High-priority alert based on source significance and keyword relevance.
Context
What happened: Nvidia Corporation expanded its share repurchase authorization to $235 billion, which the article describes as a significant capital allocation shift.
Key numbers: Buyback authorization $235 billion. Repurchase capacity equals 4.3% of NVDA market cap. Total repurchases projected near $290 billion through FY28. Base case price target $367, upbeat target $496.40, up 5% and 3%.
Why it matters: The article calls the buyback expansion the key bullish signal, citing higher future yield on cost, and raises its price targets on the move.