Taiwan-listed stocks can normally move at most 10% from the reference price — usually the previous close — in a session, and limit prices are rounded inward to the exchange tick, so TSMC’s NT$2,490 close (Oct 2026) implied a NT$2,245–2,735 band. Here is how limit-up queues, frozen quotes, and delayed price discovery actually work.
Taiwan-listed companies must file consolidated monthly revenue by the 10th of the following month, quarterly financials within 45 days of quarter-end for most non-financial issuers (banks, insurers and financial holding companies follow modified deadlines), and audited annual accounts by end-March — all on MOPS. Here is the full calendar, why the numbers are cumulative, and where to find English filings at emops.twse.com.tw.
By the time TSMC’s quarterly investor conference begins, the quarter’s revenue is already public — Taiwan requires monthly sales filings by the 10th. What actually moves the stock: gross-margin guidance, capex plans, 3nm/2nm node mix, AI platform share, and the day-to-day change in the TSM ADR’s structural 15-25% premium over Taipei.
TWSE publishes securities-lending (借券) short balances for every shortable stock daily after the close — the institutional short channel, separate from retail margin shorts. Here is where to find the data, how to read a balance like TSMC’s 15.2 million borrowed-and-sold shares (Sept 2026), and why a rising balance is often consistent with hedging, not a bearish bet.
On ex-dividend day, Taiwan exchanges cut a stock’s reference price by the full cash payout; 填息 (tianxi, ‘filling the gap’) means climbing back to the pre-ex price. How the July–September season works, why a smaller gap needs a smaller move to fill, and how the 21% withholding tax changes the math for foreign holders.
Taiwan’s headline policy rate — the rediscount rate — is a signaling device almost no bank actually borrows at. The real monetary work happens through daily certificate-of-deposit issuance, reserve requirements, mortgage credit controls, and the managed New Taiwan dollar. Here is how to read all five levers.
TWSE and TPEx publish every margin-eligible stock’s outstanding margin loans each evening for free, and once an account’s maintenance ratio falls below roughly 130% the broker issues a margin call — with forced selling following only if collateral is not restored by the deadline. Here is how to read Taiwan’s retail leverage data step by step — and why sharp margin contractions, not rising balances, tend to mark market bottoms.
Foreign investors cannot simply open a Taiwan brokerage account the way locals do: you must first register with the TWSE as a FINI or FIDI — a filing handled through a locally appointed agent, which under current TWSE account-opening rules can be a securities broker or a custodian bank — and only then open a local broker account. Custody arrangements depend on your circumstances. Here is each step, what differs for individuals versus institutions, and the ADR/ETF alternatives if you skip it.
TAIFEX Taiwan index futures stop trading on the third Wednesday of each month, and the final settlement price is an arithmetic average of TAIEX values over the last 30 minutes of the spot session (13:00-13:30 Taipei) — not the closing print. Here is how the calendar, the averaging window, and expiry-week rollover actually work, with a worked example reading foreign net open interest.
TAIFEX publishes foreign investors’ net open interest in TAIEX futures and the options put/call OI ratio every trading day — but a large negative net OI is usually a hedge, not a bearish bet. Here is how to read both gauges, with a worked example from real August 2026 data, the practitioner heuristics and their limits, and the divergences that matter.