This live blog is refreshed periodically throughout the day with the latest updates from the market.To find the latest Stock Market Today threads, click here. Happy Friday. This is TheStreet’s Stock Market Today for Dec. 19, 2025. You can follow the latest updates on the market here in our daily live blog. Update: 4:01 p.m ET Closing Bell That'll be the end of the last full trading week of 2025. The Nasdaq (+1.31%) finished out the day near day-highs, boosted by the staying power of the tech comeback. ...

Bitcoin investors are bracing for “Witching Friday” tomorrow, December 18, when billions of options are due to expire—making for what could be a highly volatile roller-coaster ride at the end of the week for the markets. Most Read from Fast Company Some $23 billion in contracts are set to expire on Deribit, the largest Bitcoin exchange, according to Bloomberg. Here’s what to know. What is ‘Witching Friday’? “Witching Friday,” also known as “triple witching” or “the triple witching hour,” refers to the ...

The third Friday of the month is coming up, which means it’s expiration week for equity options. I’ve been in this industry long enough to remember when most options expired on that day, but with the rise of weekly expirations, it now feels like options are closing out all the time.However, the third Friday of March, June, September, and December still feels special. These days are often called "triple witching days" as equity options, stock index options, and stock index futures all expire simultaneously. ...