TAIFEX daily trading volume also benefits from the record high daily trading volume of TXO, because of TXO’s share of more than 85% of the market, and reaches 1,038,450 contracts, the second highest daily trading volume in history after the record high of 1,049,624 contracts traded on Jan 18, 2006.
The main reasons for the record-breaking trading volume are the volatile stock market. The Taiwan Stock Exchange Capitalization Weighted Stock Index ("TAIEX") moved up and down drastically with trading range of more than 100 points for the day. The total trading volume in stock market also reached NT$190 billion.
Top-5 Daily Trading Volume of TXO
| Rank | TXO Daily Trading Volume | |
| 1 | 937,216 | 2006/5/5 |
| 2 | 930,373 | 2006/1/18 |
| 3 | 818,287 | 2006/4/10 |
| 4 | 751,990 | 2006/4/14 |
| 5 | 742,559 | 2006/5/4 |
Top-5 Daily Trading Volume of TAIFEX
| Rank | TAIFEX Daily Trading Volume | |
| 1 | 1,049,624 | 2006/1/18 |
| 2 | 1,038,450 | 2006/5/5 |
| 3 | 896,743 | 2006/4/10 |
| 4 | 842,080 | 2006/4/14 |
| 5 | 825,717 | 2006/5/4 |
