# Susquehanna International Group (SIG)

**Canonical:** https://apis.io/providers/susquehanna-international-group/  
**Website:** https://sig.com/  
**APIs profiled:** 0

Susquehanna International Group (SIG) is a privately held global quantitative trading firm founded in 1987 by a group of college friends who began trading on the Philadelphia Stock Exchange, leveraging quantitative skills and poker-derived decision science. Headquartered in Bala Cynwyd, Pennsylvania, the firm employs more than 3,500 people across 17+ offices worldwide and operates as one of the largest options market makers globally. SIG's businesses span Quantitative Trading, Predictions, Institutional Sales, Growth Equity (Susquehanna Growth Equity / SGE), Sustainable Investments, Asia-focused Venture Capital (notably an early and large stake in ByteDance), and the River's Edge promotional arm. SIG does not operate a public developer portal, expose external trading APIs, or publish open-source repositories under a public GitHub organization; all technology is internal to the trading and quantitative research platform. Public surface is limited to sig.com (company / careers / insights), the SGE site, and corporate communications.

## Kin Score — 4.4 / 100 (minimal)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 4.4).

| Facet | Score |
|---|---|
| Discoverability | 50.0 |
| Contract Quality | 0.0 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 2.6 |
| Developer Ergonomics | 0.0 |
| Commercial Clarity | 7.9 |
| Access Clarity | 7.9 |

Regulatory layer — **Securities & Market Data**: 18.3 (matched via tags).

## Agent readiness — 0.0 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Unknown — onboarding: unknown, pricing: unknown, trial: no (confidence: low).

## Security (1)

- **Susquehanna International Group Domain Security** — TLSv1.2 · DMARC

## Use cases (6)

- **Liquidity Provision On Listed Options** — Continuously quoting bids and offers on listed options markets to provide liquidity for institutional and retail order flow.
- **Systematic Multi-Asset Trading** — Operating quantitative strategies across equities, futures, FX, fixed income, and commodities using internal research and proprietary technology.
- **Growth-Stage Software And Fintech Investing** — Deploying SGE capital into growth-stage B2B software, fintech, healthcare IT, and information services companies.
- **Asia Technology Venture Investing** — Backing early- and growth-stage Asia-based technology companies through SIG's Asia VC arm, most notably ByteDance.
- **Internal Quantitative Research** — Building machine learning, statistical, and microstructure models used solely inside SIG's proprietary trading systems.
- **Recruiting And Training Quantitative Talent** — Recruiting from top universities and running multi-week training programs that develop traders, quants, and engineers from first principles.

## Tags

Quantitative Trading, Market Making, Proprietary Trading, Options, Derivatives, Institutional Sales, Growth Equity, Venture Capital, Machine-Learning, Financial-Services

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/susquehanna-international-group/). Scores are computed from the provider's own public artifacts under a published rubric.