CapEdge vs GammaWins Calculator comparison

Unique

• Web-based research platform focused on US equity capital markets that lets users instantly search SEC EDGAR filings and earnings transcripts, monitor IPOs, and track investor holdings across time; navigation exposes Earnings, IPOs, Transcripts, Investor Holdings and an EDGAR Filing Screener from the homepage.
• Advanced EDGAR filing search supports natural-language and keyword queries, filters by ticker, company name, filing type, and date, plus Filing Analysis views that show which companies mention a theme and how its popularity changes over time. Power users can use AND/OR/NOT boolean operators, with search history saved for later reuse.
• Improved filing reader for most SEC forms (10-K, 10-Q, 8-K, 6-K, S-1, F-1, S-4, 20-F, 40-F, DEF 14A, etc.) including similar-filing navigation, customizable font and size, side table-of-contents, and advanced content analysis such as sentiment scores, readability measures, and lists of new and removed words across successive filings.
• Diff viewer for financial filings highlights changes between successive 10-K/10-Q documents, coloring removed text in one color and new text in another, and attempting to align similar data-table rows across filings to make numeric changes easier to spot.
• Real-time filing alerts: CapEdge sends email alerts for new filings from favorite companies and for favorite searches, typically within about a minute of SEC EDGAR submission; users can restrict alerts by filing groups (financial reports, company news, registrations/prospectuses, proxies, or specific form types), and emails include the full main filing text or the relevant press release exhibit.
• Favorites system and personal dashboard allow users to star companies and searches, organize them into folders with separate notification settings, browse search history, and manage alert preferences; users can annotate filings and maintain private or shared notes tied to filings and tickers.

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.