Whois & Analysis for sig.com

Mathematical finance, also known as quantitative finance, is a field of applied mathematics, concerned with financial markets.

Generally, mathematical finance will derive and extend the mathematical or numerical models without necessarily establishing a link to financial theory, taking observed market prices as input.

Mathematical consistency is required, not compatibility with economic theory.

Thus, for example, while a financial economist might study the structural reasons why a company may have a certain share price, a financial mathematician may take the share price as a given, and attempt to use stochastic calculus to obtain the corresponding value of derivatives of the stock (see: Valuation of options; Financial modeling).

The fundamental theorem of arbitrage-free pricing is one of the key theorems in mathematical finance, while the Black–Scholes equation and formula are amongst the key results.

A financial market is a market in which people trade financial securities, commodities, and other fungible items of value at low transaction costs and at prices that reflect supply and demand.

Securities include stocks and bonds, and commodities include precious metals or agricultural products.

A limited liability partnership (LLP) is a partnership in which some or all partners (depending on the jurisdiction) have limited liabilities.

It therefore exhibits elements of partnerships and corporations.

In an LLP, one partner is not responsible or liable for another partner's misconduct or negligence.

This is an important difference from the traditional unlimited partnership under the Partnership Act 1890 (for the UK), in which each partner has joint and several liability.

In an LLP, some partners have a form of limited liability similar to that of the shareholders of a corporation.

In some countries, an LLP must also have at least one thing called as a "general partner" with unlimited liability.

Unlike corporate shareholders, the partners have the right to manage the business directly.

In contrast, corporate shareholders have to elect a board of directors under the laws of various state charters.

The board organizes itself (also under the laws of the various state charters) and hires corporate officers who then have as "corporate" individuals the legal responsibility to manage the corporation in the corporation's best interest.

A LLP also contains a different level of tax liability from that of a corporation.

A multinational corporation or worldwide enterprise is a corporate organization that owns or controls production of goods or services in one or more countries other than their home country.

It can also be referred to as an international corporation, a transnational corporation, or a stateless corporation.

There are subtle but real differences between these three labels, as well as those labels of multinational corporation and a worldwide enterprise.

Susquehanna International Group (SIG) is a privately held global investment, trading and technology firm servicing securities markets worldwide.

SIG comprises a number of affiliated entities specializing in trading and proprietary investments in equities, fixed income, energy, commodity, index and derivative products, private equity and venture capital, research, customer trading and institutional sales.

Susquehanna is probably best known for expertise in derivatives pricing and trading, especially equity options.