Big Tech Lost Nearly $800 Billion. The Average Stock Barely Noticed

Alphabet and Tesla told the market what the AI build actually costs, and the seven largest companies in America shed close to $800 billion in a single session. Underneath that, eight of eleven sectors finished the week higher and the equal-weight index closed green. The even-weight construction owned the half of the market that worked.

Brad Roth
July 26, 2026

TL;DR

• Alphabet guided capital spending to roughly $200 billion and posted its first negative quarterly free cash flow since going public. Tesla's CEO called 2026 a "massive capex year." The seven largest US companies lost close to $800 billion of market value on Thursday.

• The damage stayed inside the mega-caps. Eight of eleven sectors rose on the week and the equal-weight S&P finished slightly higher, while the cap-weighted index still fell 0.6% because a handful of names dominate it.

• Brent touched $100 midweek before easing, and the ten-year yield hit its highest level since January 2025. The Fed meets Wednesday and the quarter's growth and inflation data land Thursday.

Week in Review

Wednesday evening did it. Alphabet raised its capital spending plan to about $200 billion for the year, up from $190 billion. It also reported the first negative quarterly free cash flow since the company went public. Tesla's call followed an hour later, with Elon Musk calling 2026 a "massive capex year" and saying the company should spend as fast as it can. Neither of those was a bad quarter. Both were a bill.

Thursday the market sent it back. The seven largest US companies gave up close to $800 billion of market value in one session. Tesla fell 13% on the day and closed the week down almost 18%. Alphabet lost nearly 8% on the week, Amazon 6%. Intel beat on the quarter and dropped 8% anyway Friday.

Then there's the part that didn't make the headlines.

• S&P 500: 7,411.98 close, down 0.6% on the week.

• Nasdaq Composite: 24,975.82, down 2.1%, the weakest major for a second straight week.

• Dow Jones Industrial Average: 51,947.25, down 0.4%.

• Russell 2000: 2,930, down about 1%.

• Equal-weight S&P 500: finished the week slightly higher, green while the cap-weighted version fell.

• 10-year Treasury yield: near 4.69%, its highest since January 2025.

• VIX: 18.58, down from 19 a week ago.

• WTI crude: near $90, up roughly $8 on the week.

• Brent crude: above $98 after tankers were struck off Saudi Arabia, touched $100, then settled below $96.

• Gold: $4,070, up about 1%.

• Bitcoin: near $64,100, roughly flat.

Eight of the eleven S&P sectors rose. Energy led at 3.4%, Utilities added 2.5%, Industrials 1.8%, Materials 1.4%, Real Estate 1.2%, Healthcare 0.9%. Technology and Financials finished flat. The three losers were Consumer Discretionary at 5.2%, Communication Services at 3.9%, and Consumer Staples at 1.2%. Tesla, Amazon, and Alphabet live in the first two.

A new tariff round covering 99.4% of US imports took effect at rates of 10% to 12.5%. Business activity still expanded at its fastest pace in eight months.

Allocation Changes

Quiet on all three systems, and quiet was the right side of this week.

THOR Index Rotation stayed near a third each across the three major benchmarks, with cash around 1%. The blue chips gave up 0.4% and the growth benchmark 2.1%. An equal split across both compressed that gap instead of expressing it, which is the entire reason the split exists.

THOR Low Volatility kept its seven real-economy sectors at roughly even weight, and six of the seven finished the week higher. Utilities at 13.8%, Industrials at 14.3%, Materials at 13.3%, and Real Estate at 14.1% all gained ground while the headline index fell. Financials sat at 14.5%. Technology stayed capped near a sixth of the mix at 15.3%, roughly half what it runs in the cap-weighted index. That cap is the difference between a scratch and a real dent in a week like this one. Consumer Discretionary at 12.3% is the lightest of the seven and the one that cost something. Energy, Healthcare, and Consumer Staples stayed out. Cash and T-bills near 2.4%.

One more thing worth saying plainly. Communication Services isn't in this universe at all. The sector that houses Alphabet fell 3.9%, and the even-weight build never had a share of it.

The actively managed strategy kept its full roster as well, with only ordinary drift in the weights.

The Bigger Picture

The AI question changed shape this week. For two years it was a demand question, and the answer was always yes. Now it's a cash flow question. The largest hyperscalers are on track to spend close to $800 billion on capital projects this year, up more than 80% from last year. That spending now runs at roughly three quarters of their operating cash flow. The last time that ratio showed up was the late 1990s. Alphabet's negative free cash flow quarter is what the ratio looks like when it arrives. The market didn't reject growth on Thursday. It repriced what growth costs.

