Major customer won or lost
🔧 ProductA large customer signs on, or an existing one leaves for a competitor.
Typical size
3-20% where customer concentration is high
Timeframe
Immediate; revenue effect over following quarters
Evidence
0 logged events
Why it moves the price
For concentrated businesses one customer can be a large share of revenue, so the change flows almost directly into the forecast.
What separates a good call from a naive one
Check the customer-concentration disclosure first — losing a customer worth 20% of revenue is a different event from one worth 2%. Losing an anchor customer also signals to others that switching is viable.
Measured impact
Every logged event is measured against real closing prices: the move from the close before the event, compared with the S&P 500 over the same window.
Next day
Not measured yet
After 1 week
Not measured yet
After 1 month
Not measured yet
No measured verdict yet — 0 events logged. Three or more are needed before the data says anything useful.
The evidence (0)
Every row is a real event, measured against actual closing prices.
Measured from historical closing prices. Past reactions do not guarantee future ones. Not financial advice.