Answer
Taiwan-listed companies are required to report monthly revenue, generally by the 10th of the following month — a monthly-frequency fundamental signal that most markets, including the US, do not publish. TW Market Data provides this monthly revenue series back to January 2010, with the statutory filing timeline captured, so you can build point-in-time features without look-ahead bias.
Monthly revenue is an early, high-frequency read on a company's momentum, arriving weeks before quarterly financials. For factor research and nowcasting it is a genuinely differentiated Taiwan dataset.
Where an exact announcement timestamp is unavailable, the statutory filing deadline is used as the knowledge date and labeled as such, so backtests stay point-in-time-safe.
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