The Dow dives over 600 points with volatility back big. Plus, Nvidia earnings come out after the bell. And, you’ve heard rates and inflation as culprits for recent market swings, but could something else be the cause? Themis Trading’s Joe Saluzzi gives us his take. Plus a look ahead to everything you need to know about tomorrow. Catch The Final Round at 3:45 ET p.m. with Jen Rogers, Yahoo Finance markets correspondent Myles Udland and columnist Rick Newman.

Winners and losers

Stocks in the red today include Yelp as it plans to take a loss in 2018 as it ramps up further investment, Teva as the generic drugmaker 2018 guidance fell short of expectations, and Tesla – shares dropping after it reported profit and revenue that was better than expected, but its overall loss was its biggest ever. For now, Tesla is standing by recently revised production forecasts for the Model 3.

There were some winners today. Stocks in the green include Virtu Financial on the back of an earnings beat as the HFT firm is seen as benefiting from all the market volatility; Woodward, on reports Boeing is in talks to buy the aero-parts maker for $4.8 billion; and Twitter, with shares jumping to a 52-week high as Twitter easily beat on earnings and revenue, with daily active users up 12% from a year ago.

The future of Blockchain and bitcoin

You may be surprised to hear that outside the markets, Bitcoin is actually up 10% today, and now back above 8,000. Joining the show to discuss what’s next for digital currencies and the blockchain is Michael Casey, author of the upcoming book, “The Truth Machine: The Block Chain and the Future of Everything’