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Constant Function Market Maker
A constant-function market maker (CFMM) is a market maker with the property that that the amount of any asset held in its inventory is completely described by a well-defined function of the amounts of the other assets in its inventory. As a result, both wealth and liquidity are known and fixed given relative prices. This has made these rules popular in prediction markets (fixed cost of information) and decentralized finance (known price exposure). History An early description of a CFMM was published by economist Robin Hanson in ''"Logarithmic Market Scoring Rules for Modular Combinatorial Information Aggregation"'' (2002). Early literature referred to the broader class of "automated market makers", including that of the Hollywood Stock Exchange founded in 1999; the term "constant-function market maker" was introduced in ''"Improved Price Oracles: Constant Function Market Makers"'' (Angeris & Chitra 2020). Rumored to first be seen in production on a Minecraft server in 2012, CFMMs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Market Maker
A market maker or liquidity provider is a company or an individual that quotes both a buy and a sell price in a tradable asset held in inventory, hoping to make a profit on the '' bid–ask spread'', or ''turn.'' The benefit to the firm is that it makes money from doing so; the benefit to the market is that this helps limit price variation ( volatility) by setting a limited trading price range for the assets being traded. In U.S. markets, the U.S. Securities and Exchange Commission defines a "market maker" as a firm that stands ready to buy and sell stock on a regular and continuous basis at a publicly quoted price. A Designated Primary Market Maker (DPM) is a specialized market maker approved by an exchange to guarantee that they will take a position in a particular assigned security, option, or option index. In currency exchange Most foreign exchange trading firms are market makers, as are many banks. The foreign exchange market maker both buys foreign currency from clients ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concave Function
In mathematics, a concave function is the negative of a convex function. A concave function is also synonymously called concave downwards, concave down, convex upwards, convex cap, or upper convex. Definition A real-valued function f on an interval (or, more generally, a convex set in vector space) is said to be ''concave'' if, for any x and y in the interval and for any \alpha \in ,1/math>, :f((1-\alpha )x+\alpha y)\geq (1-\alpha ) f(x)+\alpha f(y) A function is called ''strictly concave'' if :f((1-\alpha )x + \alpha y) > (1-\alpha) f(x) + \alpha f(y)\, for any \alpha \in (0,1) and x \neq y. For a function f: \mathbb \to \mathbb, this second definition merely states that for every z strictly between x and y, the point (z, f(z)) on the graph of f is above the straight line joining the points (x, f(x)) and (y, f(y)). A function f is quasiconcave if the upper contour sets of the function S(a)=\ are convex sets. Properties Functions of a single variable # A differentia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Uniswap
Uniswap is a decentralized cryptocurrency exchange that uses a set of smart contracts (liquidity pools) to execute trades on its exchange. It's an open source project and falls into the category of a DeFi product ( Decentralized finance) because it uses smart contracts to facilitate trades. The protocol facilitates automated transactions between cryptocurrency tokens on the Ethereum blockchain through the use of smart contracts. , Uniswap was estimated to be the largest decentralized exchange and the fourth-largest cryptocurrency exchange overall by daily trading volume. History Uniswap was created on November 2, 2018 by Hayden Adams, a former mechanical engineer at Siemens. The Uniswap company received investments from venture capital firms, including Andreessen Horowitz, Paradigm Venture Capital, Union Square Ventures LLC and ParaFi. Uniswap’s average daily trading volume was US$220 million in October 2020. Traders and investors have utilized Uniswap because of its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Share (finance)
In financial markets, a share is a unit of equity ownership in the capital stock of a corporation, and can refer to units of mutual funds, limited partnerships, and real estate investment trusts. Share capital refers to all of the shares of an enterprise. The owner of shares in a company is a shareholder (or stockholder) of the corporation. A share is an indivisible unit of capital, expressing the ownership relationship between the company and the shareholder. The denominated value of a share is its face value, and the total of the face value of issued shares represent the capital of a company, which may not reflect the market value of those shares. The income received from the ownership of shares is a dividend. There are different types of shares such as equity shares, preference shares, deferred shares, redeemable shares, bonus shares, right shares, and employee stock option plan shares. Valuation Shares are valued according to the various principles in different market ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pro Rata
''Pro rata'' is an adverb or adjective meaning in equal portions or in proportion. The term is used in many legal and economic contexts. The hyphenated spelling ''pro-rata'' for the adjective form is common, as recommended for adjectives by some English-language style guides. In American English this term has been vernacularized to ''prorated'' or ''pro-rated''. Meanings More specifically, ''pro rata'' means: * In proportionality to some factor that can be exactly calculated * To count based on an amount of time that has passed out of the total time * Proportional ratioInvestigator web site Accessed May 29, 2008. Pro rata has a |
Volume (finance)
