CorporateAction.io — Interactive Corporate Event Impact Calculator
A web tool where retail investors input their holdings, stock price, and a specific corporate action (share split, secondary offering, dilution %, buyback), and the calculator shows real-time impact on share count, cost basis, portfolio value, and EPS. Includes scenario modeling (e.g., 'What if they issue 20M new shares?') and historical case studies showing how similar events played out for real stocks.
16 weeks • 70% confidence
Value Proposition
Eliminates the 30-minute forum search and guesswork by giving instant, visual clarity on exactly how a corporate action changes their personal position. Beats brokerage tools (which show the event but not the math) and financial advisors (who charge $200+/hr for this explanation). Reduces anxiety-driven panic selling.
Target Audience
Self-directed retail investors aged 25–55 with $10k–$500k portfolios, active on Reddit/Bogleheads, using Fidelity/Schwab/Interactive Brokers
Key Features
- Input-driven calculator: paste ticker, shares owned, entry price, select event type from dropdown
- Real-time stock data integration (Alpha Vantage or IEX Cloud) to auto-populate current price and float
- Side-by-side before/after portfolio snapshots with EPS impact visualization
- And more, with full implementation detail...
Tech Stack
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Sign up freeOriginal Problem
Individual investors struggle to understand how corporate actions like share dilution affect their stock valuationsRetail investors lack clear, accessible explanations of how specific corporate events (share splits, secondary offerings, float increases) impact stock prices and their portfolio value. They turn to forums and Q&A sites because financial advisors are expensive, brokerage platforms don't explain mechanics clearly, and financial media oversimplifies complex scenarios. This knowledge gap leads to poor investment decisions and anxiety about holdings.
Score: 17.5%