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Trading basics

Short-rate model

A short-rate model, in the context of interest rate derivatives, is a mathematical model that describes the future evolution of interest rates by describing the future evolution of the short rate, usually written

Securities & exchanges

Single-stock futures

In finance, a single-stock future (SSF) is a type of futures contract between two parties to exchange a specified number of stocks in a company for a price agreed today (the futures price or the strike price) with delivery occurring at a specified future date, the delivery date. The contracts can be later traded on a futures exchange.

Trading basics

Slippage (finance)

In finance and the stock market, slippage is the difference between the execution price expected by the trader (usually the one indicated by the trading software) and the one at which the transaction actually happens. Market impact, liquidity, and frictional costs may contribute to slippage.

Finance

Snell envelope

The Snell envelope, used in stochastics and mathematical finance, is the smallest supermartingale dominating a stochastic process. The Snell envelope is named after James Laurie Snell.

Trading basics

Socially responsible investing

Socially responsible investing (SRI) is any investment strategy which seeks to consider financial return alongside ethical, social or environmental goals. The areas of concern recognized by SRI practitioners are often linked to environmental, social and governance (ESG) topics.

Finance

Spot contract

In finance, a spot contract, spot transaction, or simply spot, is a contract of buying or selling a commodity, security or currency for immediate settlement (payment and delivery) on the spot date, which is normally two business days after the trade date. The settlement price (or rate) is called spot price (or spot rate). A spot contract is in contrast with a forward contract or futures

Securities & exchanges

Spread option

In finance, a spread option is a type of option where the payoff is based on the difference in price between two underlying assets. For example, the two assets could be crude oil and heating oil; trading such an option might be of interest to oil refineries, whose profits are a function of the difference between these two prices. Spread options are generally traded over the counter, rath

Securities & exchanges

Squarepoint Capital

Squarepoint Capital ("Squarepoint") is a global investment management firm headquartered in New York City & London. The firm is known for its quantitative finance approach to investing. Squarepoint has additional offices in Bangalore, Boston, Dubai, Geneva, Hong Kong, Houston, Jersey, London, Madrid, Montreal, New York, Paris, Singapore, and Zug.

Securities & exchanges

Squeeze-out

A squeeze-out or squeezeout, sometimes synonymous with freeze-out, is the compulsory sale of the shares of minority shareholders of a joint-stock company for which they receive a fair cash compensation.

Trading basics

Statistical arbitrage

In finance, statistical arbitrage (Stat Arb or StatArb) is a class of short-term financial trading strategies that employ mean reversion models involving broadly diversified portfolios of securities (hundreds to thousands) held for short periods of time (generally seconds to days). These strategies are supported by substantial mathematical, computational, and trading platforms.

Finance

Stochastic differential equation

A stochastic differential equation (SDE) is a differential equation in which one or more of the terms is a stochastic process, resulting in a solution which is also a stochastic process. SDEs have many applications throughout pure mathematics and are used to model various behaviours of stochastic models such as prices of listed company shares, random growth models or physical systems tha

Securities & exchanges

Stochastic volatility

In statistics, stochastic volatility models are those in which the variance of a stochastic process is itself randomly distributed. They are used in the field of mathematical finance to evaluate derivative securities, such as options. The name derives from the models' treatment of the underlying security's volatility as a random process, governed by state variables such as the price leve

Securities & exchanges

Stock dilution

Stock dilution, also known as equity dilution, is the decrease in existing shareholders' ownership percentage of a company as a result of the company issuing new equity. New equity increases the total shares outstanding which has a dilutive effect on the ownership percentage of existing shareholders. This increase in the number of shares outstanding can result from a primary market off

Securities & exchanges

Stock fund

A stock fund, or equity fund, is a fund that invests in stocks, also called equity securities. Stock funds can be contrasted with bond funds and money funds. Fund assets are typically mainly in stock, with some amount of cash, which is generally quite small, as opposed to bonds, notes, or other securities. This may be a mutual fund or exchange-traded fund. The objective of an equity fun

Securities & exchanges

Stock market index

In finance, a stock market index or stock index is an index that measures the performance of a stock market, or of a subset of a stock market. It helps investors compare current stock price levels with past prices to calculate market performance.

