Modern portfolio theory in the context of Standard deviation

Asset management is a systematic approach to the governance and realization of all value for which a group or entity is responsible. It may apply both to tangible assets (physical objects such as complex process or manufacturing plants, infrastructure, buildings or equipment) and to intangible assets (such as intellectual property, goodwill or financial assets). Asset management is a systematic process of developing, operating, maintaining, upgrading, and disposing of assets in the most cost-effective manner (including all costs, risks, and performance attributes).

Theory of asset management primarily deals with the periodic matter of improving, maintaining or in other circumstances assuring the economic and capital value of an asset over time. The term is commonly used in engineering, the business world, and public infrastructure sectors to ensure a coordinated approach to the optimization of costs, risks, service/performance, and sustainability. The term has traditionally been used in the financial sector to describe people and companies who manage investments on behalf of others. Those include, for example, investment managers who manage the assets of a pension fund.

Financial risk is any of various types of risk associated with financing, including financial transactions that include company loans in risk of default. Often it is understood to include only downside risk, meaning the potential for financial loss and uncertainty about its extent.

Modern portfolio theory initiated by Harry Markowitz in 1952 under his thesis titled "Portfolio Selection" is the discipline and study which pertains to managing market and financial risk. In modern portfolio theory, the variance (or standard deviation) of a portfolio is used as the definition of risk.

Financial risk management is the practice of protecting economic value in a firm by managing exposure to financial risk - principally credit risk and market risk, with more specific variants as listed aside - as well as some aspects of operational risk. As for risk management more generally, financial risk management requires identifying the sources of risk, measuring these, and crafting plans to mitigate them. See Finance § Risk management for an overview.

Financial risk management as a "science" can be said to have been born with modern portfolio theory, particularly as initiated by Professor Harry Markowitz in 1952 with his article, "Portfolio Selection"; see Mathematical finance § Risk and portfolio management: the P world.

Wealth management (WM) or wealth management advisory (WMA) is an investment advisory service that provides financial management and wealth advisory services to a wide array of clients ranging from affluent to high-net-worth (HNW) and ultra-high-net-worth (UHNW) individuals and families.

It is a discipline which incorporates structuring and planning wealth to assist in growing, preserving, and protecting wealth, whilst passing it onto the family in a tax-efficient manner and in accordance with their wishes. Wealth management brings together tax planning, wealth protection, estate planning, succession planning, and family governance.

Harry Max Markowitz (August 24, 1927 – June 22, 2023) was an American economist who received the 1989 John von Neumann Theory Prize and the 1990 Nobel Memorial Prize in Economic Sciences.

Markowitz was a professor of finance at the Rady School of Management at the University of California, San Diego (UCSD). He is best known for his pioneering work in modern portfolio theory, studying the effects of asset risk, return, correlation and diversification on probable investment portfolio returns.