Susquehanna International Group (SIG)
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.
More than an index entry, but the surface is still mostly links rather than artifacts — the cohort most likely to move a full band from modest, well-targeted work.
API Evangelist profiles Susquehanna International Group (SIG) the way a machine reads it — 16 machine-readable artifacts, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Susquehanna International Group (SIG) scores 17.4/100 (emerging), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Susquehanna International Group (SIG)
Each block below is one kind of artifact we hold for Susquehanna International Group (SIG). For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
Features 9
The notable capabilities this provider advertises, captured as structured features so they can be searched and compared instead of read one landing page at a time.
Notable capabilities this provider offers.
Quantitative Trading
Systematic, model-driven trading across equities, options, ETFs, futures, commodities, FX, and fixed income on global exchanges and OTC venues.
Options Market Making
One of the largest global options market makers, providing two-sided quotes and liquidity across listed equity and index options markets.
Predictions
SIG's data-driven forecasting and prediction-market expertise applied internally to trading and decision making.
Institutional Sales
Client-facing trading services for institutional counterparties needing access to SIG's liquidity and execution.
Susquehanna Growth Equity (SGE)
Growth-stage equity investment arm investing in software, information services, financial technology, and healthcare IT companies.
Sustainable Investments
ESG-aligned investment activities within the broader SIG family of investment vehicles.
Asia Venture Capital
Early-stage and growth venture investing in Asia, including SIG's well-known early and large stake in ByteDance.
River's Edge
SIG's promotional, events, and brand-experience division.
Education And Training Program
SIG's in-house trading and quantitative research training curriculum, grounded in game theory, decision science, and poker-derived probabilistic reasoning.
Scroll within the panel for all 9 ·
Security Posture 1
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Use Cases 6
What developers actually build with this provider — captured so the catalogue answers 'what is this for', not just 'what does this expose'.
What developers build with this provider.
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.
Resources
Every other property we hold for Susquehanna International Group (SIG) — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Build 1
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 1
Status, limits, changes, and where to get help
Commercial 2
Pricing, plans, and the legal terms of use
Company 7
The organization behind the API
Scroll within the panel for all 7 ·
Other 6
Properties that don't map to a standard resource type
← All providers · Data indexed from github.com/api-evangelist/susquehanna-international-group · machine-readable index on apis.io