Category: Announcement

[Data Lab] Waiker Data Search is live — Explore all data in one place

Try searching for a stock or investor you’re interested in.

You can now view data from insiders, institutions, and politicians all at once—no more checking them separately.

By searching a stock name, you can view all related data at a glance — including insider transactions, institutional investor activity, and politician transactions etc.

You can also view key insider trades and related news for the stock all in one place.

Check out trades by institutional investors and politicians, as well as major shareholder ownership and treasury stock transactions for the stock!

Search an investor’s name to see a full summary of when and how much they bought or sold.

When data connects, insights follow. Experience faster, deeper discovery with Waiker Data Search.

Go to Data Lab →

[BDR] New Dataset Released

A new API is now available!

You can easily access performance analytics on trades made by insiders, institutional investors, and politicians.

Preview

• Insider Trade Return Analysis API (API Guide / API Viewer)

• Institutional Investor Trade Return Analysis API (API Guide / API Viewer)

• Politician Trade Return Analysis API (API Guide / API Viewer)

[WG] Want to Follow Nancy Pelosi’s Trades? The U.S. Politician Trading Widget v1.0.0 is Here!

They say politics is just a side hustle—how about following Nancy Pelosi’s trades?

Now, you can easily track stock transactions made by U.S. politicians and analyze trades related to the committees they belong to.

• Top-performing stocks held by politicians

• Stocks politicians are paying attention to

• Stocks related to sectors overseen by political committees

• Latest transactions of key politicians

Check out Politician Transaction Widget →

[Data Labs] Insider Transaction News Goes Live—And Stock Prices Follow!

Does insider transaction news actually impact investment decisions?

Now, you can check how much stock prices have risen after news about insider transactions is published.

To support better investment decisions, we now provide recent stock prices, average insider purchase prices, and transaction amounts directly within the insider trading news section. Our goal is to enhance the feature so that you can invest using just the news alone.

Explore Insider Transaction News →

[Data QC] Corrected Disclosure Data Now Available with Waiker’s Data QC System

Because disclosure data is manually entered, errors occur countless times daily. While some are corrected through revised disclosures, many remain uncorrected, making it difficult to ensure data integrity using raw parsed data alone.

To address this issue, Waiker has been providing error codes for detected disclosure errors. With this update, we now provide not only error codes but also corrected values, affected fields, and detailed error messages!

• AS-IS: Disclosure Error Detection → Provides an Error Code
• TO-BE : Disclosure Error Detection → Provides an Error Code → Provides Corrected Values

While many stock data providers display disclosure data as-is despite potential errors, Waiker goes further by offering detailed error information and corrected values, ensuring higher data reliability.

Check out the Developer Center →

[BDR] New Data Additions

This update also brings new datasets to BDR:

• Insider Transaction News API: Get updates on companies involved in insider transactions.

• Subsidiary API: Retrieve information on a company’s subsidiaries.

• Market Relisting API: Identify stocks that have changed their listing market.

Access the API Guide →

Preview Data in API Viewer →

Hello, this is Waiker team with the announcement of our second release of 2025.

[Data Lab] Want to Uncover the Meaning Behind Hidden Trades? ‘Insider Transaction News’ Launched

We received feedback from users who were curious about whether insider trades held any significant meaning and what the recent trends among insiders were.

Reading through all the news articles to find reasons behind these trades can be time-consuming. To help with this, Waiker uses AI technology to gather and analyze essential information related to trades and summarize it into concise articles.

Insider Transaction News will provide compact insights from insider trading data, recent trends, and AI expert analyses.

View Insider Transaction News →

[Data Lab] The Secret of Top Investors: ‘Insider Transaction Screener’ Launched

Discover insights from real-time insider transaction data using the Insider Transaction Screener.

You can search by ticker, stock, insider name, and more, along with filters suggested by Waiker’s expertise. This tool is designed to help uncover valuable data-driven insights. A 7-day free trial is available now, so try it out today.

Explore Insider Transaction Screener →

Other Updates

[Data Lab] Explore AI-Powered Services in the Market Data Lab

Try out various features and datasets, including Waiker News, Waiker AI vs. LLM Comparison Service, and the Insider Transaction Screener.

If you find Waiker’s experiments interesting, sign up to receive notifications for upcoming experiments.

Go to Data Lab →

[BDR] New Datasets Released in This Update

• A new API for checking the composition of passive fund holdings has been added to BDR.

• A new API allows you to view monthly insider buy/sell ratios.

• View API Guide →

• Preview Data in API Viewer →

[Homepage] Now You Can Chat with Us in Real Time

Click the chat button in the lower right corner of the homepage for quick and easy support.

The Waiker team will assist you as quickly as possible with service usage, product purchases, and other inquiries.

Contact Us →

[Homepage] Check Release Notes in the Developer Center

A new Release Note page has been added to let you easily track new features, improvements, and important announcements all in one place.

View Release Notes →