Institutional Insights: Goldman Sachs SP500 Flows & Positioning Update 13/10/26
EQUITY POSITIONING & DERIVATIVES DESK BRIEFING
THE TAKE: CTA LONG DELEVERAGING VS. Q3 EARNINGS BLACKOUT INFLECTION
Systematic trend-following funds continue to cut aggregate equity exposure sharply. Global CTA equity length is modeled down to ~$43.5B (from $125B one month ago and $67B last week). However, the baseline 1-week forecast indicates an asymmetric tilt toward the US, with +$5.27B of CTA buying projected in a flat tape led by SPX and NDX where all trend signals remain positive.
Simultaneously, corporate demand is approaching a major liquidity inflection point. While buyback desk activity remained subdued last week (~0.8x 2024/2025 ADTV) with 86% of desk volume constrained to programmatic 10b5-1 plans, corporates will progressively exit pre-earnings blackout windows 1–2 days post-release. With major Financials kicking off Q3 reporting, ~10% of S&P 500 constituents are expected to be in their open window by the end of the week, releasing discretionary open-market repurchase (OMR) demand back into the tape.
CTA SYSTEMATIC FLOW MATRIX & SPX TECHNICAL PIVOTS
1-Week Flow Projections:
Flat Tape: Net Sellers of -$3.64B globally (including +$5.27B of net buying into US equities).
Up Tape: Net Buyers of +$23.24B globally (+$6.39B into US equities).
Down Tape: Net Sellers of -$26.07B globally (-$936M out of US equities).
1-Month Flow Projections:
Flat Tape: Net Buyers of +$5.97B globally (+$8.39B into US equities).
Up Tape: Net Buyers of +$136.81B globally (+$24.53B into US equities).
Down Tape: Net Sellers of -$143.84B globally (-$65.79B out of US equities).
Key Systematic S&P 500 Pivot Levels:
Short-Term Pivot: 7,704 (Holding above keeps short-term CTA buying intact)
Medium-Term Pivot: 7,493
Long-Term Pivot: 7,012
PRIME BROKERAGE (PB) & POSITIONING EXTREMES
Between October 2 and October 8, fundamental vs. quantitative strategy alpha diverged significantly:
Performance Tracking: Fundamental L/S fell -0.70% (vs. MSCI World TR +0.78%), hit by negative alpha across both longs and shorts. Systematic L/S gained +0.82%, driven by short-side alpha (+0.55%).
Leverage Breakdown:
Global Book: Gross leverage rose +0.7 pts to 308.7% (60th percentile 1-year); Net leverage fell -1.5 pts to 75.9% (10th percentile 1-year).
US Fundamental L/S: Gross leverage rose +3.8 pts to 213.0% (53rd percentile 1-year); Net leverage ticked up modestly (+0.5 pts) to 46.9% (2nd percentile 1-year).
US L/S Ratio (MV): Fell -0.3% to 1.565, touching a 1st percentile low on a 5-year lookback.
Sector Flow Highlights:
Information Technology: After being the most net-bought US sector in 4 of the past 5 weeks, Info Tech was by far the most net-sold sector (-1.0 SD 1-year), driven by long sales and short additions.
Industrials: Following 5 consecutive weeks of selling, HFs net bought US Industrials at the fastest pace since early January (+1.8 SDs 1-year), led by Aerospace & Defense, Construction & Engineering, Airlines, and Conglomerates.
Biotech De-Grossing Extreme: Health Care experienced risk-unwinding for a 4th straight week. On a trailing 8-week basis, the cumulative percentage de-grossing in Biotech is the largest in over 5 years.
ETF Shorts: US-listed ETF short interest rose +4.4% WoW (+6.2% MoM), led by Large Cap Equity and Tech ETFs, partially offset by short covering in Financials ETFs.
BUYBACK BLACKOUT INFLECTION & BREADTH RECAP
Corporate Buyback Desk Activity: Desk run rates held at 0.8x relative to 2024/2025 YTD average daily traded volume (ADTV). Executions were concentrated in Financials, Health Care, and Energy, with 86% executed via 10b5-1 plans.
Blackout Exit Ramp: As earnings reports ramp up this week, corporate blackout coverage will fall, with ~10% of S&P 500 market cap entering its open window by Friday, expanding discretionary open-market repurchases.
Dot-Com Era Breadth Low: The median S&P 500 constituent continues to trade -16% below its 52-week high, maintaining market breadth at its lowest level since the 2000 Dot-Com Bubble.
Disclaimer: The material provided is for information purposes only and should not be considered as investment advice. The views, information, or opinions expressed in the text belong solely to the author, and not to the author’s employer, organization, committee or other group or individual or company.
Past performance is not indicative of future results.
High Risk Warning: CFDs are complex instruments and come with a high risk of losing money rapidly due to leverage. 68% and 74% of retail investor accounts lose money when trading CFDs with Tickmill UK Ltd and Tickmill Europe Ltd respectively. You should consider whether you understand how CFDs work and whether you can afford to take the high risk of losing your money.
Futures and Options: Trading futures and options on margin carries a high degree of risk and may result in losses exceeding your initial investment. These products are not suitable for all investors. Ensure you fully understand the risks and take appropriate care to manage your risk.
Patrick has been involved in the financial markets for well over a decade as a self-educated professional trader and money manager. Flitting between the roles of market commentator, analyst and mentor, Patrick has improved the technical skills and psychological stance of literally hundreds of traders – coaching them to become savvy market operators!