★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
ChartMill vs InsideArbitrage
Pick ChartMill if
ChartMill
Free • Paid plans available · Web
- You'd rather start free and only pay if you outgrow it
- You care about stock ideas, stock comparison, and scores, things InsideArbitrage doesn't offer
- You trade often and need tooling built for speed
Pick InsideArbitrage if
InsideArbitrage
From $100/mo · Web
- Delayed quotes won't cut it; you need real-time data
- You care about corporate actions & special situations, regulatory filings monitoring, and portfolio, things ChartMill doesn't offer
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 18, including stock ideas, stock comparison, and scores. InsideArbitrage counters by keeping things simpler.
What readers say
ChartMill
Vote once to reveal the community verdict.
InsideArbitrage
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- ChartMill
- Broader coverage
- ChartMill24 vs 18 categories
- Real-time data
- InsideArbitrage
- Global coverage
- ChartMill
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 | From $100/mo |
Free tier | Yes | No |
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 | 18 |
Regions | North America, Europe | North America |
| Data & capabilities | ||
Data quality | 3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more | 4 signals: Latency: Real-time and End of Day, Granularity: EOD +2 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.
- 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.
What InsideArbitrage does best
- Tracking announced merger-arbitrage deals with spread context, calendars, deal updates, Deals in the Works, and post-mortem research.
- Tracked-deal workflows to filter relevant news, SEC filings, and tweets around the active-deal symbols a premium user follows.
- Research coverage for insider activity with Insider Weekends, cluster buys, buys near highs, flip-floppers, top-performing insiders, sector heat maps, and premium insider screens.
- Monitoring buyback situations through daily buyback announcements, searchable buyback history, Buyback Wednesdays, and Double Dipper screens that combine insider buying with repurchases.
- Monitoring spinoffs, completed spinoffs, Spinsider ideas, CVR deals, CVR outcomes, tender offers, reverse splits, activist campaigns, C-suite transitions, and M&A news feeds.
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 | North America |
Coverage details | 17 countries9 exchangesIdentifiers: Ticker and ISIN | Countries: USExchanges: XNYS, XNAS, and ARCXIdentifiers: Ticker and CIK |
| Data | ||
Data freshness | 15-min DelayedEnd of Day | Real-timeEnd of Day |
Data granularity | EODMinute | EOD |
| Access & integrations | ||
Import methods | Not specified | Manual |
Export formats | CSV | Not specified |
| Plans & trust | ||
Capability signals | Custom formulasUniverse builder | Universe builder |
Vendor & support | ChartMill | InsideArbitrageCountry: USSupport: 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). | — |
| Entry paid plan | $34.97/mo“Monthly Subscription” | $100/mo“Premium – Annual” |
| Tier 2 | $299.97/yr“Annual Subscription + Free Course” | $150/mo“Premium – Monthly” |
| Tier 3 | — | $300/mo“IA Professional – Annual” |
| Top plan | — | $400/mo“IA Professional (4 seats)” |
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.
Is ChartMill or InsideArbitrage free to use?
ChartMill has a free tier, so you can get started without paying anything. InsideArbitrage is paid-only. If budget matters, start with ChartMill and see how far it takes you before opening your wallet.
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.
Does ChartMill or InsideArbitrage have real-time data?
InsideArbitrage offers real-time data, which matters if you trade actively. ChartMill runs on delayed or end-of-day data, which is perfectly fine for longer-term investors who don't live and die by the tick.
Which covers international markets: ChartMill or InsideArbitrage?
ChartMill has documented international coverage (North America and Europe), so it's the safer bet if you hold non-US stocks. InsideArbitrage is more region-specific, mainly North America.
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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Feedback
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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.