3,000 trading units or more, the percentage of increase or decrease in the intraday transaction price exceeds 6 percent, while also exceeding the percentage of increase or decrease in the TSEC Capitalization Weighted Stock Index by 4 percent or more.
(四)依本要點規定發布交易資訊或採取處置措施者。
(4) Where trading information is announced or disposition measures adopted pursuant to these Directions.
(五)經市場傳聞或媒體報導或經本公司電腦系統分析有重大人為操縱情事並經簽報核准者。
(5) Where market rumors, media reporting, or TSEC computer analysis finds significant manipulation, and signed approval is granted pursuant to a report of the incident.
(六)其他經主管機關指定者。
(6) Other circumstances designated by the competent authority.
有關認購(售)權證、附認股權公司債及附認股權特別股當日盤中振幅、漲跌百分比依下列公式計算。
The amplitude of intraday transaction price changes or the percentage of intraday increase or decrease in price for call (put) warrants, corporate bonds with warrants, and preferred stock with warrants is calculated according to the following formula:
當日盤中振幅、漲跌百分比＝該認購(售)權證、附認股權公司債或附認股權特別股成交價變動金額÷〔標的證券之當日開盤競價基準(投資組合之認購(售)權證，取其組合證券中最大者)×當日行使比率〕×100％，且與標的證券之振幅、漲跌百分比(投資組合之認購(售)權證，取其組合證券振幅、漲跌百分比之平均值)計算其差幅。
The intraday amplitude of price change or percentage of increase or decrease in price = the monetary value of price fluctuation in the call (put) warrant, corporate bond with warrant, or preferred stock with warrant ÷ [the reference bid price at market opening for the given underlying security (or for call (put) warrants on baskets of securities, the largest security included) × the exercise ratio for the given day] × 100%, and expressed as the difference between this figure and the percentage amplitude or the percentage increase or decrease in price of the underlying security (or for call (put) warrants on baskets of securities, the average value of the percentage amplitude or the percentage increase or decrease in price).
三、本公司分析發現證券商當日受託買賣前條所列之有價證券有左列情形之一時，即於收盤後以書面通知該證券商內部稽核主管或營業部門主管，並副知該證券商總公司總經理，外國證券商在台設立分支機構者，通知其分公司經理人注意，以確保證券交割安全。
3.
To ensure security of settlement for securities trades, when TSEC analysis discovers any of the following circumstances in intraday trading at a securities firm involving the securities listed in the preceding point, it will, promptly after market closing, issue written notice to the internal auditing or operations department of the aforesaid securities firm, with a copy to the general manager of its head office; in the case of the Taiwan branch office of a foreign securities firm, it will bring the matter to the attention of the branch office manager:
(一)投資人於該證券商委託買賣該有價證券之差額超過新台幣三億元並超過該證券商淨值一倍，且其委託買進(賣出)金額占該有價證券總委託買進(賣出)金額百分之二十以上。
(1) Where the difference between an investors′ purchase/sale orders for the given security at the given securities firm exceeds NT$300 million and also exceeds one time the net worth of the given securities firm, and where the volume it purchased (or sold) on consignment accounts for 20 percent or more of the total monetary volume of consigned purchases (or sales) of the given security.
(二)證券商受託買賣該有價證券之差額超過新台幣五億元並超過該證券商淨值一?五倍，且其受託買進(賣出)金額占該有價證券總委託買進(賣出)金額百分之四十以上。
(2) Where the difference between orders accepted by a securities firm for purchase/sale of the given security exceeds NT$500 million and also exceeds 1.5 times the net worth of the given securities firm, and where the volume it accepted in consignments for purchases (or sales) accounts for 40 percent or more of the total monetary volume of all consignments for purchases (or sales) of the given security.
(三)投資人於該證券商成交買賣該有價證券之差額超過新臺幣一億元並超過該證券商淨值之○?三倍，且其成交買進或賣出金額占該有價證券總成交金額之百分之十以上。
(3) Where the difference between an investor′s confirmed purchases/sales of the given security through the given securities firm exceeds NT$100 million and also exceeds 0.3 times the net worth of the given securities firm, and where the volume of its confirmed purchases (or sales) accounts for 10 percent or more of the total monetary volume of all confirmed trades in the given security.
