Below, we guide you through the five primary Greeks—delta, gamma, theta, vega, and rho—explaining what each tells you, how they interact, and why they matter when you're trading options.

Victor Wembanyama has already gone up against the U.S. in international events, most notably last year’s Paris Olympics. He’d like to be in that position more often.

The U.S. Ski Team just had a performance to remember. The women’s squad won medals in four out of five events at the world ...