Securities & exchanges

Stock market index future

In finance, a stock market index future is a cash-settled futures contract on the value of a particular stock market index. The turnover for the global market in exchange-traded equity index futures is notionally valued, for 2008, by the Bank for International Settlements at US$130 trillion.

Securities & exchanges

Stock split

A stock split or stock divide increases the number of shares in a company. For example, after a 2-for-1 split, each investor will own double the number of shares, and each share will be worth half as much. A stock split causes a decrease of market price of individual shares, but does not change the total market capitalization of the company: stock dilution does not occur.

Finance

Stock trader

A stock trader or equity trader or share trader, also called a stock investor, is a person or company involved in trading stocks and attempting to profit from the purchase and sale of those securities. Stock traders may be an investor, agent, hedger, arbitrageur, speculator, or stockbroker. Such equity trading in large publicly traded companies may be through a stock exchange. Stock shar

Trading basics

Stock valuation

Stock valuation is the method of calculating theoretical values of companies and their stocks. The main use of these methods is to predict future market prices, or more generally, potential market prices, and thus to profit from price movement – stocks that are judged undervalued (with respect to their theoretical value) are bought, while stocks that are judged overvalued are sold, in th

Finance

Straddle

In finance, a straddle strategy involves two transactions in options on the same underlying, with opposite positions. One holds long risk, the other short. As a result, it involves the purchase or sale of particular option derivatives that allow the holder to profit based on how much the price of the underlying security moves, regardless of the direction of price movement.

Securities & exchanges

Strangle (options)

In finance, a strangle is an options strategy involving the purchase or sale of two options, allowing the holder to profit based on how much the price of the underlying security moves, with a neutral exposure to the direction of price movement. A strangle consists of one call and one put with the same expiry and underlying but different strike prices. Typically the call has a higher stri

Securities & exchanges

Strike price

In finance, the strike price (or exercise price) of an option is a fixed price at which the owner of the option can buy (in the case of a call), or sell (in the case of a put), the underlying security or commodity. The strike price may be set by reference to the spot price, which is the market price of the underlying security or commodity on the day an option is taken out. Alternatively,

Trading basics

Style drift

Style drift occurs when a mutual fund's actual and declared investment style differs.

Securities & exchanges

Style investing

Style investing is an investment approach in which securities are grouped into categories, and portfolio allocation is based on selection among "styles" rather than among individual securities.

Securities & exchanges

Swap (finance)

In finance, a swap is a derivative in which two parties agree to exchange one stream of cash flows for another, based on some agreed formula. An example is a floating-for-fixed interest rate swap, which calls for (a) payments by one party based on the product of a floating interest rate and a fixed amount, called the notional, in exchange for (b) payments by the counterparty based on the

Finance

Swaption

A swaption (a portmanteau of "swap" and "option") is an option granting its owner the right but not the obligation to enter into an underlying swap on specified terms at a future date. In practice the term is most commonly used for options on interest rate swaps, where the holder has the right to enter into a fixed-for-floating interest rate swap.

Finance

Swing trading

Swing trading is a speculative trading strategy in financial markets where a tradable asset is held for one or more days in an effort to profit from price changes or swings. A swing trading position is typically held longer than a day trading position, but shorter than buy-and-hold investment strategies that can be held for months or years. Profits can be sought by either buying an asse

Securities & exchanges

Synthetic position

In finance, a synthetic position is a way to create the payoff of a financial instrument using other financial instruments.

Finance

Systematic risk

In finance and economics, systematic risk (in economics often called aggregate risk or undiversifiable risk) is vulnerability to events which affect aggregate outcomes such as broad market returns, total economy-wide resource holdings, or aggregate income. In many contexts, events like earthquakes, epidemics and major weather catastrophes pose aggregate risks that affect not only the dis

Trading basics

T-model

In finance, the T-model is a formula that states the returns earned by holders of a company's stock in terms of accounting variables obtainable from its financial statements. The T-model connects fundamentals with investment return, allowing an analyst to make projections of financial performance and turn those projections into a required return that can be used in investment selection.

