Muddy Waters Capital
Carson Block (founder, CIO)
Famed activist short seller expressing the AI-bubble risk indirectly — rather than shorting big-tech equities directly (which Block calls a 'widowmaker'), it bets on AI-driven job-loss feeding through to corporate credit, via shorts on investment-grade and high-yield credit ETFs.
SizePrivate
TypeHedge fund
Top holdingHYG
Positions
Short positions
HYGiShares iBoxx High Yield Corp Bond ETF
Apr 2026: bets against HYG as an AI-meltdown / credit-stress hedge
LQDiShares iBoxx Inv Grade Corp Bond ETF
Apr 2026: paired credit-ETF short on AI-driven job-loss / labor-market fears
Sign in to see the full holdings book, 13F filings and sources.
QAI analysis
Our take
Upgrade to Pro to see the full QAI analyst take on this fund.
Analyst work product, NFA — always verify.