VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View ChartMill View OpenInsider Back to Home

Head-to-head

ChartMill vs OpenInsider comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

ChartMill adds Stock Ideas, Watchlist, News, Alerts, Calendar, Scores, Financials, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, and Position Sizing coverage that OpenInsider skips.

OpenInsider includes Regulatory Filings Monitoring categories that ChartMill omits.

ChartMill highlights: Technical and fundamental screener for stocks and ETFs, with interactive charts, ratings, watchlists, and trading ideas., Pre-market and after-hours movers screener for U.S. markets (NYSE, NASDAQ, AMEX)., and Ability to create custom expressions and filters in the screener for advanced screening logic..

OpenInsider is known for: Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks., Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales., and Aggregate Buy–Sell charts to visualize overall insider sentiment..

ChartMill

chartmill.com

Hands-on review

A web-based research suite combining stock/ETF screeners, charts, ratings, watchlists, and trading ideas. ChartMill supports server-side email alerts, custom screeners with advanced filters, and both technical and fundamental data. Analyst estimates and some premium data require a paid subscription. U.S. pre-market and after-hours coverage includes NYSE, NASDAQ, and AMEX.

Platforms

Web

Pricing

Free

Subscription

Quick highlights

Technical and fundamental screener for stocks and ETFs, with interactive charts, ratings, watchlists, and trading ideas.
Pre-market and after-hours movers screener for U.S. markets (NYSE, NASDAQ, AMEX).
Ability to create custom expressions and filters in the screener for advanced screening logic.
Historical screener mode allows users to run any screen as of a past date.
Server-side email alerts for price moves, setups, earnings, news, insider activity, fundamentals, analyst ratings, and saved screens (alerts are delayed, not real-time).

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OpenInsider

openinsider.com

Editor’s pick Hands-on review

Free web-based screener for U.S. SEC Form 4 filings, tracking insider buys and sells in real time. Data is sourced directly from SEC.gov and refreshed between 6:00 and 22:00 ET on U.S. business days.

Platforms

Web

Pricing

Free

Quick highlights

Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks.
Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales.
Aggregate Buy–Sell charts to visualize overall insider sentiment.
Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend.
Ability to drill down by sector, industry, ticker, or individual insider profile.

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Overlap

Shared focus areas

3 overlaps

Mutual strengths include Screeners, Data Visualizations, and Insider Data.

Where they differ

ChartMill

Distinct strengths include:

Analyst Recommendations

Technical and fundamental screener for stocks and ETFs, with interactive charts, ratings, watchlists, and trading ideas.
Pre-market and after-hours movers screener for U.S. markets (NYSE, NASDAQ, AMEX).
Ability to create custom expressions and filters in the screener for advanced screening logic.
Historical screener mode allows users to run any screen as of a past date.

OpenInsider

Distinct strengths include:

Regulatory Filings Monitoring

Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks.
Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales.
Aggregate Buy–Sell charts to visualize overall insider sentiment.
Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend.

Feature-by-feature breakdown

Attribute	ChartMill	OpenInsider
Categories Which research workflows each platform targets	Shared: Screeners, Data Visualizations, Insider Data Unique: Stock Ideas, Watchlist, News, Alerts, Calendar, Scores, Financials, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, Position Sizing	Shared: Screeners, Data Visualizations, Insider Data Unique: Regulatory Filings Monitoring
Asset types Supported asset classes and universes	Stocks, ETFs	Stocks
Experience levels Who each product is built for	Beginner, Intermediate, Advanced	Beginner, Intermediate, Advanced
Platforms Where you can access the product	Web	Web
Pricing High-level pricing models	Free, Subscription	Free
Key features Core capabilities called out by each vendor	Unique Technical and fundamental screener for stocks and ETFs, with interactive charts, ratings, watchlists, and trading ideas. Pre-market and after-hours movers screener for U.S. markets (NYSE, NASDAQ, AMEX). Ability to create custom expressions and filters in the screener for advanced screening logic. Historical screener mode allows users to run any screen as of a past date. Server-side email alerts for price moves, setups, earnings, news, insider activity, fundamentals, analyst ratings, and saved screens (alerts are delayed, not real-time). Interactive stock charts with multiple indicators (RSI, MACD, etc.), saved chart configurations, and multi-symbol view.	Unique Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks. Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales. Aggregate Buy–Sell charts to visualize overall insider sentiment. Detailed filing tables with trade/filing dates, transaction codes, prices, quantities, and values, with an integrated code legend. Ability to drill down by sector, industry, ticker, or individual insider profile. CSV export links on lists and insider profile pages for offline use.
Tested Verified by hands-on testing inside Find My Moat	Yes	Yes
Editor pick Featured inside curated shortlists	Standard listing	Highlighted

Frequently Asked Questions

Which workflows do ChartMill and OpenInsider both support?

Both platforms cover Screeners, Data Visualizations, and Insider Data workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do ChartMill and OpenInsider require subscriptions?

Both ChartMill and OpenInsider keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access ChartMill and OpenInsider?

Both ChartMill and OpenInsider prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

ChartMill differentiates itself with Technical and fundamental screener for stocks and ETFs, with interactive charts, ratings, watchlists, and trading ideas., Pre-market and after-hours movers screener for U.S. markets (NYSE, NASDAQ, AMEX)., and Ability to create custom expressions and filters in the screener for advanced screening logic., whereas OpenInsider stands out for Real-time screener of SEC Form 4 insider trading disclosures for U.S. stocks., Prebuilt screeners for quick discovery: Latest Purchases/Sales, $25k+ CEO or CFO buys, Cluster Buys, and weekly/monthly Top Purchases and Sales., and Aggregate Buy–Sell charts to visualize overall insider sentiment..

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