Strike or labour action
🔧 ProductWorkers strike, or a costly new labour agreement is signed.
Typical size
1-8%
Timeframe
Duration of the action; cost effects are permanent
Evidence
2 logged events
Why it moves the price
Halts or slows production immediately, and a settlement permanently raises the cost base across the whole workforce.
What separates a good call from a naive one
Reactions are often smaller than expected because strikes are well telegraphed and lost production is partly recoverable. The lasting damage is in the settlement terms — model the wage increase across the entire workforce, not the days lost.
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
-1.41%
- Median
- -1.41%
- Moved up
- 50% of 2
- vs S&P 500
- -0.90%
After 1 week
-3.92%
- Median
- -3.92%
- Moved up
- 0% of 2
- vs S&P 500
- -2.88%
After 1 month
-9.55%
- Median
- -9.55%
- Moved up
- 0% of 2
- vs S&P 500
- -9.29%
No measured verdict yet — 2 events logged. Three or more are needed before the data says anything useful.
The evidence (2)
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.