VOL. XCIV, NO. 247

★ FINANCIAL TOOLS & SERVICES DIRECTORY ★

PRICE: 5 CENTS

Sunday, October 5, 2025

View Corner of Berkshire & Fairfax (COBF)View OptionChartsBack to Home

Head-to-head

Corner of Berkshire & Fairfax (COBF) vs OptionCharts comparison

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

Quick takeaways

Corner of Berkshire & Fairfax (COBF) adds Forums coverage that OptionCharts skips.

OptionCharts includes Data Visualizations, Options & Derivatives, Watchlist, Options, Screeners, and Options P&L categories that Corner of Berkshire & Fairfax (COBF) omits.

Corner of Berkshire & Fairfax (COBF) highlights: Public discussion boards focused on Berkshire Hathaway, Fairfax Financial, general investing, books, and broader market conversations., Members-only sections covering investment ideas, personal finance, strategies, real estate, wealth management, events, and more., and One-time lifetime membership fee of $49.99 USD, available through the site’s shop..

OptionCharts is known for: Interactive Option Strategy Profit & Loss chart with multi‑leg templates (e.g., covered call, verticals, iron condor, calendar)., Per‑ticker chart library: volume, open interest, greeks (Δ, Γ, Θ, ν), implied vol skew, max pain, expected move, probability distribution., and Gamma Exposure (GEX) and Delta Exposure (DEX) visualizations..

Corner of Berkshire & Fairfax (COBF) logo

Corner of Berkshire & Fairfax (COBF)

thecobf.com

A long-standing value-investing forum founded in 2009, with public boards and members-only sections. Membership is a one-time lifetime fee of $49.99, purchased through the site’s shop. The community hosts thousands of investors, with active discussions, member-submitted articles, and dedicated rooms for deeper collaboration.

Categories

Forums
Blogs

Platforms

Web

Pricing

Free
One-time

Quick highlights

  • Public discussion boards focused on Berkshire Hathaway, Fairfax Financial, general investing, books, and broader market conversations.
  • Members-only sections covering investment ideas, personal finance, strategies, real estate, wealth management, events, and more.
  • One-time lifetime membership fee of $49.99 USD, available through the site’s shop.
  • Private Members Room (also known as the COBF Zoom Room) reserved for paid members.
  • Podium section for blog-style, user-submitted articles, accessible via forum login.

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OptionCharts logo

OptionCharts

optioncharts.io

Web app for options analytics and visualizations (P&L, greeks, IV skew, expected move, GEX/DEX, option history) with market‑wide trend screens. Free tier uses 15‑minute delayed OPRA; real‑time options available on Ultimate plan after exchange agreements. Not a broker; no trading execution.

Platforms

Web

Pricing

Free
Subscription

Quick highlights

  • Interactive Option Strategy Profit & Loss chart with multi‑leg templates (e.g., covered call, verticals, iron condor, calendar).
  • Per‑ticker chart library: volume, open interest, greeks (Δ, Γ, Θ, ν), implied vol skew, max pain, expected move, probability distribution.
  • Gamma Exposure (GEX) and Delta Exposure (DEX) visualizations.
  • Option Contract History (price, volume, OI, greeks) with intraday history (up to ~1‑minute intervals) and extended history.
  • Market Trends screens: most active by ticker/contract, highest OI, IV/IV rank, unusual activity, options flow (aggregates update ≈10 min).

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Overlap

Shared focus areas

1 overlap

Both tools cover this research theme.

Where they differ

Corner of Berkshire & Fairfax (COBF)

Distinct strengths include:

Forums
  • Public discussion boards focused on Berkshire Hathaway, Fairfax Financial, general investing, books, and broader market conversations.
  • Members-only sections covering investment ideas, personal finance, strategies, real estate, wealth management, events, and more.
  • One-time lifetime membership fee of $49.99 USD, available through the site’s shop.
  • Private Members Room (also known as the COBF Zoom Room) reserved for paid members.

