CNBC Daily Open: Nvidia beat expectations – as expected?

This report is from today's CNBC Daily Open, our international markets newsletter. CNBC Daily Open brings investors up to speed on everything they need to know, no matter where they are. Like what you see? You can subscribe  here .

Nvidia: Great is not good enough
Nvidia's numbers continue to dazzle. The chipmaker beat earnings per share and revenue expectations: net income, at $16.6 billion, more than doubled compared with a year ago, while revenue surged 122%. Alongside its earnings, Nvidia also announced a $50 billion stock buyback. Still, its shares fell around 7% in extended trading.

Choppy stocks
Major US indexes fell Wednesday, dragged down by Nvidia as investors were on edge ahead of its earnings. Super Micro Computer was also a big drag, with its shares plunging 19% after the company said it'd not file its annual report on time, and Hindenburg Research disclosed a short position on it. On the other hand, European markets mostly closed higher.

The ride's not over
Stocks took investors on a bumpy ride this August. Spooked by worse-than-expected U.S. economic data, seeing a sharp sell-off at the start of the month. Even though the S&P 500 has recovered its losses, Goldman Sach's Christian Mueller-Glissmann sees it as a cause for concern. People aren't interested in the thrill of a roller-coaster ride anymore.

Big non-tech
Berkshire Hathaway, Warren Buffett's conglomerate, hit $1 trillion in market capitalization on Wednesday. It's the first U.S. non-technology company to reach that milestone. Berkshire has climbed more than 28% this year, far outpacing the S&P 500's 18% rise. This might be the best birthday present for Buffett, who turns 94 on Friday.

[PRO] Nvidia's market hold
What moves markets? In recent years, thanks