· 5 min read
How News Affects Stock Prices
The same headline can move two companies in opposite directions. What matters is the transmission path.
News reaches a share price through a chain: the event changes an expectation about revenue, cost, risk or the discount rate applied to future cash flows. If you cannot name which of those changed, you have not explained the move.
Direct and indirect exposure
An export restriction hits the exporter directly and its customers indirectly. Sometimes the indirect name moves more, because its exposure was less widely understood before the news.
Volume is the confirmation
A price move on unremarkable volume is weak evidence that anyone repriced anything. A move on well-above-average volume means participants acted, not just quoted.
Sector context
If a whole sector moves with a single company's news, the market read the event as an industry signal. If only one name moves, the market read it as company-specific. Those two readings imply very different follow-through.
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