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  2. Wear coefficient - Wikipedia

    en.wikipedia.org/wiki/Wear_coefficient

    The wear rate per unit sliding distance in the transient wear regime decreases until it has reached a constant value in the steady-state wear regime. Hence the standard wear coefficient value obtained from a volume loss versus distance curve is a function of the sliding distance.

  3. Single-index model - Wikipedia

    en.wikipedia.org/wiki/Single-index_model

    These equations show that the stock return is influenced by the market (beta), has a firm specific expected value (alpha) and firm-specific unexpected component (residual). Each stock's performance is in relation to the performance of a market index (such as the All Ordinaries). Security analysts often use the SIM for such functions as ...

  4. Beta (finance) - Wikipedia

    en.wikipedia.org/wiki/Beta_(finance)

    Beta is the hedge ratio of an investment with respect to the stock market. For example, to hedge out the market-risk of a stock with a market beta of 2.0, an investor would short $2,000 in the stock market for every $1,000 invested in the stock. Thus insured, movements of the overall stock market no longer influence the combined position on ...

  5. Stock valuation - Wikipedia

    en.wikipedia.org/wiki/Stock_valuation

    Stock valuation is the method of calculating theoretical values of companies and their stocks.The main use of these methods is to predict future market prices, or more generally, potential market prices, and thus to profit from price movement – stocks that are judged undervalued (with respect to their theoretical value) are bought, while stocks that are judged overvalued are sold, in the ...

  6. Market value - Wikipedia

    en.wikipedia.org/wiki/Market_value

    Market value or OMV (Open Market Valuation) is the price at which an asset would trade in a competitive auction setting.Market value is often used interchangeably with open market value, fair value or fair market value, although these terms have distinct definitions in different standards, and differ in some circumstances.

  7. Alpha (finance) - Wikipedia

    en.wikipedia.org/wiki/Alpha_(finance)

    Efficient market hypothesis (EMH) states that share prices reflect all information, therefore stocks always trade at their fair value on exchanges.This would mean consistent alpha generation (i.e. better performance than the market) is impossible, and proponents of EMH posit that investors would benefit from investing in a low-cost, passive portfolio.

  8. Stock market - Wikipedia

    en.wikipedia.org/wiki/Stock_market

    A stock market, equity market, or share market is the aggregation of buyers and sellers of stocks (also called shares), which represent ownership claims on businesses; these may include securities listed on a public stock exchange as well as stock that is only traded privately, such as shares of private companies that are sold to investors ...

  9. Factor investing - Wikipedia

    en.wikipedia.org/wiki/Factor_investing

    The most well-known factor is value investing, which can be defined primarily as the difference between intrinsic or fundamental value and the market value.The opportunity to capitalize on the value factor arises from the fact that when stocks suffer weakness in their fundamentals, leading the market to overreact and undervalue them significantly relative to their current earnings.