Nvidia (NASDAQ: NVDA) surged 4.04% on July 15 to close at $170.70, propelling the Nasdaq Composite to a fresh record high of 20,677.80. The move follows a major regulatory breakthrough and a bullish analyst upgrade from Mizuho, yet technicals suggest the rally may be entering overextended territory.Mizuho lifts NVDA target to$192 on China AI chip newsDriving the spike was confirmation that the U.S. government has approved Nvidia’s long-delayed H20 AI chip shipments to China. The decision reopens access to ...