Conditions for a Q4 short squeeze in U.S. stocks are gradually taking shape: massive unwinding of CTA positions, and $1.3 trillion in share buybacks are poised to launch.

According to WSJ, data from institutions including Goldman Sachs shows that U.S. equity CTA (trend-following quantitative fund) positions have seen sharp adjustments recently. Rubner Research notes that the Z-score of these positions has dropped from +2.35 at the end of August to -0.80, a swing of over 3 standard deviations in a month, indicating that previously accumulated long positions have been significantly liquidated. Meanwhile, U.S. companies have authorized around $1.3 trillion in stock buybacks this year, with some repurchase programs set to restart after October 15 as the Q3 earnings blackout period ends. Historical data shows that buyback activity typically intensifies further in November. On the seasonal front, Rubner data shows that since 1930, the S&P 500 has averaged a 5.6% gain in the fourth quarter of U.S. midterm election years, outperforming the 2.9% average for all years' Q4. In tech stocks, Nasdaq 100 futures are approaching the key resistance level of 31,200 points, while the Philadelphia Semiconductor Index (SOX) has broken through near-term resistance and is closing in on its all-time high. Goldman Sachs projects that bond issuance by hyperscale cloud providers could reach $420 billion by 2027, though their interest expenses as a share of earnings remain low. Morgan Stanley data shows these companies have net leverage of around 0.4x, with cash equal to roughly 132% of their debt. Additionally, Goldman Sachs noted that previously lowered pricing expectations for traditional storage and High Bandwidth Memory (HBM) are starting to recover, while JPMorgan pointed out that semiconductor hardware earnings prospects remain solid, with strong demand for TSMC's AI accelerators. Another key variable for the fourth quarter remains crude oil. Goldman Sachs believes the global crude oil inventory buffer has thinned significantly, and a $100 per barrel oil price is not inconsistent with current supply-demand balance.