Stock Market Update: S&P 500 Futures Flat After Rally

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Dec 18, 2025

After four straight down days, stocks bounced back on cooler inflation numbers and strong tech guidance. But with Nike dragging futures and a record-breaking quadruple witching looming tomorrow, are we set for more volatility or the start of a broader rally into 2026? The market is at a crossroads...

Financial market analysis from 18/12/2025. Market conditions may have changed since publication.

Have you ever watched the stock market swing wildly one day and then seem almost calm the next? That’s exactly what we’ve been seeing lately, and Thursday felt like a much-needed breather after a rough stretch.

The major indexes finally snapped their losing streaks, climbing higher on the back of some encouraging inflation numbers and a rebound in technology shares. Now, as we head into Thursday evening, futures are basically treading water – a little red here and there, but nothing dramatic. It’s that quiet moment before the weekend, where everyone is wondering what Friday might bring.

A Welcome Pause After the Storm

In my experience following these markets, days like Thursday are often the ones that set the tone for what’s next. The S&P 500 and Dow both ended a four-day slide, while the Nasdaq put in a solid performance, up around 1.4%. What drove that? A couple of key things came together at just the right time.

First, the latest consumer price index came in softer than many had feared. Prices rose 2.7% year-over-year in November, a touch below expectations. For investors, that was music to their ears – it keeps alive the hope that the Federal Reserve might ease rates more aggressively next year.

Of course, not everyone is convinced it’s all smooth sailing. Some analysts pointed out that changes in how the data was compiled – after recent government disruptions – could mean December’s reading surprises to the upside. Still, for now, the market chose optimism.

Tech Leads the Charge Again

The real spark, though, came from the technology corner. After a few sessions where AI enthusiasm seemed to cool off, chipmakers and big tech names roared back. One standout report from a major memory chip company helped calm nerves.

They delivered guidance showing demand far outstripping supply for the foreseeable future. That single update lifted spirits across the sector. Suddenly, all seven of those dominant mega-cap tech stocks finished the day in positive territory. It’s a reminder of how concentrated market leadership has become.

I’ve found that these moments often reveal where real growth is happening. Artificial intelligence spending isn’t going away – it’s becoming the new engine for many companies. Yet the path to actual profits remains bumpy, and that’s why we see these sharp swings.

The significance and timing of the returns on AI investment remain uncertain. However, monetary easing, fiscal policy, and easing trade uncertainty, combined with AI spending as a new growth engine, point to a more favorable macro backdrop in 2026.

– Market strategist at a major asset management firm

That observation hits the nail on the head. Perhaps the most interesting aspect is how a rally could broaden beyond just a handful of leaders to include more companies actually putting AI to work.

Futures Tell a Mixed Story Overnight

As trading shifted to the after-hours session, things settled down. S&P 500 futures dipped fractionally, Nasdaq futures followed suit, and Dow futures took a slightly larger hit – down about 0.2%.

The main drag? A big sports apparel company reported results that disappointed on several fronts. Revenue in one of its key overseas markets fell, and management warned about pressure on margins from potential tariffs. Shares plunged 10% in extended trading, putting noticeable weight on the Dow.

It’s a classic example of how individual company news can ripple through the broader averages, especially when that stock carries significant index weight. These kinds of overnight moves often set an emotional tone for the next open.

Quadruple Witching: The Elephant in the Room

Looking ahead to Friday, there’s one event that could make things interesting – or downright chaotic. We’re heading into what’s known as quadruple witching, when options on stocks, indexes, and futures all expire simultaneously.

This time around, it’s shaping up to be historic. Analysts estimate over $7 trillion in notional options exposure will roll off – the largest ever recorded. When that much paper changes hands, volatility often spikes.

Traders reposition, hedges come off, and sometimes forced buying or selling amplifies moves in either direction. In a market already digesting inflation data and sector rotations, this could add extra fuel.

  • Increased intraday swings as positions unwind
  • Potential for sharp reversals late in the session
  • Heightened volume across major indexes
  • Opportunity for nimble traders to capitalize on mispricing

Seasoned investors know to expect the unexpected on these days. If you’re holding positions, it might be worth reviewing stops or considering reduced exposure.

Where the Major Indexes Stand This Week

Despite Thursday’s gains, the week as a whole has been challenging. The S&P 500 is still down roughly 0.8%, the Dow about 1%, and the Nasdaq similarly off around 0.8%.

That puts us in correction territory for some individual sectors, even if the broad market hasn’t officially tipped over. Semiconductors, for instance, sit roughly 8% below recent peaks – a meaningful pullback after the torrid run earlier this year.

Context matters here. We’ve come off all-time highs not long ago, so a bit of consolidation isn’t surprising. The question is whether this is healthy profit-taking or the start of something deeper.

The Bigger Picture for 2026

Stepping back, several tailwinds could emerge next year. Easier monetary policy remains the base case for many strategists. Combine that with potentially stabilizing trade relations and continued corporate spending on technology infrastructure, and the setup looks constructive.

In my view, the markets are pricing in a soft landing more confidently now. Growth isn’t booming, but recession fears have receded. That middle ground often proves fertile for equities over time.

Of course, risks remain. Geopolitical tensions, policy shifts, and the pace of AI monetization all bear watching. But the resilience shown Thursday suggests investors are willing to look through near-term noise.

What Should Investors Consider Now?

If there’s one takeaway from this week’s action, it’s the importance of staying diversified. Relying too heavily on a narrow group of winners has worked wonderfully for years, but cracks are appearing.

  1. Review concentration in technology and AI-related holdings
  2. Consider areas that may benefit from lower rates, like small caps or value segments
  3. Keep powder dry for potential volatility around events like tomorrow’s expiration
  4. Maintain a long-term perspective – markets climb walls of worry

Personally, I’ve always believed that discipline beats trying to predict every twist. The market will do what it does, but having a plan helps weather the storms.

As we close out this week and look toward the holidays, the mood feels cautiously optimistic. Thursday’s bounce provided relief, but Friday’s quadruple witching could test that resolve. One thing is certain – there will be more opportunities ahead, for those patient enough to wait for the right setups.

Markets never move in straight lines, and that’s part of what makes them fascinating. Whether you’re an active trader or a long-term investor, staying informed and flexible remains key. Here’s to hoping the coming sessions bring more clarity – and perhaps a continuation of that upward momentum we saw Thursday.


Whatever happens next, one day doesn’t make a trend, but it can certainly influence sentiment. Keep watching those key levels, and remember that sometimes the best move is simply staying invested through the noise.

You can be young without money, but you can't be old without it.
— Tennessee Williams
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Steven Soarez passionately shares his financial expertise to help everyone better understand and master investing. Contact us for collaboration opportunities or sponsored article inquiries.

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