After an event
Pick an event to see what the market did in the weeks and months after each past time it happened. How it works →
Or ask about an index move, e.g. “Nasdaq falls 10% in 2 days” or “Hang Seng up 5% in a week”.
US credit rating downgrade: what came after
The market here is the S&P 500, measured by the SPY fund with dividends added back · 2 times in our prices (2016-01-04 to 2026-10-30) · measured from that day's close
| 2 weeks | 4 weeks | 3 months | |
|---|---|---|---|
| Any window | +0.9% · 66% | +1.8% · 70% | +4.6% · 79% |
“Any window”: the middle result, and how often the market was up, over every window of the same length since 2016-01-04, event or not.
Too few to summarise: we need 5 and our prices hold 2. Here is each one.
Each one (2), newest first
| Date | 2 weeks | 4 weeks | 3 months |
|---|---|---|---|
| 2025-05-16 | +0.2% | +0.5% | +7.9% |
| 2023-08-01 | -2.3% | +0.2% | -6.8% |
- What happened after past ones, not what will happen after the next one.
- Dates: Fitch and Moody's announcements as reported, checked 2026-11-08. Source