Hyperscaler capex arms race $660B-$750B 2026; debt risks and emerging market buildout

Hyperscaler capex continues to escalate with $660B-$750B in 2026. New signals: Alphabet $20-25B bond raise, capex $195-205B; cloud revenue surge ($370B annualized, 82% Google Cloud growth) provides concrete ROI evidence. However, financial stability risks intensify: Dario Amodei admits 20% revenue miss means bankruptcy; Nvidia cosigning $250B+ loans for OpenAI; $45B AI fund implodes with 5x leverage and 439% reversal. Off-balance-sheet leases $1.09T, AI debt $500B (Goldman), $1.46T physical assets surpassing oil majors. Supply-chain bottlenecks (memory, power) quantified. Tesla/SpaceX Terafab chip factory adds non-hyperscaler chip manufacturing push. Cloud market share Q2 2026: AWS 28%, Google 15%, Microsoft 20% flat; total $143B +43%, GenAI +165%. Wafer shortage emerging as next bottleneck. BIS warns on four pressure points. Damodaran calls $745B capex 'overinvesting'. New infra funding: Firmus raising $3B+ equity with Nvidia and Blackstone backing, valuation ~$5.5B. Fresh signals: AI debt market tightening – $200B raised by tech giants this year, but bonds from Nvidia, SpaceX, Amazon cratered post-issue; BlackRock had to offer 7.5% yield for Meta $12.5B deal; bankers spacing out sales. Trade rotation from chips to software: SOXX down, IGV up. CoreWeave earnings preview: $2.55B rev (+111%), adjusted loss -$1.22, 15.5% swing. New data: Microsoft is the only US hyperscaler with positive FCF; BofA forecasts aggregate FCF swinging from +$180B to -$186B by 2028, with capex approaching $1.2T. Expert POV: $600B Magnificent Seven capex, data center market to $699B by 2034. Another piece reinforces Microsoft's tens-of-billions AI revenue as justification for continued spending. Latest: Nscale IPO on $51B backlog, $100M Q2 revenue; Neoclouds $250B by 2030 projection; Blackstone/Firmus deal. New today: Alphabet $20-25B bond sale; Microsoft forecast lifts shares; data center construction spend $50.7B annualized, 900% rise, cost per sq ft $415; bubble analysis piece highlights capital timing risk with $725B capex, $7.6T cumulative build-out, Google Cloud $460B backlog, Anthropic $30B+ run-rate. Also: $500B AI debt issued in 2026 with CDS spreads rising; Elon's 10GW+ data center ambition ($300-500B capex) with desperation premium; AI Mega IPO wave $3.8T combined valuation from SpaceX, OpenAI, Anthropic. BCE $1.3B AI data center spend in Canada adds sovereign infra signal. New: Perplexity reports $740B AI spending in 2026 (+77% YoY), IDC projects $1.21T by 2030 at 49.2% CAGR. BofA survey shows 45% of fund managers see AI bubble as top tail risk (up from 28%), S&P 500 concentration at 50.8% top 20 stocks. Scrutiny piece highlights $900B spending, $2.5T revenue needed to cover capex, and adoption plateau risks. Zayo-NVIDIA fiber expansion (8,000 miles) adds network infrastructure bottleneck signal. Gartner's AI-optimized IaaS forecast: $42B in 2026, $66B in 2027, inference overtaking training this year. New today: Intel $15B stock sale tests investor patience; J.P. Morgan $697B hyperscaler capex estimate with financing discipline; Nvidia $500B Wall Street financing deal; Moody's Zandi warns of 40% probability of muted S&P returns despite AI GDP contribution.