Two shocks hit at once on Thursday and the index finally moved with them. Doubts over whether the hyperscalers' AI spending will pay off, crystallised by Alphabet's raised 2026 capital-spending guide of up to 205 billion dollars, ran straight into Brent crude above 100 dollars for the first time since May. The S&P 500 fell 1.21% to 7,408.30, its worst session in a month, and the VIX jumped 12.4% back to 18.70.
This was the opposite of the calm, split tape of a day earlier. The megacaps did not cancel each other out this time, they fell together. Tesla plunged 14.52% after a profit miss and a heavier AI-spend guide, Alphabet dropped 7.13%, Amazon 4.57%, Meta 3.36%, Microsoft 2.24% and Nvidia 1.56%. A gauge of the Magnificent 7 shed roughly 797 billion dollars of value in a single session.
The tell for options traders sits in the correlation reading. Implied correlation across S&P 500 names, COR3M, jumped 22.8% to 9.26 after collapsing to single digits earlier in the week. When a shared macro shock arrives, names stop trading on their own stories and start moving together, and a down day in the index is what that produces.
MARKET REGIME: NEUTRAL / CHOP | VIX 18.70 | TERM STRUCTURE: CONTANGO | SKEW: ELEVATED (145.95) | FRONT-MONTH VIX FUTURES: 19.65
Key findings
- Correlation snapped back. Implied correlation COR3M jumped 22.8% to 9.26 while the dispersion index DSPX eased to 45.78 (-3.1%). In our view the options market spent the week pricing names to move apart, and Thursday's twin shock forced them back together, which is why an S&P 500 down 1.21% replaced the flat tape of a day earlier. A shared macro catalyst may do to a quiet index what single-name news could not.
- The pop is all at the front. The VIX rose 12.4% to 18.70 while the one-day measure VIX1D leapt 29.2% to 14.71 and VIX9D climbed 22.0% to 18.15, yet VIX1Y barely moved at 23.76 (+1.5%) and the term structure stayed in contango with front-month VIX futures at 19.65. In our assessment the market is paying up for the next few sessions, next week's FOMC included, and treating this as an event spike rather than a change of regime.
- The shock was priced in two places at once. Oil volatility (OVX 68.97) held near 3.7 times the VIX as Brent cleared 100 dollars, the MOVE index of Treasury volatility rose 5.0% to 80.08 with the 10-year yield at a fresh 2026 high, and equity volatility joined them for once. In our view the day's stress was genuinely broad, and a trader watching only the VIX would still have caught it this time.
Vol surface data: Saxo, Bloomberg, CBOE, as of 24 July 2026, approx. 06:00 CET. Past performance is not indicative of future results.
Headline driver
A twin shock reset the risk mood: renewed doubts over hyperscaler AI returns after Alphabet's raised capex guide, and Brent crude topping 100 dollars on the widening US-Iran conflict, which together drove the worst S&P 500 session in a month and put a Fed hike back in view, with money markets now pricing roughly a 35% chance at next week's FOMC. Full macro rundown in Saxo's Market Quick Take - AI doubts and $100 oil rattle markets, 24 July 2026.
Market snapshot, Thursday 24 July 2026
- US (Thursday 23 July close): S&P 500 7,408.30, down 1.21%, its worst session in a month. Nasdaq 100 28,454.81, down 1.87%. Dow Jones 51,717.16, down 0.97%. IWM, the iShares Russell 2000 ETF, 292.09, down 0.58% and the relative outperformer. Megacaps fell together, with Tesla down 14.52% on a profit miss and heavier AI capex, Alphabet down 7.13%, Amazon down 4.57%, Meta down 3.36%, Microsoft down 2.24% and Nvidia down 1.56%. Against the tide, Intel rose about 4% after guiding third-quarter revenue well above consensus.
- Rotation under the surface: defensives and cyclicals held up while growth led the losses. Healthcare (XLV) rose 1.26%, industrials (XLI) 1.73% and utilities (XLU) 0.57%, against consumer discretionary (XLY) down 4.61% and communication services (XLC) down 3.50%.
