Demand for put protection hits a four-year high; Goldman traders say professional investors are preparing for "some kind of breakout."

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Beneath the calm surface of the market, professional investors are buying downside protection with rare intensity. The latest data from Goldman Sachs shows that, although the S&P 500 has traded in one of the narrowest ranges in history over the past two months, institutional trading behaviors resemble those seen when the VIX volatility index hits an extreme of 35—yet the VIX is only at 19. This unusual divergence suggests the market may soon see a directional breakout.

Goldman Sachs trader Brian Garrett noted in a weekend report, "The latest institutional activity—including selling, shorting, reducing total and net exposures—shows defensiveness 'as if VIX were at 35'." The one-month S&P 500 option skew has risen to its steepest level in four years, driven by the expensive price of downside puts and the cheapness of upside calls.

Data shows long-term asset managers had net sales of $4 billion this week and $10 billion so far this month, marking one of the biggest monthly selling tendencies in four years. Hedge funds, via prime broker channels, have net sold U.S. stocks in three of the past four weeks, with technology, media, and telecom sectors accounting for 70% of the net selling. Global equities recorded their largest net sell since April 2025 last week, mainly driven by short trades.

The urgency of this defensive positioning stems from the proximity of key technical levels. Goldman Sachs says, gamma turns negative on slight declines, coinciding exactly with the trigger threshold of the bank's CTA momentum strategy. Garrett emphasized this is "extremely important," meaning the market may be about to reflect the wild volatility that has been ongoing at the individual stock level.

Index calm masks stock-level turbulence

The market is showing extreme divergence. Over the past two months, the S&P 500’s high-low closing range was just 3.7%, less than half the 20-year median of 8.6%, marking one of the narrowest two-month ranges in history.

But the situation is very different at the stock level. Goldman Sachs data shows the average realized volatility of individual stocks versus the index volatility has just hit a record high; average stock volatility is about 25 percentage points higher than the index. Garrett said that while "boring" doesn’t adequately describe the index’s moves the last two months, "investors in the trenches" are experiencing the exact opposite.

This divergence is alerting professional investors. Goldman Sachs says, investors are steadily reducing risk, "feeling like they're preparing for the index to finally reflect the signals released by individual stocks"—that "something has to give."

Institutional investors accelerate withdrawal

Prime broker data reveals a sharp shift in institutional behavior. U.S. equities were net sold this week, and three out of the past four weeks also saw net selling. Technology, media, and telecoms accounted for 70% of net sales; sector divergence is clear: funds dumped software and internet stocks, but bought semiconductors and storage chip stocks.

In a week when "nothing happened," global equities saw the largest net sales since last April, driven by short selling with relatively mild long inflows. Total trading activity continues to rise, almost entirely driven by short selling. Seven of 11 sectors saw net sales; in dollar terms, information technology, communication services, finance, and materials led declines, while energy and healthcare were the most heavily net bought sectors.

Long-term asset managers’ selling was particularly marked. This group net sold $4 billion this week and $10 billion so far this month. Garrett notes this is one of the biggest monthly sell tendencies by asset managers and pure long-only institutions in four years—other big sell months were August 2022 ($18 billion), March 2024 ($14 billion), and March 2025 ($22 billion).

Options market turns defensive

The derivatives market is flashing a clear defensive sign. The S&P 500 one-month option skew trades at its steepest level in four years, reflecting the expensive price of downside puts and the cheapness of upside calls. A Goldman trading desk source said:

"We still haven’t seen any demand for S&P 500 calls on the trading floor."

This is consistent with how professional investors are positioning their delta holdings—the options market is turning more defensive. Mega-cap tech stocks are no longer "surging," and retail investors are showing signs of fatigue in buying upside calls. Over the past month, call option volume for mega-cap stocks has dropped to 2017 levels. Garrett comments:

"When options stop working, chasing calls isn’t fun anymore (investors experience the true meaning of 'time value decay')."

The futures market is also showing signs of fatigue. The Goldman Sachs futures team notes the previous rush to cyclical exposure is waning, Russell index delta positions are being unwound—these positions were the hottest trade this year—prompting the team to favor tactical short-term outperformance for the Nasdaq 100.

Key technical levels are about to be tested

Gamma dynamics represent the most direct market risk. Garrett stresses, as the market tests the lower bound of this extremely narrow range, gamma turns negative in the "smallest of sell-offs," which happens to coincide with the Goldman CTA momentum strategy threshold. He writes this is "extremely important."

A negative gamma environment means that, as the market falls, market makers and derivatives dealers need to sell more stocks to hedge their positions, increasing downside pressure. Gamma positioning is evolving as volatility "yield" products proliferate, and its impact has surpassed that of the S&P 500 expiry.

The market is about to face a critical test. Nvidia will report earnings after the close on Wednesday, which could act as the catalyst for a directional market breakout.

Risk warning and disclaimerThe market is risky, and investors should exercise caution. This article does not constitute personal investment advice and does not take into account the specific investment objectives, financial situation, or needs of individual users. Users should consider whether any opinions, views, or conclusions in this article are suitable for their particular circumstances. Investments made on this basis are at your own risk. ```