What is thesis monitoring?
Thesis monitoring is the practice of tracking the specific reasons you own each stock against live evidence (filings, earnings, news), so you are told the moment one of those reasons weakens, instead of finding out quarters later.
Also called: investment thesis monitoring, thesis tracking, thesis check
How it works
You write the thesis as a short list of reasons to own the stock, the pillars. For each pillar you write a breaks-if condition: the single fact that would prove it wrong. Then each pillar is scored continuously against new primary sources, and the position is flagged when a pillar weakens or breaks.
The point is to separate two things investors usually blur: the price moving and the reasons changing. Thesis monitoring watches the reasons.
Why monitor a thesis at all
Most tools tell you what you own and what it is worth. Almost none tell you whether you should still own it. The reasons you bought a stock are the thing that actually decides the position, and they are exactly the thing nobody tracks. Thesis monitoring is the layer that closes that gap.
Common questions
How is thesis monitoring different from a portfolio tracker?
A tracker reports prices, balances, and allocation. Thesis monitoring tracks the reasons behind each holding against live evidence and tells you when a reason weakens. One watches the value; the other watches the case for owning it.
What is thesis monitoring: open it