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Fidelity is the quality of faithfulness or loyalty. Its original meaning regarded duty in a broader sense than the related concept of fealty. Both derive from the Latin word fidēlis, meaning "faithful or loyal". In the City of London financial markets it has traditionally been used in the sense encompassed in the motto "my word is my bond".
Fidelity Investments, formerly known as Fidelity Management & Research (FMR), is an American multinational financial services corporation based in Boston, Massachusetts. Established in 1946, the company is one of the largest asset managers in the world, with $4.9 trillion in assets under management , and, as of December 2023 [update] , $12.6 ...
Definition. The fidelity between two quantum states and , expressed as density matrices, is commonly defined as: (,) = ().The square roots in this expression are well-defined because both and are positive semidefinite matrices, and the square root of a positive semidefinite matrix is defined via the spectral theorem.
High fidelity (often shortened to Hi-Fi or HiFi) is the high-quality reproduction of sound. It is popular with audiophiles and home audio enthusiasts. Ideally, high-fidelity equipment has inaudible noise and distortion , and a flat (neutral, uncolored) frequency response within the human hearing range .
FIS (company) Fidelity National Information Services, Inc. ( FIS) is an American multinational corporation which offers a wide range of financial products and services. FIS is most known for its development of Financial Technology, or FinTech, and as of Q2 2024 it offers its solutions in two primary segments: Banking Solutions & Capital Market ...
Fidelity when personified in Western art stands for the secular aspect of Faith, or the trust that exists between a master and servant, or in family relationships. Fidelity is often represented as a woman, shown holding a golden seal and a key, but may also be represented by a dog. Fidelity may be shown alone, or may be accompanied by a dog, a ...
A fiduciary is a person who holds a legal or ethical relationship of trust with one or more other parties (person or group of persons). Typically, a fiduciary prudently takes care of money or other assets for another person. One party, for example, a corporate trust company or the trust department of a bank, acts in a fiduciary capacity to ...
Peter Lynch. Peter Lynch (born January 19, 1944) [1] is an American investor, mutual fund manager, author and philanthropist. As the manager of the Magellan Fund [2] at Fidelity Investments between 1977 and 1990, Lynch averaged a 29.2% annual return, [3] consistently more than double the S&P 500 stock market index and making it the best ...