The Blue Chair Market Minute

If you’ve spent any time in Mark’s office, you’ve probably heard him talk about his blue chair — an idea borrowed loosely from a certain beach-loving troubadour, that the right seat doesn’t need to move just because the view keeps changing. This week put that idea through a real workout. Tuesday’s midterm elections gave way to Wall Street’s best single day in three months on Wednesday, only for Thursday to hand back nearly all of it and then some, as a sudden wave of worry about artificial-intelligence spending swept through the market’s most popular stocks. Through Thursday’s close, the S&P 500 had fallen back to levels it hadn’t seen since late July — proof that markets can still move a long way in five days, even when nothing about the underlying economy has actually changed. Our blue-chair approach, borrowed from Kenny Chesney: the chair doesn’t move just because the conditions change.

What Actually Happened This Week

Monday was quiet by comparison to what came next. The S&P 500 eased back 0.5% and the Nasdaq slipped 1.1% as investors held their breath heading into Tuesday’s midterm elections, which went favorably for Democrats and left the Dow, S&P, and Nasdaq all roughly flat to modestly higher on the day itself.

Wednesday was the rally. With the election now behind it, Wall Street turned in its best day in three months: the Dow surged 1,569 points, or 3.0%, the S&P 500 gained 1.6%, and the Nasdaq added 1.4%. Investors read the results as removing a source of uncertainty that had been hanging over the market, and the relief showed up across the board.

Then came Thursday, which erased Wednesday’s gains and then some. A sudden, broad retreat in artificial-intelligence-related stocks sent the Dow down 1,833 points, or 3.4%, the S&P 500 down 4.4% — its worst single day since the tariff shock of April 2025 — and the Nasdaq down 5.5%, enough to put it in correction territory, meaning a drop of 10% or more from its recent high. Chipmakers bore the brunt of it: Nvidia fell more than 8% and AMD dropped nearly 16%, while shares of companies that build and finance AI data centers fell even harder. The spark wasn’t one piece of bad news so much as a pile-up of them — this week’s election results raised fresh questions in Washington about whether data-center construction might face more scrutiny, the cost of borrowing to build that construction has crept higher for months, and by several accounts, large institutional investors used the moment to lock in this year’s big gains in the stocks that have led the market higher, in what one strategist bluntly called “shooting the generals.”

It’s worth saying plainly: this wasn’t a market-wide panic. A majority of S&P 500 stocks did fall on Thursday, but a meaningful share — including at least one company that beat earnings expectations and jumped 30% that same day — still rose, a sign the selling was concentrated in the handful of AI-adjacent names that have carried the market’s gains all year, rather than a broad loss of confidence in the economy itself.

Zooming Out: Where This Week Fits

Zoom out past this week’s headlines and the bigger story is still a decent year for stocks, even after Thursday. The S&P 500 began 2026 at 6,858.47. It took its real stumble in the spring, when tariff-driven worries pulled the index down to a 2026 low close of 6,343.72 on March 30. From there it climbed steadily into the fall, reaching a record close of 7,818.93 on October 6. As of Thursday, November 5’s close, the S&P 500 sits at 7,353.73 — up about 7.2% for the year, but roughly 6% below that October record, after giving back a good chunk of its gains in a single session.

Under the Hood

The number that puts Thursday in context is the Philadelphia Semiconductor Index — a basket of chipmaker stocks — which fell 12.25% on the day alone, more than three times the drop in the blue-chip Dow. That gap is the story: this was a sharp, fast repricing of the handful of AI-related names that have done the heaviest lifting in this year’s market gains, not a broad retreat from stocks in general. Even as the S&P 500 and Nasdaq fell hard, a real share of S&P 500 stocks still rose on the day, and the 10-year Treasury yield slipped to 4.84% as investors moved money into bonds for safety rather than fleeing markets altogether. For a diversified, retirement-focused portfolio, that distinction — a few expensive stocks cooling off versus the economy itself souring — matters quite a bit.

Midterms: A Nonpartisan Look at What’s Next

Tuesday’s vote turned out to be one of the larger midterm swings in recent decades. Democrats won unified control of both the U.S. House and the Senate, flipping Senate seats in states like Texas, North Carolina, Maine, Ohio, Kansas, Iowa, and South Carolina — several of which hadn’t elected a Democrat to that seat in decades. The new Congress won’t actually be seated until January 3, 2027, so the practical effects on legislation and policy are still months away, regardless of how markets reacted this week.

