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Market capitalization history
/stable/market-cap-history10 tokens per callReturns the daily market cap of one stock, calculated as the split-adjusted close × shares outstanding (excluding treasury stock) from the latest disclosed fiscal period, so buybacks and share issuance are reflected. Each fiscal period is used only from its disclosure date, so the past is never rewritten with information that was not yet public. A single request covers at most 10 years, and prices start on 4 January 2010 (or the listing date for stocks listed later).
What you can do with this API
- check_circleChart how a company's size has changed over time
- check_circleSee how buybacks affected shares and market cap
- check_circleCompare market cap trends with rivals
Example URL
https://api.zenithcode.net/stable/market-cap-history?symbol=7203&from=2025-10-01&to=2026-10-01&interval=monthlyShown without percent-encoding for readability. Non-ASCII values are encoded automatically when sent.
Parameters
| Parameter | Required | Description | Example |
|---|---|---|---|
symbolstring | Required | Securities code (4 characters, e.g. 7203 = Toyota Motor; alphanumeric codes such as 130A also work) | 7203 |
fromstring | Optional | Start date (YYYY-MM-DD). Defaults to one year before the end date | 2025-10-01 |
tostring | Optional | End date (YYYY-MM-DD). Defaults to today | 2026-10-01 |
intervalselect | Optional | daily (default), weekly (last trading day of each week) or monthly (last trading day of each month) Allowed values: daily, weekly, monthly | monthly |
Try it
Run it with your own parameters and check the response as a table, JSON or CSV. Sign-in required; each run uses 10 tokens.
travel_exploreTry in the API ViewerResponse example (real data)
Response fields
symbol | string | |
date | string | |
closeClose as traded then, not split-adjusted (JPY) | number | Close as traded then, not split-adjusted (JPY) |
adjustedClosePer-share values and prices are also returned restated to the current share count, so periods before and after splits or consolidations are comparable. A factor of 1 means no adjustment. | number | Per-share values and prices are also returned restated to the current share count, so periods before and after splits or consolidations are comparable. A factor of 1 means no adjustment.How it is calculated → |
sharesThe API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted). | number | The API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted).How it is calculated → |
sharesBasisThe API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted). | string | The API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted).How it is calculated → |
marketCapThe API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted). | number | The API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted).How it is calculated → |
sharesPeriodThe API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted). | string | The API multiplies each day’s adjusted close by the latest share count published by that day (split-adjusted).How it is calculated → |
Related APIs
FAQ
How many tokens does one call use?expand_more
10 tokens per call, regardless of how many rows come back. Your monthly allowance depends on your plan.
Do I need an account to try it?expand_more
Use the API Viewer to run it with your own parameters. Sign up for free and sign in (no credit card). Each run uses this API's tokens.
Can I get CSV instead of JSON?expand_more
Add format=csv to the URL to get CSV, ready for spreadsheets or pandas.
Can I get labels in English?expand_more
With neither lang nor Accept-Language, labels such as sector names are returned in English; add lang=ja or send Accept-Language: ja for Japanese. Company and sector names are always returned in both languages as nameJa / nameEn and sectorJa / sectorEn. Field names are the same in both languages.