★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool comparison edition
Tool Comparison
PortfoliosLab vs Reflexivity
Pick PortfoliosLab if
PortfoliosLab
Free • From $8.33/mo · Web · API
- You'd rather start free and only pay if you outgrow it
- You care about watchlist, correlation, and risk metrics, things Reflexivity doesn't offer
- You're newer to investing and want something approachable
Pick Reflexivity if
Reflexivity
Subscription · Web · API
- Delayed quotes won't cut it; you need real-time data
- You care about scenario & stress tests, alerts, and news, things PortfoliosLab 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
PortfoliosLab and Reflexivity cover a lot of the same ground (8 shared categories, including portfolio, backtesting, and performance attribution), so for the basics you won't go far wrong with either. PortfoliosLab simply does more: 17 categories to Reflexivity's 12, including watchlist, correlation, and risk metrics. Reflexivity counters by keeping things simpler.
What readers say
PortfoliosLab
Vote once to reveal the community verdict.
Reflexivity
Vote once to reveal the community verdict.
Key differences at a glance
- Free plan
- PortfoliosLab
- Broader coverage
- PortfoliosLab17 vs 12 categories
- Real-time data
- Reflexivity
- Beginner friendly
- PortfoliosLab
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 • From $8.33/mo | Subscription |
Free tier | Yes | No |
Free trial | — | — |
Plan limits | 23 limits: Free: watchlists: 1, Free: watchlist symbols: 100 +21 more | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | Yes | Yes |
Broker sync | No | No |
Integrations | MCP, ChatGPT +1 more | — |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Best for | Retail Traders, Pro Retail +6 more | — |
Categories covered | 17 | 12 |
Regions | North America, Europe | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | 3 signals: Latency: End of Day, Granularity: EOD +1 more | Latency: Real-time and End of Day and Granularity: EOD |
Capabilities | 6 signals: Factor exposure, VaR/ES +4 more | 5 signals: Universe builder, Stress tests: Rates, FX, and EquityCrash +3 more |
Security | — | SOC2 |
| Try it | Visit PortfoliosLab | Visit Reflexivity |
Where each one shines
What PortfoliosLab and Reflexivity each do best.ShowHide
Where each one shines
What PortfoliosLab and Reflexivity each do best.What PortfoliosLab does best
- Backtest portfolios and single instruments with configurable rebalancing, benchmark comparisons, and longer historical windows on paid plans.
- Analysis of performance, drawdowns, volatility, VaR, CVaR, Sharpe, Sortino, Omega, Calmar, Martin, Treynor, and related risk-adjusted ratios.
- Comparison tools for stocks, ETFs, mutual funds, funds, crypto, and currency instruments across performance, risk, drawdown, and diversification views.
- Correlation, alpha/beta, factor, diversification, and optimization tools including mean-variance, risk parity, HRP, and HERC models.
- Screening for stocks, ETFs, and mutual funds with daily-recalculated filters, then export results where the selected plan allows it.
What Reflexivity does best
- AI research workflows over institutional datasets from providers such as S&P Global, LSEG Datastream, Nasdaq, Cboe, and other sources included in the platform.
- Tools for running Deep Research workflows that can analyze data, write and execute code, create research reports, and export data or visualizations.
- Search tools across filings, transcripts, presentations, central bank documents, and proprietary uploads through Document Intelligence.
- OCR on charts and tables so documents can become searchable and analyzable research inputs.
- Monitoring portfolios with real-time alerts, risk and exposure analytics, performance attribution, and daily insight generation.
Every detail we compared
Every tracked attribute for PortfoliosLab and Reflexivity, side by side.ShowHide
Every detail we compared
Every tracked attribute for PortfoliosLab and Reflexivity, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | StocksETFsMutual FundsFundsCryptosCurrencies | StocksETFsBondsCommoditiesCurrencies |
Experience | BeginnerIntermediateAdvanced | IntermediateAdvanced |
Target audience | Retail TradersPro RetailInstitutional InvestorsLong-term InvestorsIndex/Passive InvestorsQuants/DevelopersAnalystsFinancial Advisors | Not specified |
Regions | North AmericaEurope | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Countries: US and GBIdentifiers: Ticker | Identifiers: Ticker |
| Data | ||
Data freshness | End of Day | Real-timeEnd of Day |
Data granularity | EOD | EOD |
| Access & integrations | ||
API protocols | REST | Not specified |
API auth & delivery | Auth: NoneDocs | Not specified |
Import methods | ManualCSV | CSVManual |
Integrations | MCPChatGPTClaude | Not specified |
Export formats | Not specified | Excel |
| Plans & trust | ||
Security & compliance | Not specified | SOC2 |
Capability signals | Factor exposureVaR/ESPerformance attributionRebalancingPortfolio factor exposureCorrelation | Universe builderStress tests: Rates, FX, and EquityCrashPortfolio attributionCitation pinningAI summaries: Filings, Transcripts, and News |
Vendor & support | PortfoliosLabSupport: Email | Knabble, Inc. (dba Reflexivity)Country: United StatesSupport: Email |
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 | Freewatchlists: 1 · watchlist symbols: 100 · +4 more | — |
| Entry paid plan | $8.33/mo“Plus”watchlists: 5 · private portfolios: 5 · +3 more | — |
| Tier 2 | $20.83/mo“Pro”watchlists: 10 · private portfolios: Unlimited · +3 more | — |
| Top plan | $75/mo“Max”watchlists: 10 · watchlist symbols: 2,000 · +5 more | — |
Questions we keep getting
What's the difference between PortfoliosLab and Reflexivity?
PortfoliosLab leans toward portfolio, watchlist, and backtesting, 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.
Is PortfoliosLab or Reflexivity free to use?
PortfoliosLab has a free tier, so you can get started without paying anything. Reflexivity is paid-only. If budget matters, start with PortfoliosLab and see how far it takes you before opening your wallet.
Which is better for beginners: PortfoliosLab or Reflexivity?
PortfoliosLab is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.
Do PortfoliosLab 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 PortfoliosLab or Reflexivity?
It depends on what you're after. Pick PortfoliosLab if watchlist and correlation matter to you; go with Reflexivity if you'd rather have scenario & stress tests and alerts. And if you only need the basics both share, let price decide.
What asset classes do PortfoliosLab and Reflexivity cover?
Both cover stocks, ETFs, and currencies. PortfoliosLab also handles mutual funds, funds, and cryptos. Reflexivity adds bonds and commodities on top.
Does PortfoliosLab or Reflexivity have real-time data?
Reflexivity offers real-time data, which matters if you trade actively. PortfoliosLab 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 PortfoliosLab and Reflexivity?
Reflexivity exports to Excel. PortfoliosLab is stingier about getting data out.
Which has a better stock screener: PortfoliosLab or Reflexivity?
Both PortfoliosLab 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 PortfoliosLab or Reflexivity?
Yes, both do portfolio tracking: holdings, performance, and allocation in one place.
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.