Pop quiz: When did the Dow last drop as much as it did today?

Short answer: Who cares? You’re not selling today, so don’t fret. Longer answer: The last time was eight months ago, but let’s put things in context. The Dow dropped by more than 800 points today — an amount that definitely catches attention. But in the grand scheme of things, it’s just a blip on the radar. So, what happened today? Basically, interest rates. Treasury yields have surged lately, specifically the yield on the 10-year U.S. Treasury note. It spiked last month and has continued its rise into October. A rise in yields means higher borrowing costs for corporations and investors. It also makes stocks look less attractive compared to bonds (For the pros out there, higher yields also make stocks look more expensive because of a higher “discount rate.”) On top of that, richer rates of so-called risk-free bonds can attract investors away from equities, which are perceived as comparatively riskier. MARKET CONTEXT Over the past two years, U.S. markets have soared. The Dow Jones Industrial Average gained more than 7,800 points in 2016 and 2017, and has continued rising this year. Dramatic numbers reported during the volatility of the first days of February kicked off a rockier 2018 than