Thematic fund flows
📈 MarketA stock is swept up in flows into or out of a popular thematic ETF or narrative basket.
Typical size
2-15% over weeks
Timeframe
As long as the theme is in favour
Evidence
0 logged events
Why it moves the price
Fund inflows force proportional buying of every holding regardless of individual fundamentals, and outflows force the reverse.
What separates a good call from a naive one
Explains why unrelated companies in a hot theme move together. The risk is asymmetric for small companies inside large funds — the mechanism that lifted them forces concentrated selling when the theme cools.
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.