Sat, Oct 3, 2026 · Market

Neutral

Researchers from GovAI, Cambridge CASP and other institutions (including Hinton, Bengio, OpenAI's Pachocki and Anthropic's Jack Clark) published a working paper (September 2026)
They say AI already writes most internal code at frontier companies, and AI systems could automate most or all AI R&D within a few years
A software-driven intelligence explosion could compress years of progress into months, bringing benefits forward substantially but also creating extreme risks from runaway capability gains, loss of control over superhuman systems and erosion of checks and balances
The paper notes that frontier AI companies' capital investment as a share of US GDP already exceeds the Manhattan and Apollo projects combined; estimates of the research-return parameter r remain highly uncertain
Policy recommendations: gain visibility into frontier companies' AI R&D automation; develop tools to steer and constrain an intelligence explosion; prepare society to adapt to its effects

Mixed

Goldman Sachs Prime Brokerage: S&P -0.3% this week, with weak payrolls, ISM manufacturing in line and rising macro pressure from oil, rates and geopolitics; optical networking, momentum longs and data centers outperform, while quantum computing, rare earths and gold miners lag
US fundamental long/short net leverage falls for a third straight week, down 2.2 points to 46.4%, its lowest since April 2025 and near the five-year 2% percentile; 8/11 sectors see net selling, with healthcare receiving the most net buying (short covering)
NDX hits a record high; semiconductors attract demand (solid MU earnings, NVDA adds $150 billion to buybacks), with SOX up 4% for the week, but little appetite to chase
Systematic Russell 2000 exposure is at the 7% percentile, with leveraged-fund shorts at a record; markets price 30bp of cuts by year-end; the desk favors IWM and QQQ upside and traded over $140 million of NDX Dec26 105/115 up-and-out calls
TLT hits a record low after 7 consecutive down sessions; NDX's 12-month forward valuation is below its multiyear average; 'underweight energy' dominates positioning, while integrated energy companies face strong 3Q expectations

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