S&P 500 Earnings Surge to Records Amid Bond Market Warnings and AI Disruption Bets

Key Takeaways

1. S&P 500 Q2 earnings jumped 47% YoY with record 16.7% margins, but the bond market logged its longest losing streak ever and 30-year yields hit 17-year highs — a rare market divergence.
2. Japan's long-term investing problems are backed by dramatic data: corporate dominance collapsed, demographics are worsening, and the debt load remains an unresolved time bomb.
3. High Sharpe ratios and levered portfolios are far less sustainable than marketing claims suggest, according to Meb Faber's data and Raoul Pal's trading wisdom.
4. Base raised $1B at a $13B valuation for its home battery, reinforcing momentum in energy storage.
5. AI and robotics are poised to disrupt the gig economy, while open-source models are closing the gap with frontier labs.

1. Market & Macro Crosscurrents

1. S&P 500 Q2 earnings grew 47% YoY, the fastest since Q2 2021 (excluding post-recession rebounds), driven by big tech EPS expansion; Q2 profit margins rose to a record 16.7%. Jeremy Grantham's margin mean-reversion warning adds a cautionary note. — via 1 2
2. US bonds have now fallen for six straight years, the longest streak on record, and the 30-year yield ended the month at 5.27%, the highest since July 2007 — a signal that challenges low-inflation narratives. — via 1 2
3. Fiscal deterioration continues: the national debt rose $3.6T in 13 months (over $9B/day), undermining claims of balanced budgeting; the issue is spending, not revenue. — via 1 2 3

2. Japan's Long-Term Investment Lessons

1. Ben Carlson argues the 1980s Japan was the largest financial asset bubble in history, directly addressing the "just look at Japan" pushback against long-term investing. — via 1
2. Japan's corporate decline is stark: Fortune 500 Japanese companies dropped from 149 in 1995 to 38, GDP per capita has grown only ~30% since the 1990s, and the population is projected to shrink 40% by 2100 with the working-age share halving. — via 1
3. Japan's debt overhang remains severe: debt/GDP around 250%, the central bank holds over half of government bonds, and the eventual resolution may be inflation; the 2024 rate hike already triggered global market volatility in yen carry trades. — via 1

3. Risk, Leverage, and Performance Persistence

1. High Sharpe ratios are rarely sustainable: of 8,000+ funds with 5+ years history and annualized vol >3%, only 8 had Sharpe >1, and that number falls to zero after 10-15 years; claims of Sharpe >4 should be met with skepticism. — via 1
2. Even perfect foresight cannot prevent levered portfolios from blowing up, yet every GP/LP assumes "it won't be my portfolio." — via 1
3. Raoul Pal reminds that traders rarely accumulate long-term wealth; the best-performing accounts belong to deceased investors because they didn't sell. Holding, not trading, is what builds wealth. — via 1

4. Tech, Energy, and AI Disruption

1. Base launched Base Core, a ~40 kWh home battery providing 36 hours of backup power, and closed a $1B Series D at a $13B valuation, per Elad Gil. — via 1
2. @jason predicts drones, autonomous vehicles, and robots will violently disrupt the gig economy, potentially eliminating ~9% of DC's workforce in 5-7 years and 5-10% of jobs in major US cities; he proposes auctioning autonomous-driving licenses to fund retraining and compensation. — via 1
3. Open-source models are now nearly indistinguishable from frontier models in his view, and enterprise adoption is rising because companies don't want to hand their intelligence to private firms; open-source token volume will exceed frontier models by 100x, becoming hard-to-track "dark tokens." — via 1 2
4. A security review of Bitcoin hardware wallets found no concerning vulnerabilities except ColdCard; a critical update warns that if ColdCard-generated keys alone meet the signing threshold, funds should be moved immediately, ideally via Slipstream to avoid public mempool RBF-sniping. — via 1 2