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Facts & statistics

Market facts

Long-run statistics for Taiwan equities, each with its sample period and as_of

Seasonality

Monthly return distributions and hit rates, with sample sizes

Institutional flow

Seasonality in the breadth of institutional net buying

Limit events

How often limit moves happen, and how concentrated they are

Delisting

Delisting counts and survival spans — the basis for avoiding survivorship bias

Rule changes

A timeline of trading-rule changes — the premise for reading historical data

Data & exploration

Dataset catalogue

Every dataset, its coverage, and how often it updates

Playground

Call the API from the browser, without a key

Market today

Today's market at a glance

Stock analysis

The entry point for looking at one instrument

Market heat map

The whole market in one picture — area is market cap, colour is revenue growth

Market calendar

Statutory disclosure deadlines — the day a figure may legally first be known

Platform capabilities

Product overview

What TWMD provides, and who it is built for

Verifiable proof

Signed checkpoints and per-row inclusion proofs

Data quality

Reconciliation, gap handling, and quality status

Methodology

How the figures are computed, and on what basis

Auditable execution

Tie a trading decision back to the data it saw

Connect your broker

Bring TWMD into an existing order and research workflow

Developers

Documentation

API reference, dataset pages, and integration guides

Quick start

Authentication and your first request

Integrate by role

Separate paths for quant research, data engineering, and app development

Connect over MCP

Point an agent straight at TWMD

MCP registry

The published MCP tool list and its signed manifest

Webhooks

Have your system told when data updates

Learn

Blog

Long-form writing on data, method, and market structure

Answers

Specific answers to specific questions, with sources

Topics

Industry chains and thematic relationships

Help centre

Account, billing, and usage questions

Glossary

Definitions for Taiwan-market and data terms

Compare & status

Why TWMD

A point-by-point comparison with FinMind and TEJ

Migrate from FinMind

Field mapping and migration steps

Migrate from FinLab

Field mapping and migration steps

Migrate from TEJ

Field mapping and migration steps

Status

Service availability and incident history

Security & trust

Trust centre

What we claim, and the limits on each claim

Security

Architecture, access control, and incident handling

Security facts

The items you can verify from outside

Security evidence

SBOM, ASVS mapping and threat model — including the three controls we do not meet.

Self-assessment

Item-by-item answers for a procurement questionnaire

Compliance & standards

Compliance mapping

Evidence primitives mapped onto FSB, IOSCO, and SR 26-2

Standards & interop

Term-by-term mapping onto published standards, and where it does not map

Provenance & C2PA

A machine-readable origin graph, fetchable without a key

Licensing

How the data may be used and redistributed

Adoption

Evaluate

Seven checks you can run yourself, without an account

Talk to sales

Enterprise plans, quotas, and contract detail

Pricing
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TW Market Data

Taiwan market-data infrastructure, built for AI agents and quantitative workflows.

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© 2026 TW Market Data

TW Market Data (TWMD) provides historical data and statistics, not investment advice; investment decisions and their risks are your own.

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Taiwan market heat map

The whole market in one picture: area is market capitalisation, colour is the metric you choose. A blank tile means there is no figure — not that the figure is flat. Gaps are marked rather than filled in, and every value resolves back to an official source and to a signed checkpoint.

Red is revenue growth against the same month last year; green is decline. This is not the day's price move — no figure on this page is a price.

The image includes the revenue month, the knowledge date, the market-cap date and what the colours mean — a screenshot of the chart alone would carry none of that.

Choosing a month changes which revenue month is coloured. It does not rewind the market to that month — figures may have been revised since, and this view does not restore what was knowable at the time.

-60%-40%-20%0%+20%+40%+60%

Beyond ±60% the colour stops changing, so one outlier cannot flatten the rest.

Has revenue, no comparable monthNo revenue figure at all

A blank tile is the absence of a year-on-year figure. It is not zero, and it is not flat.

1073 with a figure10 with revenue, no comparable month0 with no revenue figure

1 companies are not drawn: no official market capitalisation. 9105

Companies with no official market capitalisation are not drawn at a guessed size — on a treemap the area IS the claim, so inventing it would invent the only number the chart encodes. They are excluded and counted below.

Period 2026-07 · Knowledge date 2026-08-10 · internal_first_party

Questions

1Why are some companies missing?
A company with no official market capitalisation has no area to draw, and guessing one would fabricate the only quantity this chart encodes. OTC and emerging-board companies frequently have none. The count of excluded companies is shown under the chart.
2Is a grey tile the same as 0%?
No. Grey means there is no year-on-year figure — either no comparable month a year earlier, or no revenue row at all. Zero would mean the company grew by nothing, which is a claim this data cannot make.
3Can I check a number myself?
Yes. Every figure resolves to a row in the underlying dataset, and each published snapshot commits to a signed Merkle checkpoint you can verify through public proof endpoints without an account.