Polybius Capital

Polybius Capital

Polybius Capital was founded in 2017 by Alfred Shang and Bing Yuan. Shang, previously a portfolio manager at D.E. Shaw, and Yuan, a former managing director at Temasek Holdings, structured the firm with anchor capital from a prominent Asian family, a major North American university endowment, and an unnamed Middle Eastern sovereign wealth fund (per Bloomberg, 2022). The firm operates from a registered address in the Cayman Islands and maintains a trading floor in Los Angeles, with additional satellite offices across major financial centers. The firm deploys capital across a barbell of deep-value public equities and early-to-growth-stage private technology companies. On the public side, Polybius runs a concentrated, long-biased book focused on global industrial cyclicals and energy-transition beneficiaries. Its private portfolio targets applied AI, enterprise infrastructure, and cybersecurity. Known positions have included stakes in Arm Holdings during its post-IPO window and a growth-round allocation to Anthropic alongside the FTX estate's liquidators (per The Information, 2024). The fund structures private exposure through direct equity, simple agreements for future equity, and occasional special-purpose vehicles. Its geographic footprint covers North America, Japan, and select markets in Southeast Asia and Australia. Polybius keeps headcount deliberately lean. The firm operates a single pooled vehicle with a multi-year lock-up, avoiding the fund-of-one complexity common among family-backed managers. In September 2023, Polybius opened a dedicated London office to deepen coverage of European public equities and to source private AI deals across the Cambridge-London-Oxford triangle (per the firm's official communications, 2023). The firm has not announced a formal philanthropic structure, though principals have made private charitable contributions to computational biology and open-source AI safety research. The firm's structural differentiator is its hybrid mandate: it is neither a pure family office nor a blind-pool venture fund. The anchor family's balance sheet sits alongside external endowment and sovereign capital in the same vehicle, giving the firm permanent, patient capital with a mandate that tolerates both 13-F concentrations and decade-long private holds. This architecture allows Shang to operate a public book that looks like a Tiger Cub's and a private book that prices rounds like a strategic corporate VC — a combination few managers can replicate without the explicit permission of a multi-generational family shareholder (per The Wall Street Journal, 2022).