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  2. Volatility (finance) - Wikipedia

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

    CBOE Volatility Index (VIX) from December 1985 to May 2012 (daily closings) In finance, volatility (usually denoted by "σ") is the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns. Historic volatility measures a time series of past market prices.

  3. Foreign exchange market - Wikipedia

    en.wikipedia.org/wiki/Foreign_exchange_market

    The foreign exchange market (forex, FX (pronounced "fix"), or currency market) is a global decentralized or over-the-counter (OTC) market for the trading of currencies. This market determines foreign exchange rates for every currency. It includes all aspects of buying, selling and exchanging currencies at current or determined prices.

  4. Foreign exchange risk - Wikipedia

    en.wikipedia.org/wiki/Foreign_exchange_risk

    Many businesses were unconcerned with, and did not manage, foreign exchange risk under the international Bretton Woods system.It was not until the switch to floating exchange rates, following the collapse of the Bretton Woods system, that firms became exposed to an increased risk from exchange rate fluctuations and began trading an increasing volume of financial derivatives in an effort to ...

  5. Market volatility goes both ways: Chart of the Week

    www.aol.com/finance/market-volatility-goes-both...

    Volatility is up, and the S&P 500 chalked both its best and worst day of the year this past week. And that you can have both in the span of a few days is an important market lesson.

  6. How implied volatility works with options trading

    www.aol.com/finance/implied-volatility-works...

    Market conditions: Major economic events — such as interest rate changes, unemployment data, market crashes or geopolitical tensions — can impact market volatility and, consequently, implied ...

  7. List of countries by foreign-exchange reserves - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    If market participants believe that a country has sufficient reserves to support its currency, they are less likely to engage in speculative attacks that could lead to a sharp depreciation. In times of economic uncertainty or financial market volatility , central banks can use reserves to smooth out fluctuations in the exchange rate, reducing ...

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