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Portfolio margin is a risk-based margin policy available to qualifying US investors. The goal of portfolio margin is to align margin requirements with the overall risk of the portfolio. Portfolio margin usually results in significantly lower margin requirements on hedged positions than under traditional rules.
Within economics, margin is a concept used to describe the current level of consumption or production of a good or service. [1] Margin also encompasses various concepts within economics, denoted as marginal concepts , which are used to explain the specific change in the quantity of goods and services produced and consumed.
The current liquidating margin is currently £60 "in favour of the investor". The minimum margin requirement is now -£60 + £10 = -£50. In other words, the investor can run a deficit of £50 in his margin account and still fulfil his margin obligations. This is the same as saying he can borrow up to £50 from the broker.
If you were to invest $10,000 in a good stock and get a 20 percent return, you’d make $2,000. But what if you could have borrowed another $10,000 to buy more stock and doubled your profits ...
In order to decrease the risk of a counter party to default, a technique called portfolio margining is applied, which simply means that the assets within a portfolio are clustered and sorted by the descending projected net loss, e.g. calculated by a pricing model. [2] One can then determine for which cluster(s) one wants to perform margin calls.
SPAN is a portfolio margining method that uses grid simulation. It calculates the likely loss in a set of derivative positions (also called a portfolio), and sets this value as the initial margin payable by the firm holding the portfolio. In this manner, SPAN provides for offsets between correlated positions and enhances margining efficiency.
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The return on equity (ROE) is a measure of the profitability of a business in relation to its equity; [1] where: . ROE = Net Income / Average Shareholders' Equity [1] Thus, ROE is equal to a fiscal year's net income (after preferred stock dividends, before common stock dividends), divided by total equity (excluding preferred shares), expressed as a percentage.