ChartMill adds Stock Ideas, Watchlist, News, Calendar, Scores, Financials, Insider Data, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, and Position Sizing coverage that SpotGamma skips.
VOL. XCIV, NO. 247
★ FINANCIAL TOOLS & SERVICES DIRECTORY ★
PRICE: 5 CENTS
Sunday, October 19, 2025
Head-to-head
ChartMill vs SpotGamma comparison
Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.
Quick takeaways
SpotGamma includes Options & Derivatives, Courses & Certs, and Blogs 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..
SpotGamma is known for: HIRO Indicator: see options activity and estimated hedging impact in real time—down to the second., Equity Hub: proprietary key levels, buy/sell indicators, and alerts across 3,500+ stocks & indices., and Volatility Dashboard: analyze IV across strikes/expirations; identify extremes/mispricing..
ChartMill has a free tier, while SpotGamma requires a paid plan.
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.
Categories
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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SpotGamma
spotgamma.com
Options‑market microstructure & dealer‑positioning analytics. Core modules: Equity Hub (key levels for 3,500+ US stocks/ETFs), HIRO real‑time options‑flow indicator (down‑to‑the‑second), an S&P 500 heatmap (TRACE), a Volatility Dashboard, FlowPatrol unusual flow insights, plus Compass & Scanners for setups. Widely used by intraday/index traders; integrates with TradingView, Bookmap, NinjaTrader, Sierra Chart, Thinkorswim, and more. No public API disclosed.
Platforms
Web
Pricing
Subscription
Quick highlights
- HIRO Indicator: see options activity and estimated hedging impact in real time—down to the second.
- Equity Hub: proprietary key levels, buy/sell indicators, and alerts across 3,500+ stocks & indices.
- Volatility Dashboard: analyze IV across strikes/expirations; identify extremes/mispricing.
- TRACE Heatmap: S&P 500 real‑time support/resistance & volatility zones.
- 0DTE volume/open‑interest indicator; delta, vanna & gamma modeling for indices.
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Overlap
Shared focus areas
3 overlapsMutual strengths include Screeners, Alerts, and Data Visualizations.
Where they differ
ChartMill
Distinct strengths include:
- 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.
SpotGamma
Distinct strengths include:
- HIRO Indicator: see options activity and estimated hedging impact in real time—down to the second.
- Equity Hub: proprietary key levels, buy/sell indicators, and alerts across 3,500+ stocks & indices.
- Volatility Dashboard: analyze IV across strikes/expirations; identify extremes/mispricing.
- TRACE Heatmap: S&P 500 real‑time support/resistance & volatility zones.
Feature-by-feature breakdown
| Attribute | ChartMill | SpotGamma |
|---|---|---|
Categories Which research workflows each platform targets | Shared: Screeners, Alerts, Data Visualizations Unique: Stock Ideas, Watchlist, News, Calendar, Scores, Financials, Insider Data, Analyst Recommendations, Analyst Price Targets, Analyst Forecasts, Position Sizing | Shared: Screeners, Alerts, Data Visualizations Unique: Options & Derivatives, Courses & Certs, Blogs |
Asset types Supported asset classes and universes | Stocks, ETFs | Stocks, ETFs, Options |
Experience levels Who each product is built for | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Platforms Where you can access the product | Web | Web |
Pricing High-level pricing models | Free, Subscription | Subscription |
Key features Core capabilities called out by each vendor | Unique
| Unique
|
Tested Verified by hands-on testing inside Find My Moat | Yes | Not yet |
Editor pick Featured inside curated shortlists | Standard listing | Standard listing |
Frequently Asked Questions
Which workflows do ChartMill and SpotGamma both support?
Both platforms cover Screeners, Alerts, and Data Visualizations workflows, so you can research those use cases in either tool before digging into the feature differences below.
Which tool offers a free plan?
ChartMill offers a free entry point, while SpotGamma requires a paid subscription. Review the pricing table to see how the paid tiers compare.
How can you access ChartMill and SpotGamma?
Both ChartMill and SpotGamma 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 SpotGamma stands out for HIRO Indicator: see options activity and estimated hedging impact in real time—down to the second., Equity Hub: proprietary key levels, buy/sell indicators, and alerts across 3,500+ stocks & indices., and Volatility Dashboard: analyze IV across strikes/expirations; identify extremes/mispricing..
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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.