Goldman Sachs: Nasdaq Down 9% from Highs, European Natural Gas Breaks €100, Central Banks Become the Only Stabilizer
nashnova research
Goldman FICC strategist Rikin Shah warns that an equity selloff and an energy price shock are squeezing rates from both sides — the only force holding volatility down is the Fed's and ECB's decision not to hike, and that shield is far from solid.
Inflation is running hot — why aren't central banks hiking?
Every inflation headwind has materialised over the past six weeks: Brent crude up $9/bbl, Dutch TTF gas up €16/MWh, eurozone Q1 inflation expectations at 4.5%, and US September core inflation described by Shah as "unequivocally strong."
Yet the Fed (10-to-2 vote, with governors Cook and Hammack dissenting in favour of a hike) and the ECB both chose to hold.
This means → central banks are watching the other side of the ledger: the Nasdaq 100 is down nearly 9% from its early-October high, US high-yield CDX spreads have widened 20 bp, and the France–Germany bond spread has blown out by roughly 60 bp — these directional moves in financial conditions have entered the central-bank reaction function.
In plain terms = inflation data says "hike," but equities and credit say "don't move." Central banks sided with the latter.
Are financial conditions actually tight?
Goldman's own gauge shows the US Financial Conditions Index (FCI) has tightened only about 35 bp this year, driven mostly by long-end rates and the dollar; equities and credit remain a net easing force year-to-date.
Europe is roughly flat — barely any shift at all.
This means → central banks care less about the *level* of conditions and more about the direction and tail risk. Shah's own words: "If we are past peak growth, any acceleration in the equity and credit downturn makes tail risk very serious."
How is the bond market reading the oil rally?
For most of 2026, AI capex (proxied by the Nasdaq) and energy prices pushed rates higher together — both forces pointed the same way.
In October that link broke: the daily correlation between 10-year Treasury moves and the Nasdaq 100 flipped to +0.60, while the correlation with Brent crude flipped to −0.28.
This means → the bond market is now reading higher oil as a growth threat, not an inflation signal. The clearest proof: on the same day Brent hit a six-month high of $118/bbl, the 10-year Treasury yield fell to a six-week low below 4.9%.
In plain terms = before: oil up → rates up (inflation fear). Now: oil up → rates down (recession fear). The market's dominant worry has flipped from inflation to growth.
Why does European rates volatility look so calm?
Europe has greater exposure to the Middle East and less to AI. The result: in October the correlation between 10-year EUR swap rates and each of the Nasdaq, Brent, and TTF gas was near zero.
One-month realised volatility on the 10-year EUR swap sat at just 57 bp.
This reflects offsetting forces pulling in every direction — no single driver dominates. It looks calm on the surface; underneath, it is a stalemate.
What is Goldman's bottom line?
Shah closes the report bluntly: "We are not in a stable equilibrium."
Uncertainty around equities and the AI narrative is rising, energy risk premia are elevated, and rates are caught between two opposing forces.
He identifies the "source of near-term calm" as central banks — "They are doing their best to suppress volatility. Good luck."
This means → with the Fed pausing on a split vote and ECB President Lagarde announcing an early departure, that "good luck" carries weight well beyond its face value: no one knows how long central banks can hold the line.
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