S&P 500 slides after CPI as U.S. market erases $1T

Over $1 trillion wiped out? Yesterday’s claim is unverified

A headline claim that over $1 trillion was erased from the U.S. stock market yesterday remains unverified as of publication. Single-session loss figures of that size generally require corroboration from index-level market-cap calculations and contemporaneous reporting.

For context, Bloomberg reported in March 2025 that more than $1 trillion was wiped from the Nasdaq-100 in a single trading day (as reported by Bloomberg: https://www.bloomberg.com/news/newsletters/2025-03-10/stock-slump-wipes-1-trillion-off-nasdaq-100). Anadolu Agency later noted that over $1 trillion in market value was shed by major U.S. tech shares over a week in early February 2026 (according to Anadolu Agency: https://www.aa.com.tr/en/economy/major-us-tech-shares-see-over-1-trillion-wiped-off-this-week-in-major-sell-off/3822620). These precedents show that similarly large figures often apply to specific indices or multi-day windows, not necessarily the entire market in one session.

Verification typically involves reconciling closing prices with index weights to estimate market-cap changes, then cross-checking against index-provider tallies. Without such corroboration for yesterday’s session, the $1 trillion figure should be treated as unconfirmed.

Key drivers: CPI inflation, higher yields, shifting Fed expectations

According to MarketWatch’s live coverage, trading was set to be shaped by the latest Consumer Price Index release, with participants closely watching how the inflation print would steer the session (as reported by MarketWatch: https://www.marketwatch.com/livecoverage/stock-market-today-dow-s-p-500-and-nasdaq-set-to-ease-as-traders-await-cpi?gaaat=eafs&gaan=AWEtsqek3PoJ8wXThYLY19fVqNkq-5qR69HBbYScZ4O6FQWcTMh23vMjKY3&gaats=698ef148&gaasig=Z9TS-7tSmaxLD92TtAJAmwYFahJRBAtN9WQDObIfPkuBAJB7Xz09YvCXdEZxeVi70COKJOLfusmBSA8DB2oqw%3D%3D). That backdrop helps explain the session’s tone even if a precise market-cap loss has not been validated.

In market mechanics, a firmer-than-expected CPI can pressure U.S. Treasurys, pushing yields higher and tightening financial conditions; that, in turn, can recalibrate expectations for Federal Reserve policy. Conversely, a softer CPI would typically ease yield pressures and support risk assets, though the net impact depends on positioning and sector mix.

Impact across S&P 500, Nasdaq-100, metals and crypto

Cross-asset selling on Feb. 12 spanned precious metals, leading U.S. benchmarks, and cryptocurrencies. As reported by TheStreet: “The markets are witnessing another day of bloodbath as precious metals, leading U.S. market benchmarks, and cryptocurrencies crashed on Feb. 12.” (https://www.thestreet.com/crypto/markets/gold-silver-sp-500-crypto-crash-again)

Within equities, the pressure was visible in mega-cap technology. Based on data from Yahoo Finance, Apple Inc. closed at 261.73 on Feb. 12, down 5.00% on the day, alongside ticker-page headlines citing AI-development setbacks as well as regulatory and patent concerns.

That setup is consistent with declines across the S&P 500 and Nasdaq-100 and contemporaneous weakness in metals and crypto. While cross-asset correlations can vary over time, the reported pattern underscores a broader risk-off tone tied to inflation sensitivity and policy expectations.