Beginner guide to why even good news market drops ConclusionDespite supportive headlines—President Trump’s remarks about reduced tariffs on Canada and the Federal Reserve’s signal of more easing for corporate buybacks—Nasdaq declined today. The primary driver was profit-taking in mega-cap technology shares after a sharp rally, compounded by lingering inflation data and quarterly options expiration (quad witching) volatility. The positive macro headlines were largely priced in, while traders focused on stretched valuations and rising Treasury yields. Key Information Factor Detail Nasdaq Composite Fell ~1.2% intraday (approx. 180 points) as of 2:30 PM ET Mega-cap drag Nvidia (-2.4%), Microsoft (-1.8%), Apple (-1.5%) collectively shaved ~90 points off the index Treasury yields 10-year y