Apple shares turned lower as the iPhone maker kicked off its Worldwide Developers Conference Monday. Read more on the event and what's at stake for Apple:

CNBC's 'Mad Money' host and veteran market commentator Jim Cramer is not impressed with Apple Inc. (Nasdaq: AAPL) repurchasing its stocks of late. With a market cap of $3 trillion, Apple is the third-largest company in the world that is well-known for its flagship tech products such as iPhones, iPads, MacBooks, etc.

Apple execs didn't have a super satisfying answer about what went wrong with AI Siri, but they also don't really need one.

In addition to inflation and US-China trade, a key bond auction is on investors' radar. A $22 billion sale of 30-year bonds is scheduled for Thursday.

Apple shares didn't get the boost that investors hoped for from the company's highly anticipated Worldwide Developers Conference this week. Monitor these important support and resistance chart levels.

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Apple announced new artificial intelligence features at the Worldwide Developers Conference keynote June 9. The company launched testing versions of live translation, visual search and a workout assistant. Apple Intelligence will also be a part of the Reminder, Messages and Apple Wallet apps.

Bloomberg journalists discuss today's biggest winners and losers in the stock market. Listen for analysis on the companies making news on Wall Street.

The stock is currently 21% below its peak. So, it has some work to do to get back to its former glory. Legendary investor Warren Buffett and his conglomerate, Berkshire Hathaway, have sold a sizable chunk of their shares in the past several quarters.

Apple stock is down 20% year-to-date, badly underperforming the rest of the Magnificent Seven. Some top voices on Wall Street see a buying opportunity.

Apple is seen as behind the pack in AI, and the company had a chance to change that perception with its WWDC keynote on Monday. But shares fell, suggesting investors weren't too impressed with what the company previewed.