Another busy week on Wall Street has investors keyed in on several stories this morning. Over the weekend, Berkshire Hathaway (BRK-A, BRK-B) Chairman and CEO Warren Buffett released his annual letter to shareholders. In the letter, Buffett spoke about his longtime partner Charlie Munger, who died late last year, while also touching on Berkshire's record profit. Investors will also be keyed in on inflation data this week in both the U.S. (PCE) and Europe, as well as watching shares of Walmart (WMT) which implemented its 3-for-1 stock split after the market close on Friday. Yahoo Finance trending tickers include Occidental Petroleum (OXY), bitcoin (BTC-USD), and Robinhood (HOOD).

Key guests include:
9 a.m. ET - Mark Zandi, Moody's Analytics Chief Economist
10:15 a.m. ET - Lawrence Yun, National Association of REALTORS Chief Economist
10:30 a.m. ET - Akash Palkhiwala, Qualcomm CFO & COO
10:40 a.m. ET - Stephen Yalof, Tanger CEO
10:50 a.m. ET - Sébastien Bazin, Accor CEO
11 a.m. ET - Gary Schlossberg, Wells Fargo Investment Institute Global Market Strategist