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Alpha is a measure of the active return on an investment, the performance of that investment compared with a suitable market index.An alpha of 1% means the investment's return on investment over a selected period of time was 1% better than the market during that same period; a negative alpha means the investment underperformed the market.
In finance, market data is price and other related data for a financial instrument reported by a trading venue such as a stock exchange. Market data allows traders and investors to know the latest price and see historical trends for instruments such as equities , fixed-income products, derivatives , and currencies .
r it is return to stock i in period t r f is the risk free rate (i.e. the interest rate on treasury bills) r mt is the return to the market portfolio in period t is the stock's alpha, or abnormal return is the stock's beta, or responsiveness to the market return
U.S. stock indexes closed their best week in two months with a flourish on Friday. The Dow Jones Industrial Average rose 334 points, or 0.8%, and the Nasdaq composite rallied 1.5%. All the ...
The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on the American stock exchanges (including the 30 companies that compose the Dow Jones Industrial Average). The index includes about 80 percent of the American market by capitalization.
Energy stocks have outperformed the broader market to start the year, kicking off 2025 with gains as oil and natural gas prices have edged higher. The S&P 500 Energy Sector (XLE) is up 2.8% year ...
The direct alpha formula is derived from the definition of in Modern portfolio theory. We define , the rate of return, as the sum of a market return plus an alpha : = + in the scope of direct alpha, we consider that r(t) and b(t) are continuous rate.
CEO pay includes salary, bonuses, stock sales, and other payments. Average CEO Pay is calculated using the last year a director sat on the board of each company. Stock returns do not include dividends. All directors refers to people who sat on the board of at least one Fortune 100 company between 2008 and 2012.