Index options markets now function like catastrophe insurance markets with concentrated writers

Evidence

While no analysis of the skew is yet definitive, the explanation most consistent with my interviews is Bates’s suggestion that the index options markets in the United States have come to resemble the markets in catastrophe risk: … The stock index options markets … appear to be functioning as an insurance market. A large clientele of assorted institutional investors predominantly buy stock index options, whereas a relatively small number of specialized option market making firms predominantly write them. These firms can delta-hedge their positions against small market fluctuations, but are perforce exposed in aggregate to jump and volatility risks. … Consequently, market makers limit their exposure to these risks by risk management techniques such as value at risk [see glossary] and worst-case scenario analysis. The limited capitalization of the market makers implies a limited supply of options, and the pricing of the extra risks spanned by options at the shadow prices of investors with relatively high aversions to those risks. — Donald MacKenzie, An Engine, Not a Camera, 926

Categorization

• XREF: This connects to the broader performativity thesis — the 1987 crash reshaped market structure itself, so the model-driven catastrophe-risk framing is internalized by market makers. Relevant to the ‘shaping markets’ argument running through the whole book. — connects to: Portfolio insurance designed to limit losses can amplify market volatility. — Shapiro, Susan P., The Social Control of Impersonal Trust, 144; Option theory infrastructure allows derivatives markets to exist at current scale — Donald MacKenzie, An Engine, Not a Camera: How Financial…, 1138; Derivatives evolved from risk-hedging tools into a dominant speculative asset class — Max Haiven, Cultures of Financialization, 135
• SEED: Angle: The 1987 crash as an institutional memory event that re-architected US derivatives markets differently from the UK’s — a natural experiment in how sociotechnical shock shapes market microstructure.

Broader Connections

• Portfolio insurance designed to limit losses can amplify market volatility. #corroborates (0.82) — Shapiro, Susan P., The Social Control of Impersonal Trust, 144
• Derivatives evolved from risk-hedging tools into a dominant speculative asset class #complicates (0.78) — Max Haiven, Cultures of Financialization, 135
• Option theory infrastructure allows derivatives markets to exist at current scale #expands (0.72) — Donald MacKenzie, An Engine, Not a Camera, 1138