BlockBeats news, September 28th, according to BIT (bit.com) market data, Nvidia (NVDA.O) rose about 3.6% intraday, the largest single-day gain since September 2nd.On the news front, Nvidia welcomed multiple positive developments today. Nvidia's current investment portfolio includes 13 public companies and 229 private companies. The contract value in Anthropic's report alone has exceeded $180 billion.Today the company announced it will increase its stock buyback authorization by $150 billion. At the same time, the company's commitment amount increased from $119 billion last quarter to $279 billion.