Event contracts give markets a way to price in an uncertain future, says Interactive Brokers founder Thomas Peterffy.

Amazon wants to dominate the three core layers of artificial intelligence: infrastructure, large language models, and software.

Plus, what we think of Berkshire’s new positions and why Buffett might be raising so much cash.

Bill Ackman's Pershing Square Capital Management more than quintupled its position in Nike (NKE) among its third quarter ...