Big tech stocks retreated Sunday (September 14) in overnight trading, with mainstream names closing lower across the board. TSM (TSM.US) led declines, falling 2.56% to $422.14 in overnight session, touching a low of $421.10. Tesla (TSLA.US) slipped 1.46% to $360.10, bottoming at $358.77. Meta (META.US) declined 1.15% to $640.61. Among other names, Amazon (AMZN.US) fell 0.86% to $254.58, Apple (AAPL.US) dropped 0.85% to $329.43, and Google (GOOGL.US) slipped 0.83% to $335.68. On the derivatives front, 2x leveraged Tesla ETF (TSLL.US) fell 2.88%, while inverse ETF (TSDD.US) rose 2.98%, showing significant amplification effect.

On the news front, the absence of major catalysts over the weekend triggered profit-taking after consecutive gains. Most tech giants closed higher during Friday's regular session, prompting investors to lock in gains during overnight hours, weighing on the sector overall. TSM, as the semiconductor leader, posted the steepest decline, reflecting cautious sentiment on near-term chip valuations. The inverse ETF TSDD's gain further confirmed the sector's pullback momentum.