Bond yield spike
π MacroLong-term government bond yields rise sharply.
Typical size
1-4% on the index; more for growth stocks
Timeframe
Immediate; persists while yields stay elevated
Evidence
0 logged events
Why it moves the price
Raises the discount rate applied to future cash flows and offers a competing risk-free return, compressing the multiple investors will pay for equities.
What separates a good call from a naive one
The pain concentrates in long-duration assets β unprofitable growth companies whose value sits far in the future fall multiples of the index move, while cash-generative value names can be unaffected.
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 β 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.