Trading basics

Taxation of private equity and hedge funds

Private equity funds and hedge funds are private investment vehicles used to pool investment capital, usually for a small group of large institutional or wealthy individual investors. They are subject to favorable regulatory treatment in most jurisdictions from which they are managed, which allows them to engage in financial activities that are off-limits for more regulated companies.

Fiat currencies

Technical analysis

In finance, technical analysis is an analysis methodology for analysing and forecasting the direction of prices through the study of past market data, primarily price and volume. As a type of active management, it stands in contradiction to much of modern portfolio theory. The efficacy of technical analysis is disputed by the efficient-market hypothesis, which states that stock market pr

Trading basics

Total return swap

In finance, a total return swap (TRS), total rate of return swap (TRORS), or cash-settled equity swap is a financial contract that transfers both the credit risk and market risk of an underlying asset.

Securities & exchanges

Tracking stock

Tracking stock (also known as letter stock and targeted stock) is a specialized equity offering issued by a company that is based on the operations of a defined business within the larger organization (such as, for instance, a wholly owned subsidiary of a diversified firm). Therefore, the tracking stock will be traded at a price related to the operations of the specific division of the c

Finance

Trade (finance)

In finance, a trade is an exchange of a security such as stocks, bonds, commodities, currencies, derivatives or any valuable financial instrument for "cash". Such a financial transaction is usually done by participants of an exchange such as a stock exchange, commodity exchange or futures exchange with a short-dated promise to pay in the currency of the country where the 'exchange' is lo

Trading basics

Treasury basis trade

Treasury basis trading is a financial strategy that involves taking offsetting positions in a cash market instrument (typically a U.S. Treasury bond) and its related derivative, such as a Treasury futures contract. The strategy seeks to exploit pricing discrepancies between the two instruments, which are expected to converge over time. It is a specialized form of basis trading applied to

Securities & exchanges

Trend following trading

Trend following or trend trading is a trading strategy according to which one should buy an asset when its price trend goes up, and sell when its trend goes down, expecting price movements to continue.

Finance

Treynor ratio

In finance, the Treynor reward-to-volatility model (sometimes called the reward-to-volatility ratio or Treynor measure), named after American economist Jack L. Treynor, is a measurement of the returns earned in excess of that which could have been earned on an investment that has no risk that can be diversified (e.g., Treasury bills or a completely diversified portfolio), per unit of mar

Finance

Trinomial tree

The trinomial tree is a lattice-based computational model used in financial mathematics to price options on equity. It was developed by Phelim Boyle in 1986. It is an extension of the binomial options pricing model, and is conceptually similar. It can also be shown that the approach is equivalent to the explicit finite difference method for option pricing.

Finance

Turbo warrant

A turbo warrant (or callable bull/bear contract) is a kind of stock option. Specifically, it is a barrier option of the down and out type. It is similar to a vanilla contract, but with two additional features: It has a low vega, meaning that the option price is much less affected by the implied volatility of the stock market, and it is highly geared due to the possibility of knockout. Th

Finance

Two-moment decision model

In decision theory, economics, and finance, a two-moment decision model is a model that describes or prescribes the process of making decisions in a context in which the decision-maker is faced with random variables whose realizations cannot be known in advance, and in which choices are made based on knowledge of two moments of those random variables. The two moments are almost always t

Securities & exchanges

Uptick rule

The uptick rule is a trading restriction that states that short selling a stock is allowed only on an uptick. For the rule to be satisfied, the short must be either at a price above the last traded price of the security, or at the last traded price when the most recent movement between traded prices was upward (i.e. the security has traded below the last-traded price more recently than a

Finance

Valuation (finance)

In finance, valuation is the process of determining the value of a (potential) investment, asset, or security.

Finance

Valuation of options

In finance, a price (premium) is paid or received for purchasing or selling options.

Trading basics

Value averaging

Value averaging (VA), also known as dollar value averaging (DVA), is a technique for adding to an investment portfolio that is controversially claimed to provide a greater return than other methods such as dollar cost averaging. With the method, investors add to (or withdraw from) their portfolios in such a way that the portfolio balance reaches a predetermined monthly or quarterly targe

Securities & exchanges

Value investing

Value investing is an investment paradigm that involves buying securities that appear underpriced by some form of fundamental analysis. Modern value investing derives from the investment philosophy taught by Benjamin Graham and David Dodd at Columbia Business School starting in 1928 and subsequently developed in their 1934 text Security Analysis.

