Here are some of the major companies whose stocks moved on the week’s news.

Renewed hope for interest-rate cuts fueled a rally, though shares of some companies like TD Bank fell.

Cocoa prices fell sharply this week, with liquidity drying up and trading growing volatile as buyers balk at high expenses.

The innovative structure of Berkshire Hathaway stands out—and benefits shareholders

Forget about the hot debuts like Reddit’s, and follow these price and volume patterns.

Technology has the potential to help both buyers and sellers.