U.S. Indexes Close Higher for the Week; Marvell Drags on Tech; Bond Yields Rise After Warsh Speech

Major U.S. stock indexes closed higher for the week ending August 28, 2026, despite weakness in the technology sector. Marvell Technology (MRVL) weighed on tech stocks, dragging down the broader sector's performance.

Why it matters: Bond yields rose following a speech by Warsh, adding upward pressure on rates.