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Finance GlossaryImplied Volatility In Options
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Implied Volatility In Options

Definition of Implied Volatility In Options

Implied volatility in options is a measure of the expected volatility of the underlying stock over the period of the options tenure. You could say that an option’s premium is related to the implied volatility - the change in the underlying share’s value over time affects the share price. In fact, the implied volatility rises when the options premium rises.

Related Terms

Government Bonds

Government bonds are debt instruments that allow the central banks to raise capital to finance operations. The types of government bonds are:

  • Treasury Bills
  • Fixed Rate Bonds
  • Floating Rate Bonds
  • State Development Loans
  • Sovereign Gold Bonds
  • Zero Coupon Bonds

Every government bond has a credit rating that’s based on the financial health of the country. The government is the apex institution of any country, which is why their credit rating is the high.

In India, you’ll notice government bonds with the credit rating SOV. This is known as a sovereign rating.

Delivery Notice

A delivery notice is produced by the seller of a commodity futures contract. It is proof of confirmation of the sellers intention to physically deliver the underlying commodity to the buyer at the pre-agreed date.

Beta Coefficient

Beta coefficient is used to measure the volatility of stocks in relation to changes in the market. Basically, Beta helps investors understand the risks associated with a stock compared to the market.

The formula to calculate the Beta coefficient is:

Beta (β) = Covariance (Ri, Rm) / Variance (Rm)

Where:

  • Ri = a stock's return
  • Rm = overall market's return
  • Covariance = ups & downs of stock returns versus ups & downs of market returns
  • Variance = the difference between market returns and its average


Generally, Beta values are of four types:

  • Beta < 1.0: stock less volatile than the market
  • Beta = 1.0: stock just as volatile as the market
  • Beta > 1.0: stock more volatile than the market
  • Negative Beta: stock shares inverse relation with the market

Forward Price

The forward price is the final value at which a forward contract is exercised, that is, delivered to the buyer by the seller. It is different from the spot price of the underlying asset as it includes the cost of carry like interest rates, storage cost, and other carrying charges. The formula to calculate forward price is:

Forward price: Spot Price − Cost of Carry (storage costs, interest rate, etc)

Box Spread

A box spread is a trading strategy that involves buying a bull call spread and a matching bear put spread. The components of a box spread are designed as so:

  • Bull call spread : two call options with a lower and upper strike price
  • Bear put spread : buying and selling puts at different strike prices of the same underlying asset with the same expiration

Derivatives Market

The derivatives market is a place where financial contracts like futures, options, forwards, and swaps are traded. It is a complex market that is a subset of the stock market, commodity market, currency market, and others depending on the underlying asset that’s a part of the derivative contract.



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