Today, JPX Market Innovation & Research, Inc. (JPXI), a leading global provider of Japanese financial market data, added “Share Buyback Information Data (TDnet/EDINET)” to J-Quants Pro, a data distribution service offering corporate users insightful data on Japanese financial markets via API, SFTP, and Snowflake. Additionally, estimated earnings announcement times were added to the “Earnings Announcement Dates & Times” dataset. Cashflow statements were also added to the “Financial Summary/Statements (BS/PL/CF)” dataset from October.

Share Buyback Information (New Dataset)
This dataset offers comprehensive information related to share buybacks for Japanese listed stocks. This offering consists of the following three datasets:
Share Buyback Information (TDnet)
The following information on share buybacks is promptly distributed following disclosure by the listed company via TDnet. This data enables users to capture a full range of information regarding share buybacks by listed companies.
- Details of buyback resolutions (number of shares, total amount, period)
- Status of buybacks (acquisition status for the previous month)
- Information on the completion of buybacks
Share Buyback Information (EDINET)
This dataset offers timely updates every 15 minutes on the status of share buybacks disclosed by listed companies via EDINET. This dataset includes daily buyback records for the previous month, which are not available in the TDnet dataset.
Off-Auction Share Buyback (ToSTNeT-3)
This dataset provides timely information on share buybacks conducted on ToSTNeT-3. Notifications of buybacks via ToSTNeT-3 are delivered after market close on the business day prior to the scheduled purchase, and results of the purchase are distributed at approx. 9:00 a.m. on the day of the transaction.
The "Share Buyback Information" dataset covers all Japanese domestic listed companies, acting as a centralized source for information. Historical data is also available, making it suitable for long-term analysis.
Addition of Scheduled Earnings Announcement Times Data
In response to user requests, estimated earnings announcement time data is being added to the Scheduled Dates for Earnings Announcements dataset.
This dataset provides the estimated time of announcement for the upcoming period’s earnings, as inferred by JPX’s proprietary model based on each listed company’s past announcement times. In addition to the time information, we also provide a trading session classification (pre-market, morning session, lunch break, afternoon session, post-market close). This eliminates the need for users to convert announcement times into trading session categories themselves.
Users can utilize this estimated time information to further empower risk management related to scheduled earnings announcements. With this addition, the dataset will be renamed “Earnings Announcement Dates & Times." The addition of historical data and a revision to pricing is also planned to accompany this expansion. Please use the contact address below for pricing details.
For data specifications, please refer to the following website:
Datasets and Available Periods
J-Quants Pro allows users to select the specific datasets they need through a convenient monthly subscription.
| Dataset | Data Period |
|---|---|
| Listed Issue Information | May 7, 2008~ |
| Trading by Type of Investors | January 16, 2008~ |
| Detail Breakdown Trading Data | January 4, 2010~ |
| Margin Trading Outstanding (Issues Subject to Daily Publication) | May 8, 2008~ |
| Margin Trading Outstanding (Weekly) | February 10, 2012~ |
| Financial Summary / Statements (BS/PL/CF) | Financial Summary Data: July 7, 2008~ Financial Statement Data (BS/PL/CF): January 13, 2009~ |
| Derivatives Trading Volume and Open Interest by Trading Participant / Open Interest by Issue | Derivatives Trading Volume by Participant: March 24, 2014~ Open Interest by Trading Participant: December 2, 2016~ Open Interest by Issue: June 14, 2021~ |
| Earnings Announcement Dates & Times | September 2014~ |
| ToSTNeT Super Large Lot | February 15, 2008~ |
| Stock Prices (OHLC) | May 7, 2008~ |
| Outstanding Short Selling Positions Reported | November 7, 2013~ |
| Off-Auction Distribution | January 2008~ |
| Off-Auction Share Buyback (ToSTNeT-3) | January 2008~ |
| Corporate Action Information | Dividends: February 20, 2013~ Other Data: May 8, 2015~ |
| TDnet on Snowflake | TDnet on Snowflake: Last 12 months~ TDnet on Snowflake T+1: Last 12 months (since April 2025 at this moment) TDnet on Snowflake Index: Last 5 years |
| Share Buyback Information (TDnet/EDINET) | TDnet: 2012~ EDINET: 2019~ This dataset includes Off-Auction Share Buyback (ToSTNeT-3) data. |
For details on pricing and external distribution, please refer to the following website. Please contact the address below for specific pricing information.
Apply for J-Quants Pro
If you are interested in accessing the new content or any of J-Quants Pro’s extensive range of other data, please apply via the contact form on the website listed below. Data specifications and sample data are also available.
Note: J-Quants Pro is only offered for corporate use.
For individual users, please refer to the J-Quants API service on the following website: