Tech Stocks Lead Market Decline Amid Rising Bond Yields and Middle East Tensions

Stock market futures are expected to decline as technology shares experience a significant drop and crude oil prices retreat, reflecting investor concerns about rising bond yields and ongoing geopolitical tensions in the Middle East.

The tech-heavy Nasdaq Composite plummeted 1.3% on Tuesday, August 18, 2026, according to Yahoo Finance, with semiconductor and software stocks leading a broad selloff. The S&P 500 declined 0.69%, while the Dow Jones Industrial Average slipped 0.22% on the same day.

The tech sector has been particularly hard hit by rising bond yields, which reduce the present value of future earnings that growth-focused tech companies rely on. This trend has intensified as global fiscal deficits widen and inflation concerns persist, creating headwinds for equities that had driven much of the year's earlier gains.