Market at "Critical Breakout Point"! Goldman Sachs Reveals: Institutional Selling and Shorting of U.S. Stocks This Week Reached "Historic Levels"

Unprecedented institutional selling is pushing the U.S. stock market toward a dangerous tipping point — potentially triggering a short squeeze if geopolitical tensions ease, or deepening a decline if tensions continue to escalate.

Goldman Sachs futures trading data shows that from March 3 to 10, asset management firms net sold $36.2 billion worth of S&P 500 futures, marking the largest weekly reduction in over a decade based on nominal value. Robert Quinn of Goldman Sachs directly attributes this rapid withdrawal to the Iran war and the accompanying surge in oil prices, calling it the immediate catalyst for the institutional exodus.

Meanwhile, Goldman Sachs ETF trading data indicates that on Thursday, short positions in U.S.-listed ETFs increased by 10% in a single day — the second-largest single-day increase in Goldman Sachs history — with overall macro product short exposure reaching its highest level since September 2022. The simultaneous futures sell-off and ETF shorting highlight the market’s extreme pressure.

However, the ultimate outcome of this game largely depends on the evolution of geopolitical developments. John Flood, head of U.S. trading at Goldman Sachs, notes that investors still hope the broad uncertainty triggered by the Iran conflict will dissipate quickly, but the window for this expectation is narrowing — if no positive progress occurs within the next two weeks, “from a stock index perspective, we will face problems.”

Net institutional sales of $36.2 billion have led to the biggest weekly sell-off in a decade for the S&P futures.

Goldman Sachs futures data reveals a historic shift in institutional behavior this week. During the week of March 3 to 10, net sales of S&P 500 futures by asset managers reached $36.2 billion, surpassing any weekly sell-off in over ten years based on nominal value.

Quinn highlights the core driver of this rapid retreat: the ongoing escalation of the Iran war and the synchronized spike in oil prices created a resonance that catalyzed swift capital outflows. Notably, while institutions massively sold futures, other non-dealer market participants showed mixed attitudes; leveraged funds remained relatively resilient amid continued volatility in commodities, without taking similarly aggressive directional bets.

ETF short positions also hit record highs, with short exposure rising to a three-year peak.

In the same week as the historic futures sell-off, Goldman Sachs ETF trading recorded startling data: on Thursday, U.S.-listed ETF short positions in Goldman’s prime brokerage accounts surged by 10% in a single day — the second-largest single-day increase ever, after a 16% jump on April 2, 2025.

This resonance between futures and ETF shorts has pushed macro product short exposure to its highest since September 2022. This comparison is significant — April 2025 was one of the most intense days of policy shocks in recent market history, and current ETF shorting intensity is approaching that level, reflecting the market’s suppressed sentiment.

Short squeeze and crash at the brink

Despite the unprecedented scale of this deleveraging, Goldman Sachs warns clients that institutional net long positions remain at the 71st percentile over the past two years, not fully cleared out. This structural feature indicates the market is in a highly sensitive balance, with no final directional consensus.

Flood points out that large-scale de-risking (benefiting from the synchronized ETF shorting surge, with overall leverage not fully contracted) combined with rapidly deteriorating sentiment — which nearly mirrors institutional S&P futures positions — means that just one trigger could spark a fierce short squeeze, creating a perfect storm where previously aggressive “weak hands” rush to buy back, exacerbating the volatility.

Both outcomes — a sharp short squeeze or a market crash — ultimately hinge on the trajectory of the Iran conflict. Flood states that investors still hope the broad uncertainty caused by the conflict will dissipate quickly. Once signs of easing appear, the massive accumulated short positions could ignite a market surge; but the longer the delay, the greater the vulnerability, eventually crossing a critical threshold and triggering an unavoidable downward shock.

“Market participants are hoping for some resolution signals in the next two weeks,” Flood warns:

“But if this continues without any positive developments, from a stock index perspective, we will face problems.”