BEST INVESTING TOOLS COMPARISON

Checking

Checked September 24, 2026

Tool Comparison

FactorsToday vs Reflexivity

Paid from
—
Free plan
Yes
Platforms
Web, API

Best if

  • You want data visualizations, stock comparison, and factor exposure.
Paid from
$99.99/mo
Free plan
Yes
Platforms
Web, API

Best if

  • You want alerts, news, and calendar.

Pick FactorsToday if

FactorsToday logo

FactorsToday

factorstoday.com

Free · Web · API

  • You want data visualizations, stock comparison, and factor exposure.

Pick Reflexivity if

Reflexivity logo

Reflexivity

reflexivity.com

Free • From $99.99/mo · Web · API

  • You want alerts, news, and calendar.

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

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Our take

The bottom line

FactorsToday and Reflexivity cover a lot of the same ground (8 shared categories, including screeners, quant, and performance attribution), so for the basics you won't go far wrong with either. FactorsToday includes data visualizations and stock comparison, and Reflexivity includes alerts and news.

What readers say

FactorsToday

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Reflexivity

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Key differences at a glance

Free plan
Both
See the full side-by-side table
FactorsToday logo

What FactorsToday does best

  1. Factor dashboards report intraday and multi-period returns, z-scores, pair relationships, correlations, seasonality, and valuations.
  2. Stock pages use ElasticNet regression with cross-validation to estimate exposures across four nested models.
  3. Portfolio analysis accepts holdings, compares exposures with a benchmark, and applies user-defined factor-return scenarios.
  4. Performance attribution applies rolling ordinary-least-squares regressions to uploaded or pasted returns and exports results to Excel.
  5. The factor builder searches for stocks matching target exposures and displays simulated historical results.
Reflexivity logo

What Reflexivity does best

  1. AI research workflows over institutional datasets from providers such as S&P Global, LSEG Datastream, Nasdaq, Cboe, and other sources included in the platform.
  2. Tools for running Deep Research workflows that can analyze data, write and execute code, create research reports, and export data or visualizations.
  3. Search across filings, transcripts, presentations, central bank documents, and proprietary uploads through Document Intelligence.
  4. OCR on charts and tables so documents can become searchable and analyzable research inputs.
  5. Monitor portfolios with real-time alerts, risk and exposure analytics, performance attribution, and daily insight generation.

Side by side

Pricing & plans
Starting price
Free
Free • From $99.99/mo
Free tier
Yes
Yes
Free trial
—
—
Platforms & access
Web app
Yes
Yes
Mobile app
No
No
API access
Yes
Yes
Broker sync
No
No
Coverage & data
Asset types
StocksETFsMutual FundsClosed-End Funds
StocksETFsBondsCommoditiesCurrencies
Target audience
AnalystsQuants/Developers
Not specified
Data freshness
Real-timeEnd of Day
Real-timeEnd of Day
Data granularity
EODMinute
EOD
Export formats
CSVExcelJSON
Excel

Pricing comparison

Tier
FactorsTodayCheaper start
Free plan
Free“Current public access”
Free“Basic via IBKR”
Entry paid plan
—
$99.99/mo“Plus via IBKR”
Custom / enterprise
—
Contact sales“Institutional”

See for yourself

Side by side

Price, platforms, data, and market coverage.
Show
Side-by-side comparison of FactorsToday and Reflexivity
Attribute
FactorsToday logo
FactorsToday
Reflexivity logo
Reflexivity
Pricing & plans
Starting price
FreeFree • From $99.99/mo
Free tier
YesYes
Free trial
——
Plan limits
Current public access: api: 10 requests/second/IP and Current public access: access policy: No long-term free-access commitment published7 limits: Basic via IBKR: market coverage: US equities, Basic via IBKR: news sources: Benzinga only +5 more
Platforms & access
Web app
YesYes
Mobile app
NoNo
API access
YesYes
Broker sync
NoNo
Audience & fit
Experience level
Intermediate, AdvancedIntermediate, Advanced
Best for
Analysts and Quants/Developers—
Categories covered
1313
Regions
—North America, Europe, APAC, LatAm, Middle East, Africa
Data & capabilities
Data quality
3 signals: Latency: Real-time and End of Day, Granularity: EOD and Minute +1 moreLatency: Real-time and End of Day and Granularity: EOD
Capabilities
7 signals: Universe builder, Factors: Value, Quality, Momentum, Growth, LowVol, and Size +5 more5 signals: Universe builder, Stress tests: Rates, FX, and EquityCrash +3 more
Security
—SOC2
Try itVisit FactorsTodayVisit Reflexivity

