VOL. XCIV, NO. 247
BEST INVESTING TOOLS COMPARISON
Tool details checked August 23, 2026
Tool Comparison
ChartMill vs InsideArbitrage
Pick ChartMill if
ChartMill
Free • Paid plans available · Web
- You want stock ideas, stock comparison, and scores.
- You trade often and need tooling built for speed
Pick InsideArbitrage if
InsideArbitrage
Free • From $100/mo · Web
- You want corporate actions & special situations, regulatory filings monitoring, and portfolio.
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
ChartMill and InsideArbitrage cover a lot of the same ground (12 shared categories, including screeners, data visualizations, and watchlist), so for the basics you won't go far wrong with either. ChartMill simply does more: 24 categories to InsideArbitrage's 17, including stock ideas, stock comparison, and scores. InsideArbitrage counters by keeping things simpler.
What readers say
ChartMill
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InsideArbitrage
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Key differences at a glance
- Broader coverage
- ChartMill24 vs 17 categories
- 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 • Paid plans available | Free • From $100/mo |
Free tier | Yes | Yes |
Free trial | — | — |
Plan limits | Free: financials history: 4 years/quarters (free users, example pages). | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | No |
Broker sync | — | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Beginner, Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | — |
Categories covered | 24 | 17 |
Regions | North America, Europe | — |
| Data & capabilities | ||
Data quality | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more | — |
Capabilities | Custom formulas and Universe builder | Universe builder |
| Try it | Visit ChartMill | Visit InsideArbitrage |
Where each one shines
What ChartMill and InsideArbitrage each do best.ShowHide
Where each one shines
What ChartMill and InsideArbitrage each do best.What ChartMill does best
- Screening for stocks and ETFs with technical, fundamental, dividend, valuation, growth, profitability, health, and custom-expression filters.
- Start from Trading Ideas templates for breakouts, pullbacks, CANSLIM, Minervini, GARP, dividends, value, and growth.
- ChartMill ratings, technical setup views, analyzer pages, and fundamental reports to compare candidates.
- Build watchlists, save screens, export results, and set alerts for prices, setups, earnings, news, insider activity, fundamentals, analyst changes, and screen results.
- Multi-chart layouts, saved chart configurations, drawings, indicators, event markers, and watchlist-based charting.
What InsideArbitrage does best
- Track announced mergers, spreads, calendars, deal updates and potential deals.
- Filter news, SEC filings and social posts for premium tracked-deal symbols.
- Research insider activity through transaction pages, weekly articles, cluster-buy screens and insider rankings.
- Follow buybacks, spinoffs, CVRs, tender offers, reverse splits, activist campaigns and management changes.
- Use 13F, 13D, 13G and Form 4 data for institutional and insider ownership context.
Every detail we compared
Every tracked attribute for ChartMill and InsideArbitrage, side by side.ShowHide
Every detail we compared
Every tracked attribute for ChartMill and InsideArbitrage, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFs | StocksETFs |
Experience | BeginnerIntermediateAdvanced | BeginnerIntermediateAdvanced |
Target audience | Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors | Not specified |
Regions | North AmericaEurope | Not specified |
Coverage details | 17 countries9 exchangesIdentifiers: Ticker and ISIN | Identifiers: Ticker and CIK |
| Data | ||
Data freshness | 15-min DelayedEnd of Day | Not specified |
Data granularity | EODMinute | Not specified |
| Access & integrations | ||
Export formats | CSV | Not specified |
| Plans & trust | ||
Capability signals | Custom formulasUniverse builder | Universe builder |
Vendor & support | ChartMill | InsideArbitrageSupport: Email |
Curation ratings | Not specified | Methodology 3/5Reliability 3/5UX 4/5 |
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 | Freefinancials history: 4 years/quarters (free users, example pages). | Free“Public Articles and Data” |
| Entry paid plan | $34.97/mo“Monthly Subscription” | $100/mo“Premium - Annual” |
| Top plan | $299.97/yr“Annual Subscription + Free Course” | $150/mo“Premium - Monthly” |
Questions we keep getting
What's the difference between ChartMill and InsideArbitrage?
ChartMill leans toward screeners, stock ideas, and stock comparison, while InsideArbitrage puts more weight on news, alerts, and calendar. They overlap in 12 categories, so for most people it comes down to workflow preference and price.
How much do ChartMill and InsideArbitrage cost?
Good news: both ChartMill and InsideArbitrage have free plans, so you can run them side by side and only pay if you hit a wall.
Should I choose ChartMill or InsideArbitrage?
It depends on what you're after. Pick ChartMill if stock ideas and stock comparison matter to you; go with InsideArbitrage if you'd rather have corporate actions & special situations and regulatory filings monitoring. And if you only need the basics both share, let price decide.
Can I export data from ChartMill and InsideArbitrage?
ChartMill exports to CSV. InsideArbitrage is stingier about getting data out.
Is ChartMill or InsideArbitrage better for day trading?
ChartMill is the one positioned more for active traders. InsideArbitrage 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: ChartMill or InsideArbitrage?
Both ChartMill and InsideArbitrage include stock screeners, and they differ more in interface than raw power; try both and see which one clicks for you.
Can I track my portfolio with ChartMill or InsideArbitrage?
InsideArbitrage handles portfolio tracking. ChartMill is really a research tool; you'd track your portfolio 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.