Nasdaq Up 2% Near Record as Meta Jumps 11%, AMD Gains 8%

The Nasdaq Composite rose 2% to near a record on Sept. 21, 2026, Yahoo Finance reported. Meta jumped 11% and AMD gained 8%. For savers and 401(k) holders, that concentration lifts index returns but adds risk if those few stocks stall. I see how many stocks are rising, not just the headline price, as the test.