On May 7, 2025, TAI FEX revised Market maker quotations, fee reductions, and other related regulations; in accordance with articles 6 and 9 of Market maker regulations.
Adjusted the relevant quotation regulations for Taiwan index options in order to accommodate the introduction of weekly contracts that expire on Fridays.
These changes will take effect starting Jul. 1, 2025.
In Jun. 2025, TAI FEX revised trading rules, specifications for options, see #257595.
On Apr. 30, TAI FEX added stock index option that expires on Fridays.
TAI FEX revised trading rules and specifications of Taiwan stock exchange stock index option contracts, to introduce index options weekly contracts expiring on Fridays.
Document dated Apr. 30, 2025, received from TAI FEX May 2, summarized on May 6.
Amendments
TAI FEX added a weekly contract during regular trading hours on Friday, with Friday as the trading start date and the following Friday as the last trading day and expiry date.
TAI FEX amended the relevant specifications as well as the trading rules accordingly.
Effectiveness
The implementation date will be announced separately.
May 5, 2025 Margin Collection
On May 5, 2025, TAI FEX announced revision of option contract margin collection method, to align with above weekly contract during regular trading hours on Friday.
The implementation date will be announced separately.
May 7, 2025 Market Maker Guidelines
On May 7, 2025, TAI FEX revised Market maker quotations, fee reductions, and other related regulations; in accordance with articles 6 and 9 of Market maker regulations.
Adjusted the relevant quotation regulations for Taiwan index options in order to accommodate the introduction of weekly contracts that expire on Fridays.
These changes will take effect starting Jul. 1, 2025.
In Jun. 2025, TAI FEX revised trading rules, specifications for options, see #257595.
