U.S. markets experienced significant volatility Monday following speculative reports about potential deescalation in the Iran conflict. The S&P 500 surged 1.02% to close at 6,886.24, erasing year-to-date losses tied to the ongoing war. The Nasdaq rose 1.23%, and the Dow added 301 points after earlier declines.

Market Speculation

Traders initially reacted to a social media post by a New York Post reporter suggesting Iran was considering a U.S. proposal centered on uranium enrichment. Brent crude prices dropped sharply by 4%, only to rebound later in the day. The reporter later clarified that her post contained no new information, but the damage—and recovery—had already played out in the markets.

The market trades in advance of the headlines. Investors should do the same.

Morgan Stanley’s Mike Wilson noted in a client memo that the Iran-related selloff was a correction within a broader bull market, with earnings accelerating despite the geopolitical turmoil.

The 'TACO Trade'

Wall Street has coined the term "TACO trade"—short for "Trump Always Chickens Out"—to describe the pattern of buying dips during Trump-era escalations. Nine of the S&P 500’s 10 best days since Trump’s second term began have been driven by signs of deescalation, according to MarketWatch data.

As U.S. workers and industries navigate economic uncertainty, the market’s reliance on geopolitical speculation underscores the need for policies that prioritize domestic stability over globalist trade arrangements.