What is alpha meaning?

Alpha is the first letter of the Greek alphabet and is commonly used to represent the concept of dominance or superiority, often used to describe someone or something that is superior to others. In the context of finance, alpha refers to the excess return earned on an investment compared to the expected return. In the context of technology, alpha may refer to a pre-release version of a software program or video game, which is made available to a limited audience for testing and feedback. Additionally, alpha can also refer to a type of brain wave associated with a state of deep relaxation and meditation.