VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Tuesday, October 28, 2025

Tool Comparison

Investment Masters Class (MastersInvest.com) vs r/SecurityAnalysis — Letters Wiki comparison

Compare pricing, supported platforms, categories, and standout capabilities to decide which tool fits your workflow.

Quick takeaways

Investment Masters Class (MastersInvest.com) adds Blogs coverage that r/SecurityAnalysis — Letters Wiki skips.

r/SecurityAnalysis — Letters Wiki includes Forums categories that Investment Masters Class (MastersInvest.com) omits.

In depth comparison

Investment Masters Class (MastersInvest.com) logo

Investment Masters Class (MastersInvest.com)

mastersinvest.com

A free educational resource offering tutorials, curated reading, and essays on timeless lessons from great investors. Includes a blog and newsletter sign-up. All content is informational and intended to inspire better investing habits — not financial advice.

Platforms

Web

Pricing

Free

Quick highlights

  • A library of 100 structured tutorials covering core concepts such as compounding, moats, margin of safety, position sizing, and investment checklists.
  • Regularly updated blog essays distilling insights from legendary investors, CEOs, and business leaders.
  • The “Masters Bookshelf,” a curated reading list spanning investing, history, psychology, and business classics.
  • Investor Letters hub linking directly to primary sources like Buffett, Li Lu, and Lindsell Train.
  • Profiles of notable investors, summarizing their philosophies, strategies, and biggest lessons.

Community votes (overall)

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r/SecurityAnalysis — Letters Wiki logo

r/SecurityAnalysis — Letters Wiki

reddit.com

Community‑maintained directory of investor/fund letters and reports, organized by year/quarter. Publicly viewable; edits limited to approved contributors. Links out to original PDFs/posts on managers’ sites. No data feeds, APIs, or exports—pure research reading list.

Platforms

Web

Pricing

Free

Quick highlights

  • Chronological index of letters grouped by year and quarter (2016→present in the wiki).
  • Publicly readable wiki page with edit permissions restricted to approved users/moderators.
  • ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch).
  • Direct outbound links to the letters on manager sites; useful for primary-source research.

Community votes (overall)

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Where they differ

Investment Masters Class (MastersInvest.com)

Distinct strengths include:

  • A library of 100 structured tutorials covering core concepts such as compounding, moats, margin of safety, position sizing, and investment checklists.
  • Regularly updated blog essays distilling insights from legendary investors, CEOs, and business leaders.
  • The “Masters Bookshelf,” a curated reading list spanning investing, history, psychology, and business classics.
  • Investor Letters hub linking directly to primary sources like Buffett, Li Lu, and Lindsell Train.

r/SecurityAnalysis — Letters Wiki

Distinct strengths include:

  • Chronological index of letters grouped by year and quarter (2016→present in the wiki).
  • Publicly readable wiki page with edit permissions restricted to approved users/moderators.
  • ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch).
  • Direct outbound links to the letters on manager sites; useful for primary-source research.

Feature-by-feature breakdown

AttributeInvestment Masters Class (MastersInvest.com)r/SecurityAnalysis — Letters Wiki
Categories

Which research workflows each platform targets

Shared: Education, Newsletters, Playbooks & Case Studies

Unique: Blogs

Shared: Education, Newsletters, Playbooks & Case Studies

Unique: Forums

Asset types

Supported asset classes and universes

Other

Other

Experience levels

Who each product is built for

Beginner, Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web

Web

Pricing

High-level pricing models

Free

Free

Key features

Core capabilities called out by each vendor

Unique

  • A library of 100 structured tutorials covering core concepts such as compounding, moats, margin of safety, position sizing, and investment checklists.
  • Regularly updated blog essays distilling insights from legendary investors, CEOs, and business leaders.
  • The “Masters Bookshelf,” a curated reading list spanning investing, history, psychology, and business classics.
  • Investor Letters hub linking directly to primary sources like Buffett, Li Lu, and Lindsell Train.
  • Profiles of notable investors, summarizing their philosophies, strategies, and biggest lessons.
  • Free email subscription (“ENROL”) to receive blog posts, book reviews, and thematic insights.

Unique

  • Chronological index of letters grouped by year and quarter (2016→present in the wiki).
  • Publicly readable wiki page with edit permissions restricted to approved users/moderators.
  • ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch).
  • Direct outbound links to the letters on manager sites; useful for primary-source research.
Tested

Verified by hands-on testing inside Find My Moat

Not yet

Not yet

Editor pick

Featured inside curated shortlists

Standard listing

Standard listing

Frequently Asked Questions

Which workflows do Investment Masters Class (MastersInvest.com) and r/SecurityAnalysis — Letters Wiki both support?

Both platforms cover Education, Newsletters, and Playbooks & Case Studies workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Investment Masters Class (MastersInvest.com) and r/SecurityAnalysis — Letters Wiki require subscriptions?

Both Investment Masters Class (MastersInvest.com) and r/SecurityAnalysis — Letters Wiki keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Investment Masters Class (MastersInvest.com) and r/SecurityAnalysis — Letters Wiki?

Both Investment Masters Class (MastersInvest.com) and r/SecurityAnalysis — Letters Wiki prioritize web or desktop access. Investors wanting a mobile-first workflow may need to rely on responsive web views.

What unique strengths set the two platforms apart?

Investment Masters Class (MastersInvest.com) differentiates itself with A library of 100 structured tutorials covering core concepts such as compounding, moats, margin of safety, position sizing, and investment checklists., Regularly updated blog essays distilling insights from legendary investors, CEOs, and business leaders., and The “Masters Bookshelf,” a curated reading list spanning investing, history, psychology, and business classics., whereas r/SecurityAnalysis — Letters Wiki stands out for Chronological index of letters grouped by year and quarter (2016→present in the wiki)., Publicly readable wiki page with edit permissions restricted to approved users/moderators., and ‘Others’ section pointing to classic collections (e.g., Austin Value, Nomad Partnership, Peter Lynch)..

Keep exploring

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.