- Europe and Asia: the Stoxx 600 fell 1.18% to 639.27, its biggest drop since 8 July, with banks leading and Nestle down a record 8.0%; the DAX lost 1.56% and the CAC 40 1.64%. The selloff carried into Asia this morning, with the KOSPI down 5.94% as Korean chipmakers reversed, and the Hang Seng down 1.27%.
- Metals, energy and crypto: Brent crude closed above 100 dollars for the first time since May, up about 7% to 100.66, with WTI near 92 dollars, on Red Sea tanker attacks and the US-Iran conflict. Gold slipped to around 4,031 dollars as real yields rose, with GLD down 2.00%, silver ETF SLV down 3.45% and miners GDX down 2.16%. Bitcoin held near 65,500 dollars, down about 0.7%, with ether near 1,880 dollars. Costs and charges apply to ETF trades; see Saxo pricing for full details.
- Rates and FX: the US 10-year yield pressed to a fresh 2026 high near 4.71%, a fourth straight day higher, with the 2-year at 4.36% and the 30-year at 5.17%. USDJPY held near 163.80, leaving the yen at multi-decade lows into the 31 July Bank of Japan meeting, while EURUSD sat near 1.1382 after the ECB left rates unchanged.
- Volatility complex: VIX 18.70, VIX1D 14.71, VIX9D 18.15, VIX3M 20.60, front-month VIX futures 19.65, second-month 20.29, VVIX 102.17, SKEW 145.95, COR3M 9.26, DSPX 45.78, MOVE 80.08, VXN 28.06, OVX 68.97, GVZ 25.14.
- Market regime (rules based read): neutral / chop. VIX 18.70, 20-day realised volatility 10.2% and falling, S&P 500 0.85% below its 50-day moving average, with the underlying signals mixed rather than aligned.
Source: Saxo, Bloomberg, CBOE, 24 July 2026. Past performance is not indicative of future results.
Options flow sentiment
Based on end-of-day 23 July, yesterday's positioning and not today's price action.
- Single-name flow: was almost entirely a Tesla put story the day after its earnings print, with heavy deep-in-the-money put premium, but the aggressor side inside it was genuinely split between bought and sold at the same strikes and expiries, which in our assessment reads as post-earnings position adjustment, spreads and rolls rather than a fresh directional bet. The one unambiguous directional print on the tape was a bought long-dated S&P 500 index put, a hedge rather than a short.
- Sector and ETF flow: left its cleanest footprint in outright downside protection, with the semiconductor ETFs SMH and SOXX both drawing bought out-of-the-money puts into the August expiries, alongside that bought long-dated index put. In our view portfolio positioning looked defensive on semis and on the index into next week's events.
Volatility surface - 24 July 2026, approx. 06:00 CET
VIX term structure
- VIX spot 18.70 (+12.4%), back above 18 as the twin shock hit
- VIX1D 14.71 (+29.2%) · VIX9D 18.15 (+22.0%), the sharpest jumps on the surface off a low base
- VIX3M 20.60 · VIX6M 22.48 · VIX1Y 23.76, all above spot, so the curve stays upward sloping from the front
VIX futures
- Front-month VIX futures 19.65, a premium of 0.95 to spot, as the cash index sits below the future
- Second-month VIX futures 20.29, front-to-second ratio at 0.970, leaving the curve in contango, where later-dated contracts trade above nearer ones
Skew and correlation
- CBOE SKEW 145.95 (-2.8%), still in its elevated zone, meaning investors keep paying up for out-of-the-money downside protection even as spot volatility rises
- COR3M 9.26 (+22.8%), the 3-month implied correlation index, the clearest single move on the surface as index names snapped back together
- DSPX 45.78 (-3.1%), the S&P 500 dispersion index, easing from the top of its recent range as correlation rose
Other volatility measures
- VVIX 102.17 (+6.9%), the volatility of the VIX itself, back above 100 · MOVE 80.08 (+5.0%), the Treasury volatility gauge, higher as yields pushed to a fresh high
- VXN 28.06, the Nasdaq 100 volatility index, at a 61% premium to VIX
- OVX 68.97 (+5.6%), crude oil volatility, at roughly 3.7 times the level of VIX · GVZ 25.14 (+4.7%), gold volatility
Source: Saxo, Bloomberg, CBOE, 24 July 2026. Past performance is not indicative of future results.
