In financial markets, “news” is any new information that, if true and not previously known by market participants, would be expected to change the price of a security or asset. Understanding what constitutes genuine news — versus noise, rumor, irrelevant information, or information already priced into the market — is a fundamental analytical skill. Most of what passes for “news” in financial media is either already discounted in prices, too ambiguous to reliably predict price direction, or trivial relative to the magnitude of the market reaction it generates.

The Market’s Information Processing

Efficient market theory holds that current prices fully reflect all publicly available information. If this is true, only genuine surprises — news that differs meaningfully from what the market expected — should move prices. The practical implication is that investors who rely on publicly available news are trading in information that the market has often already priced. The investor who reads an earnings release is typically trading against those who received and processed the same information seconds or minutes earlier through faster data feeds, pre-event positioning, and instantaneous algorithmic response.

Price as News Aggregator

Because price itself incorporates the collective judgment of all market participants about all available information, price movements — particularly sustained trends — are themselves a form of “news” about changes in the balance of supply and demand, risk appetite, and fundamental expectations. Technical analysts and trend followers implicitly recognize this by treating price as the most informative available signal about future price direction — more reliable than any individual news item that may be incomplete, misinterpreted, or already discounted.

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