Index Arbitrage
Definition of Index Arbitrage
Related Terms
Asset Allocation
Volatility
Beta Coefficient
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
Call Option
There are three components to a call option:
- Premium: the price paid to buy a call option
- Strike price: the pre-agreed price of the underlying asset
- Expiration date: the day after which the option contract will be worthless
Operating Cash Flow (OCF)
Debt To Equity Ratio
Debt to equity ratio: Total liabilities / Shareholder equity
A high debt to equity ratio means that a company is taking on more debt to run its business. A low debt to equity ratio means that a company is operating at low debt.
That’s why investors calculate the D/E ratio to understand a company’s ability to operate without debt. Generally, D/E is used for comparative analysis within sectors, not across industries because the ideal debt ratio may vary.

