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 ...

All right, let's talk about the change in retail investor sentiment when it comes to the Mag 7. So, right now they're driving about a third of the action, a third of the volume when it comes to the Mag 7, but you say that's down quite a bit from the levels that we were at last year and the year before. What does that say about the thoughts that this is a bubble. What does that say about retail investor confidence in the AI trade.>> Well, we're we're still only like, you know, one 2% off all-time highs. So, ...

Core Insights - The upcoming third Friday of the month marks the expiration week for equity options, particularly significant due to the simultaneous expiration of equity options, stock index options, and stock index futures, known as "triple witching days" [2][3] Performance Analysis - Historically, the S&P 500 Index (SPX) has underperformed during triple witching weeks, averaging a loss of 0.47% with only 53% of returns being positive since 2017 [3][5] - In comparison, other expiration weeks have shown slightly better performance with an average return of 0.11% and less than half of the returns positive, while non-expiration weeks have averaged a return of 0.37% with 61% of returns positive [4][5] - More recent data from 2021 indicates that triple witching weeks have averaged a loss of 0.29% with only 39% of returns positive, while non-expiration weeks maintained an average return of 0.38% with 61% of returns positive [7][8] Daily Performance Trends - During triple witching weeks, Mondays have shown a positive trend with the SPX being positive 72% of the time, averaging a gain of 0.14%, while Fridays, the expiration day, have been particularly poor with an average loss of 0.36% and only 22% of returns positive [11][12] Individual Stock Performance - Certain stocks have historically outperformed during triple witching weeks, particularly software companies like Palantir Technologies (PLTR) and Autodesk (ADSK), which have shown positive returns [15][16] - Conversely, stocks that have underperformed during these weeks include many in the real estate and construction sectors, such as Martin Marietta Materials (MLM) and Federal Realty Investment Trust (FRT), with average returns significantly below zero [18][19]