VOL. XCIV, NO. 247

★ A CURATED DIRECTORY OF FINANCIAL TOOLS AND RESOURCES ★

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Friday, December 26, 2025

Tool Comparison

GammaWins Calculator vs Yahoo Finance comparison

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

Quick takeaways

GammaWins Calculator adds Options P&L, and Options & Derivatives coverage that Yahoo Finance skips.

Yahoo Finance includes Screeners, Watchlist, Portfolio, News, Alerts, Calendar, Financials, Analyst Recommendations, Analyst Price Targets, ETF Overview, ETF Holdings, ETF Performance, Options, Dividends, Splits, and Education categories that GammaWins Calculator omits.

Yahoo Finance offers mobile access, which GammaWins Calculator skips.

In depth comparison

GammaWins Calculator logo

GammaWins Calculator

gammawins.com

Web-based options profit calculator focused on payoff + Greeks visualization. Core tools are usable without an account; some account-only features will prompt sign-in. Market data shown in the calculator is currently 15-minute delayed; GammaWins states paid tiers are planned for live data + direct index feeds.

Platforms

Web

Pricing

Free

Quick highlights

  • Payoff/strategy value visualization over time and underlying price, with optional Greeks overlays.
  • Built-in templates for common options strategies (single-leg, spreads, volatility, and complex multi-leg strategies) and supports building custom multi-leg strategies.
  • Supports US equity and equity-index options plus Danish/Swedish/Norwegian equity and index options listed on Nasdaq Nordic.
  • Options quotes are sourced via OPRA (calculator currently displays 15-minute delayed data for options and stock prices).
  • Modeling: uses Black-Scholes for European options (mainly index options) and stock calls, and Bjerksund-Stensland for American puts.

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Yahoo Finance logo

Yahoo Finance

finance.yahoo.com

Hands-on review

One of the most widely used finance portals, offering global market coverage, news, screeners, and portfolio tools. A free plan provides core features, while paid Silver and Gold tiers add extras such as research, enhanced filters, and historical data downloads. Real-time vs delayed quotes vary by exchange, and mobile apps support price alerts and personalized news.

Platforms

WebMobile

Pricing

FreeSubscription

Quick highlights

  • Free plan with optional Silver and Gold subscriptions that unlock advanced features and research.
  • Historical price downloads in CSV format are gated to Gold; portfolio and watchlist exports remain free.
  • Coverage spans 100+ exchanges worldwide, with clear labeling of real-time versus delayed data.
  • Interactive full-screen charts with dozens of technical indicators and extended-hours toggles.
  • Equity, ETF, and mutual fund screeners with hundreds of filters; Plus tiers add premium filters such as Morningstar ratings.

Community votes (overall)

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Where they differ

GammaWins Calculator

Distinct strengths include:

  • Payoff/strategy value visualization over time and underlying price, with optional Greeks overlays.
  • Built-in templates for common options strategies (single-leg, spreads, volatility, and complex multi-leg strategies) and supports building custom multi-leg strategies.
  • Supports US equity and equity-index options plus Danish/Swedish/Norwegian equity and index options listed on Nasdaq Nordic.
  • Options quotes are sourced via OPRA (calculator currently displays 15-minute delayed data for options and stock prices).

Yahoo Finance

Distinct strengths include:

  • Free plan with optional Silver and Gold subscriptions that unlock advanced features and research.
  • Historical price downloads in CSV format are gated to Gold; portfolio and watchlist exports remain free.
  • Coverage spans 100+ exchanges worldwide, with clear labeling of real-time versus delayed data.
  • Interactive full-screen charts with dozens of technical indicators and extended-hours toggles.

Feature-by-feature breakdown

AttributeGammaWins CalculatorYahoo Finance
Categories

Which research workflows each platform targets

Shared: Data Visualizations

Unique: Options P&L, Options & Derivatives

Shared: Data Visualizations

Unique: Screeners, Watchlist, Portfolio, News, Alerts, Calendar, Financials, Analyst Recommendations, Analyst Price Targets, ETF Overview, ETF Holdings, ETF Performance, Options, Dividends, Splits, Education

Asset types

Supported asset classes and universes

Options, Stocks

Stocks, ETFs, Mutual Funds, Options, Futures, Commodities, Currencies, Cryptos, Bonds

Experience levels

Who each product is built for

Intermediate, Advanced

Beginner, Intermediate, Advanced

Platforms

Where you can access the product

Web

Web, Mobile

Pricing

High-level pricing models

Free

Free, Subscription

Key features

Core capabilities called out by each vendor

Unique

  • Payoff/strategy value visualization over time and underlying price, with optional Greeks overlays.
  • Built-in templates for common options strategies (single-leg, spreads, volatility, and complex multi-leg strategies) and supports building custom multi-leg strategies.
  • Supports US equity and equity-index options plus Danish/Swedish/Norwegian equity and index options listed on Nasdaq Nordic.
  • Options quotes are sourced via OPRA (calculator currently displays 15-minute delayed data for options and stock prices).
  • Modeling: uses Black-Scholes for European options (mainly index options) and stock calls, and Bjerksund-Stensland for American puts.
  • Dividend handling currently assumes a constant dividend rate based on recent payout history; a more advanced dividend model using exact ex-dividend dates / finite-difference is described as part of an upcoming paid plan.

Unique

  • Free plan with optional Silver and Gold subscriptions that unlock advanced features and research.
  • Historical price downloads in CSV format are gated to Gold; portfolio and watchlist exports remain free.
  • Coverage spans 100+ exchanges worldwide, with clear labeling of real-time versus delayed data.
  • Interactive full-screen charts with dozens of technical indicators and extended-hours toggles.
  • Equity, ETF, and mutual fund screeners with hundreds of filters; Plus tiers add premium filters such as Morningstar ratings.
  • Portfolio tracking with editable lots and transaction history; certain brokerages can be linked for automatic holdings sync.
Tested

Verified by hands-on testing inside Find My Moat

Not yet

Yes

Editor pick

Featured inside curated shortlists

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Frequently Asked Questions

Which workflows do GammaWins Calculator and Yahoo Finance both support?

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

Do GammaWins Calculator and Yahoo Finance require subscriptions?

Both GammaWins Calculator and Yahoo Finance keep freemium access with optional paid upgrades, so you can trial each platform before committing.

Which tool has mobile access?

Yahoo Finance ships a dedicated mobile experience, while GammaWins Calculator focuses on web or desktop access.

What unique strengths set the two platforms apart?

GammaWins Calculator differentiates itself with Payoff/strategy value visualization over time and underlying price, with optional Greeks overlays., Built-in templates for common options strategies (single-leg, spreads, volatility, and complex multi-leg strategies) and supports building custom multi-leg strategies., and Supports US equity and equity-index options plus Danish/Swedish/Norwegian equity and index options listed on Nasdaq Nordic., whereas Yahoo Finance stands out for Free plan with optional Silver and Gold subscriptions that unlock advanced features and research., Historical price downloads in CSV format are gated to Gold; portfolio and watchlist exports remain free., and Coverage spans 100+ exchanges worldwide, with clear labeling of real-time versus delayed data..

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.