(四)證券商成交買賣該有價證券之差額超過新臺幣二億元並超過該證券商淨值之一倍，且其成交買進或賣出金額占該有價證券總成交金額之百分之二十以上。
(4) Where the difference between confirmed purchases/sales of the given security by a securities firm exceeds NT$200 million and also exceeds one time the net worth of the given securities firm, and where the volume of the confirmed purchases (or sales) thereby accounts for 20 percent or more of the total monetary volume of confirmed trades in the given security.
本公司對於達前項第一款或第二款規定之證券商，得於買賣申報之委託或交易時間內先以電話通知第一項人員。
When the circumstances under subparagraphs 1 or 2 of the preceding paragraph apply to a securities firm, the TSEC may inform the persons referred to in paragraph 1 by telephone within the period when the trading order is consigned or the trade is made.
四、本公司於每日收盤後，即分析股票、受益憑證、轉換公司債、附認股權公司債、附認股權特別股、存託憑證及認購(售)權證等有價證券之交易，發現有左列情形之一時，公告其交易資訊(漲跌幅度、成交量、週轉率、集中度、本益比、股價淨值比、券資比等)：
4.
At the close of trading each day, the TSEC will analyze trading in securities, including stocks, beneficiary certificates, convertible corporate bonds, corporate bonds with warrants, preferred stocks with warrants, depositary receipts, and call (put) warrants.
Upon discovery of any of the following circumstances, the TSEC will announce related trading information (such as the degree of upward or downward movement in prices, trading volume, turnover rate, degree of concentration, price-to-earnings ratio, price to book ratio, or long/short ratio):
(一)最近一段期間累積之收盤價漲跌百分比異常者。
(1) An irregularity in the cumulative percentage of increase or decrease in the closing price during the most recent period.
(二)最近一段期間起、迄兩個營業日之收盤價漲跌百分比異常者。
(2) An irregularity in the percentage of increase or decrease in the closing price between the initial and final business days of the most recent period.
(三)最近一段期間累積之收盤價漲跌百分比異常，且其當日之成交量較最近一段期間之日平均成交量異常放大者。
(3) An irregularity in the cumulative percentage of increase or decrease in the closing price during the most recent period, combined with an unusually large increase in the intraday volume of trade relative to the daily average in the most recent period.
(四)最近一段期間累積之收盤價漲跌百分比異常，且其當日之週轉率過高者。
(4) An irregularity in the cumulative percentage of increase or decrease in the closing price during the most recent period, combined with an unusually high intraday turnover rate.
(五)最近一段期間累積之收盤價漲跌百分比異常，且證券商當日受託買賣該有價證券之成交買進或賣出數量，占當日該有價證券總成交量比率過高者。
(5) An irregularity in the cumulative percentage of increase or decrease in the closing price during the most recent period, combined with intraday consigned trading of the given security at a securities firm in which confirmed purchases or sales account for an unusually high percentage of the intraday volume of trade in the given security.
(六)當日及最近數日之日平均成交量較最近一段期間之日平均成交量明顯放大者。
(6) A significant increase in the daily volume of trading for a given day or several recent days relative to the daily average volume of trade for the most recent period.
(七)最近一段期間之累積週轉率明顯過高者。
(7) A significantly high cumulative turnover rate for the most recent period.
(八)本益比及股價淨值比異常，且符合包括當日週轉率過高、較其所屬產業類別股價淨值比偏高、任一證券商當日成交買進或賣出金額占當日該有價證券總成交金額比率過高或任一投資人當日成交買進或賣出金額占當日該有價證券總成交金額比率過高等四種情形之任二者。
(8) An irregular price-to-earnings rate or price-to-book ratio, combined with any two of the following four circumstances: an unusually high intraday turnover; a relatively high price-to-book ratio for stocks of the given industry; an intraday value for confirmed purchases or sales of the given security at any single securities firm that accounts for an unusually high proportion of the total intraday value of confirmed trades in the given security; or an intraday value for confirmed purchases or sales of the given security by any single investor that accounts for an unusually high proportion of the total intraday value of confirmed trades in the given security.
（九）最近一段期間之券資比明顯放大者。
(9) A significant increase in the long/short ratio during the preceding period.