The six-step test
Find the primary source, identify what is genuinely new, translate it into a financial driver, compare it with expectations, estimate timing and durability, and write the evidence that would confirm or invalidate the catalyst.
Stock news moves faster than careful analysis. A headline can be factually correct while implying the wrong conclusion about revenue, margins, risk, or valuation. The solution is not to ignore news; it is to process every potential catalyst through the same short test.
1. Find the primary source
Open the company release, SEC filing, regulator notice, court document, or official economic release. Check the date, exact wording, conditions, and attachments. A syndicated article can omit the part that determines financial impact.
For US public companies, the SEC says Form 8-K is used to disclose material events or information before the next scheduled annual or quarterly report. Search by ticker in EDGAR and compare the filing with the headline.
2. Identify what is actually new
Many headlines repeat information already disclosed. Ask:
- Was this event previously announced?
- Did only the timing change?
- Did the size, customer, economics, or probability change?
- Is this management guidance, a third-party estimate, or speculation?
A signed contract is not the same as a memorandum of understanding. An authorization is not the same as money spent. A product announcement is not the same as customer adoption.
3. Translate the event into a financial driver
If you cannot describe the bridge from event to cash flow, the headline may be interesting without being investable.
4. Compare the news with expectations
A stock reacts to surprise, not adjectives. “Record revenue” can disappoint if the market expected more. A loss can be positive if cash burn improves faster than expected. Use the pre-news share price, consensus estimates, management guidance, and recent positioning as context.
Write two sentences:
- What the market probably expected before the announcement.
- What the announcement changes relative to that expectation.
5. Estimate timing and durability
Classify the potential impact:
- Immediate: affects the current quarter or balance sheet.
- Medium term: requires a launch, capacity ramp, approval, or customer deployment.
- Long term: changes the competitive position but has uncertain near-term economics.
- Temporary: affects one period without changing normalized earning power.
A durable catalyst should change expected cash flows or risk beyond one trading session. Timing matters because even valuable projects can disappoint when revenue arrives later than the valuation assumes.
6. Define confirmation and invalidation
Turn the catalyst into a test:
Catalyst card
Event:
Primary source and date:
What is new:
Financial driver:
Expected timing:
Already in guidance?
Confirmation metric:
Invalidation evidence:
Next scheduled update:
This turns news from a reaction trigger into a research input. The next quarterly report, filing, product milestone, or customer disclosure can confirm whether the event is producing the expected result.
Common headline traps
- Large total contract value: revenue may be recognized over many years or depend on usage.
- “Partnership” language: economics may not be disclosed or material.
- Analyst target change: the target may follow the price without a meaningful estimate revision.
- Insider transaction: grants, tax sales, planned sales, and open-market purchases have different information content.
- Patent or approval: legal permission does not prove commercial demand.
- Layoffs: savings can improve margins, signal weaker demand, or do both.
Use the market reaction as evidence, not proof
Price and volume can show that investors consider the event important. They cannot tell you whether the long-term interpretation is correct. Check whether the reaction holds after management answers questions, details emerge, and analysts update estimates.
Scan current US stock headlines
Filter by ticker and sentiment, then apply the catalyst test before changing a thesis.
Open US stock market news →