Here's the mechanical part most investors miss. The ten largest US stocks are about 35% of the market, up from 18% a decade ago. When those names de-rate 5% in an afternoon, a cap-weighted index has to fall even if eight of eleven sectors are climbing. That's not a market selloff. That's index arithmetic, and it's the reason the same week produced a red S&P and a green equal-weight S&P. Anyone who owns the benchmark for diversification owned a concentrated growth bet last week and found out.

Underneath, the real economy did fine. Financials sit at a full even weight with rising rates widening net interest margins and the group still trading at a discount to its own history. Industrials were the strongest sector of the quarter and added another 1.8%. Real Estate tracks Industrials closely right now, which makes it the position most exposed if the ten-year keeps climbing from 4.69%. Utilities picked up a defensive bid and rose 2.5%, though a firm long end is a genuine headwind for a group valued on yield.

What stays out is a discipline, not an oversight. Energy held at zero through a second straight week of a crude rally. A premium built on shipping lanes and headlines can reverse on a headline just as fast. Consumer Discretionary is the position under real pressure. The sector runs a 0.84 correlation to the index, so it offers little diversification, retail results have been mixed, and credit card delinquencies keep rising while consumers trade down. It's the lightest of the seven for a reason.

THOR Risk Gauge

Bullish. Volatility fell rather than spiked through a week that took nearly $800 billion out of the largest names, so the damage got priced as a valuation event and not a systemic one. Eight of eleven sectors rose, business activity ran at an eight-month high, and both systematic strategies went into the weekend near fully invested across the parts of the market that gained ground. The offsets are real. Crude sits near $90 after Brent touched $100 midweek, the ten-year is at levels last seen in January 2025, a fresh tariff round is live across nearly every import, and a Fed meeting plus the quarter's growth and inflation reports all land inside four days.

Signal Watch

THOR Index Rotation — As of 7/24/26

Three near-equal benchmark stakes did their job in a week where the spread between the strongest and weakest major ran nearly two full points. Owning the blue chips and the growth index at the same size turns that spread into a wash rather than a drawdown. Cash stays near 1%.

THOR Low Volatility — As of 7/24/26

Seven sectors at roughly even weight, and six of them finished the week green. Financials hold a full position on widening margins and a valuation still below the sector's own history, while Industrials extended the strongest run of the quarter. Technology at 15.3% is a cap, not a conviction call, and that cap is why a mega-cap de-rating landed as a glancing blow here.

THOR AdaptiveRisk Dynamic — As of 7/24/26

The mix runs near 70% equity, roughly 13% fixed income, about 9% in specialty and currency, and close to 7% in alternatives. Energy is now the joint-largest position, which paid in a week crude added $8 a barrel. The semiconductor and mega-cap names hold the AI exposure that absorbed Thursday's hit, offset by a long-dated Treasury leg and a short position on the yen.

Weekend Reading

Podcast: Eva Ados of ERShares joins this week's Behind the Ticker. Ados is Partner, COO, and Chief Investment Strategist at a firm built on Dr. Joel Schulman's research into what makes entrepreneurial companies compound, the same framework that flagged Nvidia at $5 in 2005. The episode is titled "Turning Down $1 Billion in Flows to Protect Retail Investors," and the story behind that decision is worth 28 minutes. Listen on Spotify

A Slower AI Payoff Would Be Everyone's Problem — Torsten Slok, Apollo Daily Spark, July 9
The framework for exactly what broke Thursday. Slok shows consensus expects hyperscaler free cash flow to more than double. He argues a delay in AI monetization wouldn't stay a sector problem, it would risk tipping the economy into recession.

From chokepoint to crisis: The Strait of Hormuz and global oil markets — Samantha Gross and Ryan Beane, Brookings, June 8
Why being the world's largest oil producer doesn't insulate the US from this. Oil is fungible and priced globally, so a strait disruption hits American prices the same as everyone else's, and there's no quick policy fix.

The Strait of Hormuz in 8 Charts — CSIS, April 22
The data behind the headlines. Eight charts on tanker traffic, rerouted trade flows, and which economies actually absorb the damage when a quarter of global oil has to find another way out.

Quote of the Week

"The riskiest thing in the world is the widespread belief that there's no risk."
— Howard Marks, "Risk Revisited," Oaktree Capital memo, September 2014

The seven names that lost $800 billion Thursday were the most widely owned assets on earth going into the week. Risk was sitting in the consensus position, which is usually where it sits.

The desk behind this letter runs deeper. THOR Signals gives advisers a systematic read on any ticker, short, medium, and long term, with the exact level where each read changes, plus a daily research note and white-label reports for client meetings. Start at thorsignals.com

Brad Roth / CIO, THOR Financial Technologies

This content reflects the opinions, analyses, and research of THOR Financial Technologies as of the date published. It is provided for informational and educational purposes only and does not constitute investment advice and should not be relied upon as the basis for any investment decision. Past performance doesn't guarantee future results, and all investments involve risk. For more information, please go to: thorft.com