Both Nvidia and Alphabet have big chip opportunities ahead.

Alphabet said it plans to sell $80 billion in stock, including through a $10 billion investment by Berkshire Hathaway.

Alphabet (NASDAQ: GOOG) (NASDAQ: GOOGL) had an incredible run during September. Its stock rose 14% throughout the month, which is a huge move considering that Alphabet is around a $3 trillion company.

Google's parent company Alphabet was created in 2015 and is now worth more than a trillion dollars. Learn more about its ...