What does a Republican White House paired with a Democratic Congress typically mean for markets? Historically, less than the headlines suggest. Research published by Schwab and Wells Fargo ahead of this week’s vote both make the same basic point: divided government tends to make sweeping new legislation harder to pass in either direction, and shifts the action toward regulators, the courts, and recurring fiscal fights — government funding deadlines and the debt ceiling chief among them — rather than major new laws. Schwab’s own data, going back to 1974, shows the S&P 500 has historically performed well in the months following a midterm election regardless of which party won: a mid-single-digit average gain over the following three months, and a double-digit average gain over six months. Both firms are careful to note that history isn’t a guarantee, and this cycle’s narrow Senate math and ongoing spending fights could add some bumps along the way. Either way, this is a data point to watch over the coming months, not a reason to change a long-term plan today.

The AI Story: What It Could Mean Through 2027

Thursday’s sell-off was really a flare-up in a debate that’s been simmering under the market’s surface for most of 2026: is the AI buildout the start of a durable new growth cycle, or the early innings of a bubble? Both camps have real numbers behind them, and it’s worth understanding both before drawing a conclusion.

On the bullish side, the handful of giant technology companies at the center of this story — the ones that run the cloud and build AI data centers — are on pace to spend somewhere in the neighborhood of $780–800 billion combined in 2026, roughly double what they spent in 2025, with Wall Street analysts penciling in something closer to $1.2–1.3 trillion for 2027. Demand for the computing power behind that spending remains genuinely strong: the vacancy rate for leased data center space in North America sits near a rock-bottom 1.4%, and Nvidia’s most recent quarterly revenue more than doubled from a year earlier. Goldman Sachs estimates this spending will amount to under 3% of U.S. economic output even by 2028, well within the range of prior major technology buildouts, and firms like Morgan Stanley still see the S&P 500 grinding higher into 2027 on the back of it.

The skeptics point to a different set of numbers. Some of the largest spenders are now burning cash rather than generating it and have taken on meaningfully more debt to keep building. A growing share of that construction is being financed off these companies’ own balance sheets, through leases, loan guarantees, and increasingly tangled financing arrangements between chipmakers and their biggest customers — one chipmaker alone disclosed more than $100 billion in guarantees tied to its own customers this year — which is exactly the kind of financial engineering that makes a boom harder to unwind cleanly if demand disappoints. One widely cited forecast from Capital Economics expects this bubble to start deflating sometime in 2027, with a meaningful pullback in the S&P 500 attached to that call; others argue the comparison to the dot-com crash doesn’t hold up, since today’s spending is backed by real, profitable businesses rather than speculative startups.

Nobody — including us — can tell you with confidence which camp is right, or exactly when the answer becomes clear. What we can say is that this is likely to remain a source of market volatility through the rest of 2026 and into 2027, with the stocks at the center of it moving more sharply, in both directions, than the broader market around them. That’s precisely the kind of environment where a diversified, blue-chip approach tends to hold up best.

What This Means for Your Blue Chair Plan

• Diversification did its job this week. Chipmakers and AI-adjacent names absorbed most of Thursday’s damage; a portfolio built around a broad mix of blue-chip and diversified holdings — rather than concentrated bets on a handful of AI-related stocks — felt a much smaller version of that drop.
• One sharp day doesn’t rewrite a decades-long plan. A 4.4% drop is uncomfortable to watch, but retirement plans are built to ride out years like 2026, which has already included both a 3% rally and a 4%-plus sell-off in the same week.
• If you’re drawing income, this is exactly why we hold cash and bonds alongside stocks. Having a cushion of safer assets set aside means a week like this doesn’t force a decision about selling stocks at an inconvenient moment.
• Expect the AI debate to keep running. Whether this week was a healthy gut-check or the start of something bigger is likely to stay a live question for a while — that’s a market story worth watching, not a cue to act on your own plan.

Our blue-chair approach, borrowed from Kenny Chesney: the chair doesn’t move just because the conditions change.

Looking Ahead to Next Week

Markets still have this morning’s jobs report to digest before this week is fully in the books, and then attention turns to Tuesday, November 10’s Consumer Price Index report — the next read on inflation, and a data point the Federal Reserve will be watching closely. Earnings season is winding down but hasn’t finished, and odds are good that the debate over whether this week’s AI stock stumble was a healthy pause or the start of something bigger keeps running for a while yet. We wouldn’t be surprised to see more day-to-day swings in the names at the center of this week’s story, even if the broader market settles down.