Research says the stocks you agonize over drive about 10% of your result. The market and your asset mix drive the other 90%. Here's the bigger lever.

Two retirees, same average return, same withdrawals. One ends with $1.3M, the other is sinking. The only difference was the order the bad years arrived.

There's one exception to "no free lunch" in investing: diversification. Combine assets that don't move together and you cut risk without giving up return.

Your risk comes in two halves. One the market pays you for. The other — the risk in your company stock — you carry for free. Here's how to tell them apart.

Your company stock returned 25%? That's only half the story. Here's how to measure the risk hiding in a concentrated position — and what it costs you.

My 2014 Subaru Forester isn't about being cheap. It's about what a luxury car actually costs — measured in years of your life, not dollars. Here's the math.

ESPPs, RSUs, NSOs, ISOs — four kinds of equity, four levels of difficulty. Here's a ski-run framework that finally makes your equity comp make sense.

When your company files its S-1, the clock starts. The decisions you make in the months before an IPO often matter more than anything you do after. Here's the pre-IPO checklist.

Some of your "incentive stock options" may not be ISOs at all. The $100K rule quietly reclassifies them as NSOs — with very different taxes. Here's how to tell.