What the market is pricing
- The session is priced for a wider move. S&P 500 options imply a move of roughly 51 points, about 0.69%, over today's cash session, with VIX1D at 14.71. This figure is derived from at-the-money option pricing and is not a forecast. Options carry a high risk of rapid loss and are not suitable for every investor.
- Next week carries the real premium. S&P 500 options imply a move of roughly 140 points, about 1.88%, into next Friday's expiry, the window that contains the FOMC decision and the heart of megacap earnings. This number is derived from option-implied pricing rather than a directional view. See Saxo pricing for costs and applicable charges.
- Correlation is priced to stay up. COR3M at 9.26, up 22.8%, with DSPX easing to 45.78, prices a market that expects index names to move together again rather than on their own catalysts. In our view that is the signature of a macro-driven tape, and it may persist while oil and the Fed sit in the foreground.
- The curve calls it an event, not a regime. VIX at 18.70 with front-month futures at 19.65 and VIX3M at 20.60, against a near-flat VIX1Y at 23.76, shows the market pricing a short, event-shaped spike rather than a lasting change. In our assessment that could reverse quickly if next week's catalysts surprise. Future outcomes are uncertain and may result in losses.
Today's catalysts and the week ahead
The near-term calendar is lighter than next week's. From today the US began collecting new import duties of 10% to 12.5% on around 60 countries, and after the US open Exxon Mobil, American Express and Verizon report earnings, with US futures pointing modestly lower this morning.
The heavy events sit next week. The FOMC decision on 28 to 29 July is now treated as a live meeting after the oil-driven jump in hike odds, and it lands alongside megacap earnings, Microsoft and Meta on 29 July and Apple and Amazon on 30 July. The Bank of Japan meets 31 July and the US July employment report is due 1 August.
When correlation comes back
A day earlier the index sat almost still while the biggest stocks travelled several percent in opposite directions, and we put that down to implied correlation deep in single digits. Thursday was the same mechanism running in reverse, driven this time by a shared catalyst rather than single-name news.
- A shared shock replaced single-name news. The catalyst was no longer one company's story but two macro ones, AI-return doubts and 100 dollar oil, and COR3M jumped 22.8% to 9.26 as the market repriced index names to move together.
- Correlation turns offsets into a drop. Tesla fell 14.52%, Alphabet 7.13% and the rest of the megacaps followed rather than offset one another, so the S&P 500 dropped 1.21% instead of netting to flat. When correlation rises, the index stops absorbing offsetting moves and starts adding them up.
- The stress showed up across assets. Oil volatility near 3.7 times the VIX, Treasury volatility up 5.0% at a fresh yield high, and a VIX back above 18 all pointed the same way for once. In our view the week's earlier calm rested on names moving apart, and that support may weaken while oil and a live Fed decision sit in front of the market. Future outcomes are uncertain and may result in losses. Options carry a high risk of rapid loss and are not suitable for every investor. See Saxo pricing for costs and applicable charges.
Source: Saxo, Bloomberg, CBOE, 24 July 2026. Past performance is not indicative of future results.
Conclusion
In our assessment Thursday mattered less for the size of the drop than for what drove it. A 1.21% fall in the S&P 500 is not large on its own, but a 22.8% jump in COR3M, a VIX back above 18 and volatility rising in oil and rates at the same time suggest the market has switched from trading single-name stories to trading one macro story.
A trader reading the surface today may want to note that the near-term curve, not the back end, is carrying the strain, and that the correlation reset means index risk and single-name risk have converged again heading into an event-heavy week. Future outcomes are uncertain and may result in losses, and options carry a high risk of rapid loss that is not suitable for every investor. See Saxo pricing for costs and applicable charges. Past performance is not indicative of future results.
Important note: The strategies and examples provided in this article are purely for educational purposes. They are intended to assist in shaping your thought process and should not be replicated or implemented without careful consideration. Every investor or trader must conduct their own due diligence and take into account their unique financial situation, risk tolerance, and investment objectives before making any decisions. Remember, investing in the stock market carries risk, and it's crucial to make informed decisions.
