Margin trading is a powerful tool. It lets you use borrowed capital to amplify your positions and chase bigger potential ...

This is the yearly update on my Amazon coverage, where I focus on the deconsolidation of Amazon's financial statements. Amazon meaningfully improved margins throughout every part of the business. Both ...

Fifteen years ago, Ian Ayres and Barry Nalebuff published a book with an intriguing argument. For decades, financial advisers had suggested to retail investors that they take more risk when young, ...