BEST INVESTING TOOLS COMPARISON

Checking

Checked September 24, 2026

Tool Comparison

ChartMill vs Portfolio123

Paid from
—
Free plan
Yes
Platforms
Web

Best if

  • You want stock comparison, alerts, and news.
  • You trade often and need tooling built for speed
Paid from
$25/mo
Free plan
Yes
Platforms
Web, API, Desktop

Best if

  • Delayed quotes won't cut it; you need real-time data
  • You want an API so you can script or automate things
  • You want quant, portfolio, and correlation.

Pick ChartMill if

ChartMill logo

ChartMill

chartmill.comTested

Free • Paid plans available · Web

  • You want stock comparison, alerts, and news.
  • You trade often and need tooling built for speed

Pick Portfolio123 if

Portfolio123 logo

Portfolio123

portfolio123.comTested

Free • From $300/yr · Web · API · Desktop

  • Delayed quotes won't cut it; you need real-time data
  • You want an API so you can script or automate things
  • You want quant, portfolio, and correlation.

Skip both if: Neither one clicks with how you research; there are strong third options.

See alternatives

Other tools you might like

Outbound links may include affiliate or sponsor codes.

Not set on either one? See the top 50 tools, ranked by user votes, or the deals page for big discounts on popular tools.

Our take

The bottom line

ChartMill and Portfolio123 cover a lot of the same ground (11 shared categories, including screeners, stock ideas, and data visualizations), so for the basics you won't go far wrong with either. ChartMill simply does more: 24 categories to Portfolio123's 19, including stock comparison, alerts, and news. Portfolio123 counters by keeping things simpler.

What readers say

ChartMill

No votes yet. Cast the first one.

Portfolio123

No votes yet. Cast the first one.

Key differences at a glance

Real-time data
Portfolio123
Broader coverage
ChartMill24 vs 19 categories
Desktop app
Portfolio123
API access
Portfolio123
Asset coverage
Portfolio123Adds closed-end funds
Free plan
Both
See the full side-by-side table
ChartMill logo

What ChartMill does best

  1. Screening for stocks and ETFs with technical, fundamental, dividend, valuation, growth, profitability, health, and custom-expression filters.
  2. Start from Trading Ideas templates for breakouts, pullbacks, CANSLIM, Minervini, GARP, dividends, value, and growth.
  3. ChartMill ratings, technical setup views, analyzer pages, and fundamental reports to compare candidates.
  4. Build watchlists, save screens, export results, and set alerts for prices, setups, earnings, news, insider activity, fundamentals, analyst changes, and screen results.
  5. Multi-chart layouts, saved chart configurations, drawings, indicators, event markers, and watchlist-based charting.
Portfolio123 logo

What Portfolio123 does best

  1. Build multifactor ranking systems, stock screens, ETF screens, and rules-based strategies.
  2. Run simulations with custom universes, buy and sell rules, position sizing, hedging, rebalancing, slippage, and commissions.
  3. Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
  4. Create ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
  5. AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.

Side by side

Pricing & plans
Starting price
Free • Paid plans available
Free • From $300/yr
Free tier
Yes
Yes
Free trial
—
—
Platforms & access
Web app
Yes
Yes
Desktop app
No
Yes
Mobile app
No
No
API access
No
Yes
Broker sync
—
Yes
Integrations
—
Interactive Brokers and Tradier
Coverage & data
Asset types
StocksETFs
StocksETFsClosed-End Funds
Target audience
Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors
Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers
Data freshness
15-min DelayedEnd of Day
Real-timeEnd of Day
Data granularity
EODMinute
EOD
Export formats
CSV
CSVJSON