Securities & exchanges

Vanna–Volga pricing

The Vanna–Volga method is a mathematical tool used in finance. It is a technique for pricing first-generation exotic options in foreign exchange market (FX) derivatives.

Banking

Variance swap

A variance swap is an over-the-counter financial derivative that allows one to speculate on or hedge risks associated with the magnitude of movement, i.e. volatility, of some underlying product, like an exchange rate, interest rate, or stock index.

Trading basics

Vasicek model

In finance, the Vasicek model is a mathematical model describing the evolution of interest rates. It is a type of one-factor short-rate model as it describes interest rate movements as driven by only one source of market risk. The model can be used in the valuation of interest rate derivatives, and has also been adapted for credit markets. It was introduced in 1977 by Oldřich Vašíček, an

Finance

Volatility (finance)

In finance, volatility (usually denoted by "σ") is the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns.

Finance

Volatility arbitrage

In finance, volatility arbitrage (vol arb) is a term for financial arbitrage techniques directly dependent and based on volatility.

Securities & exchanges

Volatility swap

In finance, a volatility swap is a forward contract on the future realised volatility of a given underlying asset. Volatility swaps allow investors to trade the volatility of an asset directly, much as they would trade a price index. Its payoff at expiration is equal to

Securities & exchanges

Voting interest

Voting interest (or voting power) in business and accounting means the total number, or percent, of votes entitled to be cast on the issue at the time the determination of voting power is made, excluding a vote which is contingent upon the happening of a condition or event which has not occurred at the time.

Trading basics

Vulture fund

A vulture fund is a hedge fund or private-equity fund that invests in debt considered to be very weak or in default, known as distressed debt. Investors in the fund profit by buying debt at a discounted price on a secondary market and then using numerous methods to sell the debt for more than the purchasing price. Debtors include companies, countries, and individuals.

Securities & exchanges

Warrant (finance)

In finance, a warrant is a security that entitles the holder to buy or sell stock, typically the stock of the issuing company, at a fixed price called the strike price.

Securities & exchanges

Weather derivative

Weather derivatives are financial instruments that can be used by organizations or individuals as part of a risk management strategy to reduce risk associated with adverse or unexpected weather conditions. Weather derivatives are index-based instruments that usually use observed weather data at a weather station to create an index on which a payout can be based. This index could be total

Finance

Weighted average cost of capital

The weighted average cost of capital (WACC) is the rate that a company is expected to pay on average to all its security holders to finance its assets. The WACC is commonly referred to as the firm's cost of capital. Importantly, it is dictated by the external market and not by management. The WACC represents the minimum return that a company must earn on an existing asset base to satisfy

Securities & exchanges

Year-on-year inflation-indexed swap

A year-on-year inflation-indexed swap (YYIIS) is a standard derivative product over inflation rate. The underlying is a single consumer price index (CPI). The first swap of this kind was traded through the inter-dealer broker network in November 1999.

Finance

Yield (finance)

In finance, the yield on a security is a measure of the ex-ante return to a holder of the security. It is one component of return on an investment, the other component being the change in the market price of the security. It is a measure applied to fixed income securities, common stocks, preferred stocks, convertible stocks and bonds, annuities and real estate investments.

Trading basics

York Capital Management

York Capital Management (York Capital) is an American investment management company, founded by James Dinan and headquartered in New York City.

Securities & exchanges

Zero coupon swap

In finance, a zero coupon swap (ZCS) is an interest rate derivative (IRD). In particular it is a linear IRD, that in its specification is very similar to the much more widely traded interest rate swap (IRS).

Securities & exchanges

Zero-coupon inflation swap

A zero-coupon inflation swap (ZCIS), also called a zero-coupon inflation-indexed swap (ZCIIS), is a standard derivative product whose payoff depends on the inflation rate realized over a given period of time. The underlying asset is a single consumer price index (CPI).