Standout features

The best features of FactorsToday and Reflexivity.
Show
FactorsToday logo

What FactorsToday does best

  1. Factor dashboards report intraday and multi-period returns, z-scores, pair relationships, correlations, seasonality, and valuations.
  2. Stock pages use ElasticNet regression with cross-validation to estimate exposures across four nested models.
  3. Portfolio analysis accepts holdings, compares exposures with a benchmark, and applies user-defined factor-return scenarios.
  4. Performance attribution applies rolling ordinary-least-squares regressions to uploaded or pasted returns and exports results to Excel.
  5. The factor builder searches for stocks matching target exposures and displays simulated historical results.
Reflexivity logo

What Reflexivity does best

  1. AI research workflows over institutional datasets from providers such as S&P Global, LSEG Datastream, Nasdaq, Cboe, and other sources included in the platform.
  2. Tools for running Deep Research workflows that can analyze data, write and execute code, create research reports, and export data or visualizations.
  3. Search across filings, transcripts, presentations, central bank documents, and proprietary uploads through Document Intelligence.
  4. OCR on charts and tables so documents can become searchable and analyzable research inputs.
  5. Monitor portfolios with real-time alerts, risk and exposure analytics, performance attribution, and daily insight generation.

All details

Every attribute we track for FactorsToday and Reflexivity.
Show
Attribute
FactorsToday logo
FactorsToday
Reflexivity logo
Reflexivity
Coverage & fit
Asset types
StocksETFsMutual FundsClosed-End Funds
StocksETFsBondsCommoditiesCurrencies
Experience
IntermediateAdvanced
IntermediateAdvanced
Target audience
AnalystsQuants/Developers
Not specified
Regions
Not specified
North AmericaEuropeAPACLatAmMiddle EastAfrica
Coverage details
Identifiers: Ticker
Identifiers: Ticker
Data
Data freshness
Real-timeEnd of Day
Real-timeEnd of Day
Data granularity
EODMinute
EOD
Access & integrations
API protocols
REST
Not specified
API auth & delivery
Auth: None600 req/minDocs
Not specified
Import methods
CSVManual
CSVManual
Export formats
CSVExcelJSON
Excel
Plans & trust
Security & compliance
Not specified
SOC2
Capability signals
Universe builderFactors: Value, Quality, Momentum, Growth, LowVol, and SizeFactor exposurePerformance attributionPortfolio attributionPortfolio factor exposureCorrelation
Universe builderStress tests: Rates, FX, and EquityCrashPortfolio attributionCitation pinningAI summaries: Filings, Transcripts, and News
Vendor & support
FactorsToday (operated by Lukasz R. Tomicki)Country: USSupport: Email
Knabble, Inc. (dba Reflexivity)Country: United StatesSupport: Email

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 FactorsToday and Reflexivity
Tier
FactorsToday logo
FactorsTodayCheaper start
Reflexivity logo
Reflexivity
Free plan
Free“Current public access”api: 10 requests/second/IP · access policy: No long-term free-access commitment published
Free“Basic via IBKR”market coverage: US equities · news sources: Benzinga only · +2 more
Entry paid plan—
$99.99/mo“Plus via IBKR”market coverage: Global · alfred queries: Unlimited · +1 more
Custom / enterprise—
Contact sales“Institutional”

Questions we keep getting

What's the difference between FactorsToday and Reflexivity?

FactorsToday leans toward screeners, quant, and data visualizations, while Reflexivity puts more weight on screeners, quant, and performance attribution. They overlap in 8 categories, so for most people it comes down to workflow preference and price.

How much do FactorsToday and Reflexivity cost?

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

Do FactorsToday and Reflexivity have APIs?

Yes, both offer API access, so developers and quants can pull data programmatically or wire up their own integrations.

Should I choose FactorsToday or Reflexivity?

It depends on what you're after. Pick FactorsToday if data visualizations and stock comparison matter to you; go with Reflexivity if you'd rather have alerts and news. And if you only need the basics both share, let price decide.

What asset classes do FactorsToday and Reflexivity cover?

Both cover stocks and ETFs. FactorsToday also handles mutual funds and closed-end funds. Reflexivity adds bonds, commodities, and currencies on top.

Do FactorsToday and Reflexivity offer real-time data?

Yes, both serve real-time market data, so either works when timing matters.

Can I export data from FactorsToday and Reflexivity?

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

Which has a better stock screener: FactorsToday or Reflexivity?

Both FactorsToday and Reflexivity 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 FactorsToday or Reflexivity?

Yes, both do portfolio tracking: holdings, performance, and allocation in one place.

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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.