Every Taiwan-listed company must publish unaudited monthly revenue by the 10th of the following month — a disclosure cadence almost no other market mandates. Here is where to find the filings (MOPS, TWSE OpenAPI), how analysts nowcast TSMC’s quarter from two monthly prints, and the calendar and FX traps to avoid.
TSMC carries roughly 35% or more of the TAIEX’s capitalization weight, so a 1% move in the stock mechanically shifts Taiwan’s benchmark by about 0.35 percentage points before any other share trades. Here is how to decompose any TAIEX session into its TSMC and non-TSMC components — with worked examples from real July 2026 data.
Every Taipei trading day ends with one release that sets the next morning’s narrative: the three institutional investors report. Here is what foreign investors, investment trusts, and dealers each represent, how to read net buy/sell streaks and per-stock T86 data, and how to cross-check cash flows against TAIFEX futures positioning before drawing conclusions.
Taiwan’s equity market runs 09:00-13:30 Taipei time, settles T+2, and shifts every obligation forward one business day when an unscheduled closure hits. A field guide to the trading calendar, call auctions, the after-hours session, and the time-zone gap for overseas investors.