OptionCharts

Distinct strengths include:

Data Visualizations
Options & Derivatives
Watchlist
Options
Screeners
Options P&L
  • Interactive Option Strategy Profit & Loss chart with multi‑leg templates (e.g., covered call, verticals, iron condor, calendar).
  • Per‑ticker chart library: volume, open interest, greeks (Δ, Γ, Θ, ν), implied vol skew, max pain, expected move, probability distribution.
  • Gamma Exposure (GEX) and Delta Exposure (DEX) visualizations.
  • Option Contract History (price, volume, OI, greeks) with intraday history (up to ~1‑minute intervals) and extended history.

Feature-by-feature breakdown

AttributeCorner of Berkshire & Fairfax (COBF)OptionCharts
Categories

Which research workflows each platform targets

Shared: Blogs

Unique: Forums

Shared: Blogs

Unique: Data Visualizations, Options & Derivatives, Watchlist, Options, Screeners, Options P&L

Asset types

Supported asset classes and universes

Stocks

Options, Stocks, ETFs

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, One-time

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Public discussion boards focused on Berkshire Hathaway, Fairfax Financial, general investing, books, and broader market conversations.
  • Members-only sections covering investment ideas, personal finance, strategies, real estate, wealth management, events, and more.
  • One-time lifetime membership fee of $49.99 USD, available through the site’s shop.
  • Private Members Room (also known as the COBF Zoom Room) reserved for paid members.
  • Podium section for blog-style, user-submitted articles, accessible via forum login.
  • Community features include periodic stock-picking competitions and contests.

Unique

  • Interactive Option Strategy Profit & Loss chart with multi‑leg templates (e.g., covered call, verticals, iron condor, calendar).
  • Per‑ticker chart library: volume, open interest, greeks (Δ, Γ, Θ, ν), implied vol skew, max pain, expected move, probability distribution.
  • Gamma Exposure (GEX) and Delta Exposure (DEX) visualizations.
  • Option Contract History (price, volume, OI, greeks) with intraday history (up to ~1‑minute intervals) and extended history.
  • Market Trends screens: most active by ticker/contract, highest OI, IV/IV rank, unusual activity, options flow (aggregates update ≈10 min).
  • Watchlists and Saved Trades dashboards (Premium features).
Tested

Verified by hands-on testing inside Find My Moat

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Editor pick

Featured inside curated shortlists

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Frequently Asked Questions

Which workflows do Corner of Berkshire & Fairfax (COBF) and OptionCharts both support?

Both platforms cover Blogs workflows, so you can research those use cases in either tool before digging into the feature differences below.

Do Corner of Berkshire & Fairfax (COBF) and OptionCharts require subscriptions?

Both Corner of Berkshire & Fairfax (COBF) and OptionCharts keep freemium access with optional paid upgrades, so you can trial each platform before committing.

How can you access Corner of Berkshire & Fairfax (COBF) and OptionCharts?

Both Corner of Berkshire & Fairfax (COBF) and OptionCharts 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?

Corner of Berkshire & Fairfax (COBF) differentiates itself with Public discussion boards focused on Berkshire Hathaway, Fairfax Financial, general investing, books, and broader market conversations., Members-only sections covering investment ideas, personal finance, strategies, real estate, wealth management, events, and more., and One-time lifetime membership fee of $49.99 USD, available through the site’s shop., whereas OptionCharts stands out for Interactive Option Strategy Profit & Loss chart with multi‑leg templates (e.g., covered call, verticals, iron condor, calendar)., Per‑ticker chart library: volume, open interest, greeks (Δ, Γ, Θ, ν), implied vol skew, max pain, expected move, probability distribution., and Gamma Exposure (GEX) and Delta Exposure (DEX) visualizations..

Keep exploring

Stay on top of related tools

Browse the categories and profiles that overlap most with this comparison to round out your shortlist.

Recommended tools

These profiles share overlapping coverage with both sides of this matchup.

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.