VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View ChartMillView DATAROMABack to Home

Head-to-head

ChartMill vs DATAROMA comparison

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

Quick takeaways

ChartMill adds Screeners, Watchlist, News, Alerts, Calendar, Data Visualizations, Scores, Financials, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, and Position Sizing coverage that DATAROMA skips.

DATAROMA includes Investor Holdings, and 13F 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..

DATAROMA is known for: Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity., Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals., and Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings..

ChartMill logo

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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DATAROMA logo

DATAROMA

dataroma.com

Hands-on review

Free resource that tracks Superinvestor 13F filings and insider Form 4 activity. Features include manager portfolios, aggregated holdings, insider trade feeds, and stock idea rankings. Quotes are sourced via Intrinio, with charts and fundamentals powered by TradingView. The site requires no login or account to use.

Platforms

Web

Pricing

Free

Quick highlights

  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.
  • S&P 500 'Value Ranking' grid for idea generation and stock discovery.

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Overlap

Shared focus areas

2 overlaps

Mutual strengths include Stock Ideas, and Insider Data.

Where they differ

ChartMill

Distinct strengths include:

Screeners
Watchlist
News
Alerts
Calendar
Data Visualizations
Scores
Financials
  • 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.

DATAROMA

Distinct strengths include:

Investor Holdings
13F
  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.

Feature-by-feature breakdown

AttributeChartMillDATAROMA
Categories

Which research workflows each platform targets

Shared: Stock Ideas, Insider Data

Unique: Screeners, Watchlist, News, Alerts, Calendar, Data Visualizations, Scores, Financials, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, Position Sizing

Shared: Stock Ideas, Insider Data

Unique: Investor Holdings, 13F

Asset types

Supported asset classes and universes

Stocks, ETFs

Stocks, ETFs

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

  • Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity.
  • Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals.
  • Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings.
  • ‘RealTime’ activity feed highlighting notable Superinvestor trades as they are reported.
  • S&P 500 'Value Ranking' grid for idea generation and stock discovery.
  • Aggregated 'Grand Portfolio' showing combined Superinvestor holdings and ownership statistics.
Tested

Verified by hands-on testing inside Find My Moat

Yes

Yes

Editor pick

Featured inside curated shortlists

Standard listing

Standard listing

Frequently Asked Questions

Which workflows do ChartMill and DATAROMA both support?

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

Do ChartMill and DATAROMA require subscriptions?

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

How can you access ChartMill and DATAROMA?

Both ChartMill and DATAROMA 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 DATAROMA stands out for Tracks portfolios of well-known 'Superinvestors' through SEC 13F filings, with detailed views of holdings, buys/sells, and quarter-to-quarter activity., Stock pages display Superinvestor ownership counts, a defined 'Hold Price' (quarter-end close), insider transaction totals over the past six months, plus TradingView charts and fundamentals., and Real-time insider transaction feed based on SEC Form 4 filings, with filterable listings..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Recommended tools

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Curation & Accuracy

This directory blends AI‑assisted discovery with human curation. Entries are reviewed, edited, and organized with the goal of expanding coverage and sharpening quality over time. Your feedback helps steer improvements (because no single human can capture everything all at once).

Details change. Pricing, features, and availability may be incomplete or out of date. Treat listings as a starting point and verify on the provider’s site before making decisions. If you spot an error or a gap, send a quick note and I’ll adjust.