Pricing comparison

Tier
ChartMillCheaper start
Free plan
Free
Free“Manage (Free)”
Entry paid plan
$34.97/mo“Monthly Subscription”
$300/yr≈ $25/mo“Screener (Annual)”
Tier 2
$299.97/yr“Annual Subscription + Free Course”
$35/mo“Screener (Monthly)”
Tier 3
—
$1000/yr≈ $83.33/mo“Backtest (Annual)”
Tier 4
—
$116/mo“Backtest (Monthly)”
Tier 5
—
$1500/yr≈ $125/mo“Portfolio (Annual)”
Tier 6
—
$174/mo“Portfolio (Monthly)”
Tier 7
—
$2400/yr≈ $200/mo“Ultimate (Annual)”
Top plan
—
$278/mo“Ultimate (Monthly)”
Custom / enterprise
—
Contact sales“Professional / API & Data Licenses”

See for yourself

Side by side

Price, platforms, data, and market coverage.
Show
Side-by-side comparison of ChartMill and Portfolio123
Attribute
ChartMill logo
ChartMill
Portfolio123 logo
Portfolio123
Pricing & plans
Starting price
Free • Paid plans availableFree • From $300/yr
Free tier
YesYes
Free trial
——
Plan limits
Free: financials history: 4 years/quarters (free users, example pages).25 limits: Free Screener & Backtesting Access: duration days: 30, Screener (Annual): backtest history years: 5 +23 more
Platforms & access
Web app
YesYes
Desktop app
NoYes
Mobile app
NoNo
API access
NoYes
Broker sync
—Yes
Integrations
—Interactive Brokers and Tradier
Audience & fit
Experience level
Beginner, Intermediate, AdvancedBeginner, Intermediate, Advanced
Best for
Retail Traders, Pro Retail +6 moreRetail Traders, Pro Retail +5 more
Categories covered
2419
Regions
North America, EuropeNorth America, Europe
Data & capabilities
Data quality
3 signals: Latency: 15-min Delayed and End of Day, Granularity: EOD and Minute +1 more5 signals: Latency: Real-time and End of Day, Granularity: EOD +3 more
Data partners
—4 partners: FactSet, S&P Global Market Intelligence +2 more
Capabilities
Custom formulas and Universe builder6 signals: Custom formulas, Ranking backtests +4 more
Try itVisit ChartMillVisit Portfolio123

Standout features

The best features of ChartMill and Portfolio123.
Show
ChartMill logo

What ChartMill does best

  1. Screening for stocks and ETFs with technical, fundamental, dividend, valuation, growth, profitability, health, and custom-expression filters.
  2. Start from Trading Ideas templates for breakouts, pullbacks, CANSLIM, Minervini, GARP, dividends, value, and growth.
  3. ChartMill ratings, technical setup views, analyzer pages, and fundamental reports to compare candidates.
  4. Build watchlists, save screens, export results, and set alerts for prices, setups, earnings, news, insider activity, fundamentals, analyst changes, and screen results.
  5. Multi-chart layouts, saved chart configurations, drawings, indicators, event markers, and watchlist-based charting.
Portfolio123 logo

What Portfolio123 does best

  1. Build multifactor ranking systems, stock screens, ETF screens, and rules-based strategies.
  2. Run simulations with custom universes, buy and sell rules, position sizing, hedging, rebalancing, slippage, and commissions.
  3. Point-in-time data designed to avoid survivorship and look-ahead bias, with fundamentals, estimates, corporate actions, sector and industry classifications, and historical issues.
  4. Create ranking systems from fundamental, technical, sentiment, and macro factors, including public factor documentation and FRED-linked economic series.
  5. AI Factor to train machine-learning predictors for expected returns and feed those predictions into rankings, simulations, and asset-level analysis.

