★ BEST INVESTING TOOLS COMPARISON ★
VOL. XCIV, NO. 247
Tool details checked August 23, 2026
Tool Comparison
Berkshire Hathaway Archive (Memorex) vs Reflexivity
Pick Berkshire Hathaway Archive (Memorex) instead if
Berkshire Hathaway Archive (Memorex)
Free · Web
- You care about education, something Reflexivity doesn't offer
- You're newer to investing and want something approachable
Start here
Reflexivity
Free • From $99.99/mo · Web · API
- Delayed quotes won't cut it; you need real-time data
- You want an API so you can script or automate things
- You care about screeners, quant, and performance attribution, things Berkshire Hathaway Archive (Memorex) 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
Berkshire Hathaway Archive (Memorex) and Reflexivity cover a lot of the same ground (2 shared categories, transcripts and AI research), so for the basics you won't go far wrong with either. Reflexivity simply does more: 13 categories to Berkshire Hathaway Archive (Memorex)'s 3, including screeners, quant, and performance attribution. Berkshire Hathaway Archive (Memorex) counters by being completely free.
What readers say
Berkshire Hathaway Archive (Memorex)
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Reflexivity
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Key differences at a glance
- Real-time data
- Reflexivity
- Broader coverage
- Reflexivity13 vs 3 categories
- API access
- Reflexivity
- Asset coverage
- ReflexivityAdds ETFs and bonds
- Beginner friendly
- Berkshire Hathaway Archive (Memorex)
- 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 | Free • From $99.99/mo |
Free tier | Yes | Yes |
Free trial | — | — |
| Platforms & access | ||
Web app | Yes | Yes |
Mobile app | No | No |
API access | No | Yes |
Broker sync | No | No |
| Audience & fit | ||
Experience level | Beginner, Intermediate, Advanced | Intermediate, Advanced |
Best for | — | — |
Categories covered | 3 | 13 |
Regions | — | North America, Europe, APAC, LatAm, Middle East, Africa |
| Data & capabilities | ||
Data quality | — | Latency: Real-time and End of Day and Granularity: EOD |
Capabilities | — | 5 signals: Universe builder, Stress tests: Rates, FX, and EquityCrash +3 more |
Security | — | SOC2 |
| Try it | Visit Berkshire Hathaway Archive (Memorex) | Visit Reflexivity |
Where each one shines
What Berkshire Hathaway Archive (Memorex) and Reflexivity each do best.ShowHide
Where each one shines
What Berkshire Hathaway Archive (Memorex) and Reflexivity each do best.What Berkshire Hathaway Archive (Memorex) does best
- Search tools for Berkshire Hathaway shareholder letters and annual meeting transcripts from one focused web archive.
- Topic, subject, question, and similarity-style search modes to find passages by meaning rather than exact keywords only.
- Research coverage for Buffett and Berkshire language around capital allocation, business quality, incentives, insurance, valuation, and long-term investing.
- Use the archive for education, source retrieval, quote discovery, and investment-process research.
- Review the update history to see when newer letters and annual meeting content were added.
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 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.
- Monitor portfolios with real-time alerts, risk and exposure analytics, performance attribution, and daily insight generation.
Every detail we compared
Every tracked attribute for Berkshire Hathaway Archive (Memorex) and Reflexivity, side by side.ShowHide
Every detail we compared
Every tracked attribute for Berkshire Hathaway Archive (Memorex) and Reflexivity, side by side.| Attribute | ||
|---|---|---|
| Coverage & fit | ||
Asset types | Stocks | StocksETFsBondsCommoditiesCurrencies |
Experience | BeginnerIntermediateAdvanced | IntermediateAdvanced |
Regions | Not specified | North AmericaEuropeAPACLatAmMiddle EastAfrica |
Coverage details | Not specified | Identifiers: Ticker |
| Data | ||
Data freshness | Not specified | Real-timeEnd of Day |
Data granularity | Not specified | EOD |
| Access & integrations | ||
Import methods | Not specified | CSVManual |
Export formats | Not specified | Excel |
| Plans & trust | ||
Security & compliance | Not specified | SOC2 |
Capability signals | Not specified | Universe builderStress tests: Rates, FX, and EquityCrashPortfolio attributionCitation pinningAI summaries: Filings, Transcripts, and News |
Vendor & support | Max Olson | 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 | Free | Free“Basic via IBKR” |
| Entry paid plan | — | $99.99/mo“Plus via IBKR” |
| Custom / enterprise | — | Contact sales“Institutional” |
Questions we keep getting
What's the difference between Berkshire Hathaway Archive (Memorex) and Reflexivity?
Berkshire Hathaway Archive (Memorex) leans toward transcripts, AI research, and education, while Reflexivity puts more weight on screeners, quant, and performance attribution. They overlap in 2 categories, so for most people it comes down to workflow preference and price.
How much do Berkshire Hathaway Archive (Memorex) and Reflexivity cost?
Good news: both Berkshire Hathaway Archive (Memorex) and Reflexivity have free plans, so you can run them side by side and only pay if you hit a wall.
Which is better for beginners: Berkshire Hathaway Archive (Memorex) or Reflexivity?
Berkshire Hathaway Archive (Memorex) is the friendlier place to start; its interface takes less getting used to. Both work fine once you're past the basics.
Does Berkshire Hathaway Archive (Memorex) or Reflexivity have an API?
Reflexivity has an API for programmatic access and custom integrations. Berkshire Hathaway Archive (Memorex) doesn't, so you're working through its interface.
Should I choose Berkshire Hathaway Archive (Memorex) or Reflexivity?
It depends on what you're after. Pick Berkshire Hathaway Archive (Memorex) if education matter to you; go with Reflexivity if you'd rather have screeners and quant. And if you only need the basics both share, let price decide.
What asset classes do Berkshire Hathaway Archive (Memorex) and Reflexivity cover?
Both cover stocks. Reflexivity adds ETFs, bonds, and commodities on top.
Does Berkshire Hathaway Archive (Memorex) or Reflexivity have real-time data?
Reflexivity offers real-time data, which matters if you trade actively. Berkshire Hathaway Archive (Memorex) 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 Berkshire Hathaway Archive (Memorex) and Reflexivity?
Reflexivity exports to Excel. Berkshire Hathaway Archive (Memorex) is stingier about getting data out.
Which has a better stock screener: Berkshire Hathaway Archive (Memorex) or Reflexivity?
Reflexivity has a stock screener for surfacing ideas; Berkshire Hathaway Archive (Memorex) doesn't, and focuses its energy elsewhere.
Can I track my portfolio with Berkshire Hathaway Archive (Memorex) or Reflexivity?
Reflexivity handles portfolio tracking. Berkshire Hathaway Archive (Memorex) is really a research tool; you'd track your portfolio elsewhere.
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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.