★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
13F Insight vs ChartMill
Pick 13F Insight instead if
13F Insight
Free • Contact for pricing · Web · API
- You want an API so you can script or automate things
- You care about regulatory filings monitoring and AI research, things ChartMill doesn't offer
Start here
ChartMill
Free • Paid plans available · Web
- You care about screeners, stock ideas, and stock comparison, things 13F Insight doesn't offer
- You trade often and need tooling built for speed
Skip both if: Neither one clicks with how you research; there are strong third options.
See alternativesOutbound links may include affiliate or sponsor codes.
Our take
The bottom line
13F Insight and ChartMill cover a lot of the same ground (8 shared categories, including data visualizations, watchlist, and institutional ownership), so for the basics you won't go far wrong with either. ChartMill simply does more: 24 categories to 13F Insight's 10, including screeners, stock ideas, and stock comparison. 13F Insight counters by being completely free.
What readers say
13F Insight
Vote once to reveal the community verdict.
ChartMill
Vote once to reveal the community verdict.
Key differences at a glance
- Global coverage
- ChartMill
- Broader coverage
- ChartMill24 vs 10 categories
- API access
- 13F Insight
- Asset coverage
- 13F InsightAdds options and bonds
- Free plan
- Both
See for yourself
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.ShowHide
How they stack up
The side-by-side table: pricing, platforms, data, and coverage at a glance.| Attribute | ||
|---|---|---|
| Pricing & plans | ||
Starting price | Free • Contact for pricing | Free • Paid plans available |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | 3 limits: Free: watchlist items: 5, Standard: watchlist items: 20 +1 more | Free: financials history: 4 years/quarters (free users, example pages). |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +3 more | Retail Traders, Pro Retail +6 more |
Categories covered | 10 | 24 |
Regions | North America | North America, Europe |
| Data & capabilities | ||
Data quality | — | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more |
Capabilities | AI summaries: Filings | Custom formulas and Universe builder |
Security | Encryption in transit | — |
| Try it | Visit 13F Insight | Visit ChartMill |
Where each one shines
What 13F Insight and ChartMill each do best.ShowHide
Where each one shines
What 13F Insight and ChartMill each do best.What 13F Insight does best
- Tracking institutional 13F holdings, Form 4 insider transactions, and 13D/G beneficial ownership reports from one filing-focused workspace.
- Research coverage for more than 30,000 institutional filers with indexed filing history, AUM context, current holdings, and position-change views.
- The AI Agent on filer, stock, and insider pages to ask plain-English questions over real SEC filings with sourced citations.
- Views for reviewing AI-generated filing summaries, position-change analysis, and unusual-activity alerts as a starting point for research.
- Tools for building filer and stock watchlists, with free and paid tiers setting different watchlist limits.
What ChartMill does best
- Screening for stocks and ETFs with technical, fundamental, dividend, valuation, growth, profitability, health, and custom-expression filters.
- Starting point: a large Trading Ideas library covering breakout, pullback, CANSLIM, Minervini, GARP, dividend, value, growth, and other screen templates.
- ChartMill ratings, technical setup views, analyzer pages, and fundamental reports to compare candidates.
- Tools for building watchlists, save screens, export screener results, and trigger alerts from price, setup, earnings, news, insider, fundamental, analyst, and saved-screen conditions.
- Multi-chart layouts, saved chart configurations, drawings, indicators, event markers, and watchlist-based charting.
Every detail we compared
Every tracked attribute for 13F Insight and ChartMill, side by side.ShowHide
Every detail we compared
Every tracked attribute for 13F Insight and ChartMill, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsOptionsBonds | StocksETFs |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailValue InvestorsGrowth InvestorsAnalysts | Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors |
Regions | North America | North AmericaEurope |
Coverage details | Countries: USIdentifiers: Ticker, CUSIP, and CIK | 17 countries9 exchangesIdentifiers: Ticker and ISIN |
| Data | ||
Data freshness | Not specified | 15-min DelayedEnd of Day |
Data granularity | Not specified | EODMinute |
| Access & integrations | ||
Export formats | Not specified | CSV |
| Plans & trust | ||
Security & compliance | Encryption in transit | Not specified |
Capability signals | AI summaries: Filings | Custom formulasUniverse builder |
Vendor & support | 13F InsightSupport: Email | ChartMill |
Green tags are exclusive to that tool in this comparison.
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.ShowHide
What you'll actually pay
Plans, billing, trials, and per-month pricing for both tools.| Tier | ||
|---|---|---|
| Free plan | Freewatchlist items: 5 | Freefinancials history: 4 years/quarters (free users, example pages). |
| Entry paid plan | Subscription“Standard”watchlist items: 20 | $34.97/mo“Monthly Subscription” |
| Top plan | Subscription“Pro”watchlist items: 100 | $299.97/yr“Annual Subscription + Free Course” |
| Custom / enterprise | Contact sales“Enterprise” | — |
Questions we keep getting
What's the difference between 13F Insight and ChartMill?
13F Insight leans toward data visualizations, watchlist, and institutional ownership, while ChartMill puts more weight on screeners, stock ideas, and stock comparison. They overlap in 8 categories, so for most people it comes down to workflow preference and price.
How much do 13F Insight and ChartMill cost?
Good news: both 13F Insight and ChartMill have free plans, so you can run them side by side and only pay if you hit a wall.
Does 13F Insight or ChartMill have an API?
13F Insight has an API for programmatic access and custom integrations. ChartMill doesn't, so you're working through its interface.
Should I choose 13F Insight or ChartMill?
It depends on what you're after. Pick 13F Insight if regulatory filings monitoring and AI research matter to you; go with ChartMill if you'd rather have screeners and stock ideas. And if you only need the basics both share, let price decide.
What asset classes do 13F Insight and ChartMill cover?
Both cover stocks and ETFs. 13F Insight also handles options and bonds.
Which covers international markets: 13F Insight or ChartMill?
ChartMill has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. 13F Insight is more region-specific, mainly North America.
Can I export data from 13F Insight and ChartMill?
ChartMill exports to CSV. 13F Insight is stingier about getting data out.
Is 13F Insight or ChartMill better for day trading?
ChartMill is the one positioned more for active traders. 13F Insight is the better fit if you care less about fast trading workflows and more about a calmer research process.
Which has a better stock screener: 13F Insight or ChartMill?
ChartMill has a stock screener for surfacing ideas; 13F Insight doesn't, and focuses its energy elsewhere.
Keep researching
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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.