Turn a hunch into a thesis you can hold yourself to
The difference between investing and gambling is a written thesis. When you state in advance why an investment should work, what would prove it wrong, and at what point you will sell, you give yourself a fixed reference that survives the noise of a moving price. This builder walks you through the parts every disciplined investor writes down — the bull case, the catalysts, the risks, the valuation you are paying, the size you are taking, and the conditions that end the trade.
How it works
You supply your reasoning and the tool arranges it into a standard one-page memo:
Asset — what you are buying and at what price
Bull case — one falsifiable sentence on why it works
Catalysts — events that cause the market to re-rate it
Risks — what breaks the thesis, each monitorable
Valuation — the basis and multiple you are paying
Sizing — position size and the conviction behind it
Exit — price target and the conditions to sell
Each section maps to a question a skeptical partner would ask. The bull case states the mechanism, the catalysts give it a timeline, the risks make it falsifiable, and the exit removes the hardest decision — when to sell — from the heat of the moment. Everything renders as clean Markdown for your research notes.
Tips and example
Write the bull case so a critic could attack it: “operating margin rises from 12% to 20% as the second plant reaches scale” invites scrutiny in a way that “strong management” never will. For every catalyst, note roughly when it lands — a thesis with no timeline can stay “right but early” forever. Make each risk specific and watchable: “a key patent expires in 2027” is something you can track, “competition” is not. Set the exit in two directions — the target that means the thesis worked, and the disconfirming fact that means it failed — so you sell on evidence, not on mood.