All details

Every attribute we track for ChartMill and Portfolio123.
Show
Attribute
ChartMill logo
ChartMill
Portfolio123 logo
Portfolio123
Coverage & fit
Asset types
StocksETFs
StocksETFsClosed-End Funds
Experience
BeginnerIntermediateAdvanced
BeginnerIntermediateAdvanced
Target audience
Retail TradersPro RetailDay TradersSwing TradersLong-term InvestorsGrowth InvestorsValue InvestorsDividend Investors
Retail TradersPro RetailInstitutional InvestorsAnalystsQuants/DevelopersFinancial AdvisorsStudents/Researchers
Regions
North AmericaEurope
North AmericaEurope
Coverage details
17 countries9 exchangesIdentifiers: Ticker and ISIN
Countries: US and CAIdentifiers: Ticker
Data
Data freshness
15-min DelayedEnd of Day
Real-timeEnd of Day
Data granularity
EODMinute
EOD
Data partners
Not specified
FactSetS&P Global Market IntelligenceICE Data ServicesFRED
Access & integrations
API protocols
Not specified
REST
API auth & delivery
Not specified
Auth: APIKeyDocs
Import methods
Not specified
BrokerOAuthCSV
Integrations
Not specified
Interactive BrokersTradier
Export formats
CSV
CSVJSON
Plans & trust
Capability signals
Custom formulasUniverse builder
Custom formulasRanking backtestsUniverse builderBroker syncRebalancingCorrelation
Vendor & support
ChartMill
Portfolio123Support: Forum

Green tags are exclusive to that tool in this comparison.

Pricing

Plans, billing, free trials, and monthly prices.
Show
Plan-by-plan pricing comparison of ChartMill and Portfolio123
Tier
ChartMill logo
ChartMillCheaper start
Portfolio123 logo
Portfolio123
Free plan
Freefinancials history: 4 years/quarters (free users, example pages).
Free“Manage (Free)”
Entry paid plan
$34.97/mo“Monthly Subscription”
$300/yr≈ $25/mo“Screener (Annual)”backtest history years: 5 · resource units: 400 · +1 more
Tier 2
$299.97/yr“Annual Subscription + Free Course”
$35/mo“Screener (Monthly)”backtest history years: 5 · resource units: 400 · +1 more
Tier 3—
$1000/yr≈ $83.33/mo“Backtest (Annual)”backtest history years: 10 · resource units: 1,000 · +1 more
Tier 4—
$116/mo“Backtest (Monthly)”backtest history years: 10 · resource units: 1,000 · +1 more
Tier 5—
$1500/yr≈ $125/mo“Portfolio (Annual)”backtest history years: 15 · resource units: 5,000 · +1 more
Tier 6—
$174/mo“Portfolio (Monthly)”backtest history years: 15 · resource units: 5,000 · +1 more
Tier 7—
$2400/yr≈ $200/mo“Ultimate (Annual)”backtest history years: 20 · resource units: 10,000 · +1 more
Top plan—
$278/mo“Ultimate (Monthly)”backtest history years: 20 · resource units: 10,000 · +1 more
Custom / enterprise—
Contact sales“Professional / API & Data Licenses”

Questions we keep getting

What's the difference between ChartMill and Portfolio123?

ChartMill leans toward screeners, stock ideas, and stock comparison, while Portfolio123 puts more weight on screeners, data visualizations, and quant. They overlap in 11 categories, so for most people it comes down to workflow preference and price.

How much do ChartMill and Portfolio123 cost?

Good news: both ChartMill and Portfolio123 have free plans, so you can run them side by side and only pay if you hit a wall.

Does ChartMill or Portfolio123 have an API?

Portfolio123 has an API for programmatic access and custom integrations. ChartMill doesn't, so you're working through its interface.

Should I choose ChartMill or Portfolio123?

It depends on what you're after. Pick ChartMill if stock comparison and alerts matter to you; go with Portfolio123 if you'd rather have quant and portfolio. And if you only need the basics both share, let price decide.

What asset classes do ChartMill and Portfolio123 cover?

Both cover stocks and ETFs. Portfolio123 adds closed-end funds on top.

Does ChartMill or Portfolio123 have real-time data?

Portfolio123 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.

Can I export data from ChartMill and Portfolio123?

Yes, both export to spreadsheets (CSV), which is handy if you like running your own numbers.

Is ChartMill or Portfolio123 better for day trading?

ChartMill is the one positioned more for active traders. Portfolio123 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 Portfolio123?

Both ChartMill and Portfolio123 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 Portfolio123?

Portfolio123 handles portfolio tracking. ChartMill is really a research tool; you'd track your portfolio elsewhere.

Feedback

Spot stale pricing, missing features, or a comparison that feels off? Send feedback on the verdict, table, alternatives, or recommendation.

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.