The analysis for NVDA (NVIDIA) indicates a potential 3-5 week sell-off towards the upper 140s, given its recent closure below the 5-month channel bottom at 176.08 and a secondary sell signal. Key levels to watch include 168.79 as a session containment level and 149.18 as a longer-term objective. Resistance is identified between 180.57 and 182.70. If NVDA closes above 182.70, the analysis will become invalid, with a new target of 219.64 over the next 2-3 months. The QQQ (Invesco QQQ Trust Series), having tested its 2.5-year channel top, is seen as susceptible to a bearish rotation into the fourth quarter. A QQQ settlement above the channel would cause the NVIDIA target to go up to 219.64.