In capital markets, volume, or trading volume, is the amount (total number) of a security (or a given set of securities, or an entire market) that was traded during a given period of time. In the context of a single stock trading on a stock exchange, the volume is commonly reported as the number of shares that changed hands during a given day. The transactions are measured on stocks, bonds, options contracts, futures contracts and commodities. The average volume of a security over a longer period of time is the total amount traded in that period, divided by the length of the period. Therefore, the unit of measurement for average volume is shares per unit of time, typically per trading day. Significance Trading volume is usually higher when the price of a security is changing. News about a company's financial status, products, or plans, whether positive or negative, will usually result in a temporary increase in the trade volume of its stock. Shifts in trade volume can make obs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Opportunity Cost
In microeconomic theory, the opportunity cost of a particular activity is the value or benefit given up by engaging in that activity, relative to engaging in an alternative activity. More effective it means if you chose one activity (for example, an investment) you are giving up the opportunity to do a different option. The optimal activity is the one that, net of its opportunity cost, provides the greater return compared to any other activities, net of their opportunity costs. For example, if you buy a car and use it exclusively to transport yourself, you cannot rent it out, whereas if you rent it out you cannot use it to transport yourself. If your cost of transporting yourself without the car is more than what you get for renting out the car, the optimal choice is to use the car yourself. In basic equation form, opportunity cost can be defined as: "Opportunity Cost = (returns on best Forgone Option) - (returns on Chosen Option)." The opportunity cost of mowing one’s own ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maturity (finance)
In finance, maturity or maturity date is the date on which the final payment is due on a loan or other financial instrument, such as a bond or term deposit, at which point the principal (and all remaining interest) is due to be paid. Most instruments have a ''fixed maturity date'' which is a specific date on which the instrument matures. Such instruments include fixed interest and variable rate loans or debt instruments, however called, and other forms of security such as redeemable preference shares, provided their terms of issue specify a maturity date. It is similar in meaning to "redemption date". Some instruments have ''no fixed maturity date'' which continue indefinitely (unless repayment is agreed between the borrower and the lenders at some point) and may be known as "perpetual stocks". Some instruments have a range of possible maturity dates, and such stocks can usually be repaid at any time within that range, as chosen by the borrower. A ''serial maturity'' is whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Derivative (finance)
In finance, a derivative is a contract that ''derives'' its value from the performance of an underlying entity. This underlying entity can be an asset, Index fund, index, or interest rate, and is often simply called the "underlying". Derivatives can be used for a number of purposes, including insuring against price movements (Hedge (finance)#Etymology, hedging), increasing exposure to price movements for speculation, or getting access to otherwise hard-to-trade assets or markets. Some of the more common derivatives include Forward contract, forwards, Futures contract, futures, Option (finance), options, Swap (finance), swaps, and variations of these such as synthetic collateralized debt obligations and credit default swaps. Most derivatives are traded over-the-counter (finance), over-the-counter (off-exchange) or on an exchange such as the Chicago Mercantile Exchange, while most insurance contracts have developed into a separate industry. In the United States, after the financia ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greeks (finance)
In mathematical finance, the Greeks are the quantities representing the sensitivity of the price of derivatives such as options to a change in underlying parameters on which the value of an instrument or portfolio of financial instruments is dependent. The name is used because the most common of these sensitivities are denoted by Greek letters (as are some other finance measures). Collectively these have also been called the risk sensitivities, risk measures or hedge parameters. Use of the Greeks The Greeks are vital tools in risk management. Each Greek measures the sensitivity of the value of a portfolio to a small change in a given underlying parameter, so that component risks may be treated in isolation, and the portfolio rebalanced accordingly to achieve a desired exposure; see for example delta hedging. The Greeks in the Black–Scholes model are relatively easy to calculate, a desirable property of financial models, and are very useful for derivatives traders, especi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intrinsic Value (finance)
In finance, the intrinsic value of an asset usually refers to a value calculated on simplified assumptions. For example, the intrinsic value of an option is based on the current market value of the underlying instrument, but ignores the possibility of future fluctuations and the time value of money. Options An option is said to have intrinsic value if the option is in-the-money. When out-of-the-money, its intrinsic value is ''zero''. For an option, the intrinsic value is the same as the "immediate value" or the "current value" of the contract, which is the profit that could be gained by exercising the option immediately. The intrinsic value for an in-the-money option is calculated as the absolute value of the difference between the current price (''S'') of the underlying and the strike price (''K'') of the option. :IV_= 0 :IV_=\left \vert S-K \right \vert = \left \vert K-S \right \vert For example, if the strike price for a call option is USD 1.00 and the price of the un ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
