# Glossary of Terms

 Term Description Put Option A put option gives the owner/buyer the right to sell an asset, at a specified price, by a predetermined date to the seller of the put option.This means that no matter how low the price of an asset goes, the investor has the right to sell the asset for the agreed upon price Premium The money paid upfront by the option buyers to the option sellers in return. ​0.01 ETH is the premium paid by person A to person B. Option Seller The person who sells an option in return for a premium and is obligated to perform when the buyer exercises his right under the option contract. ​Person B is the option seller. Option Buyer The person who buys an option by paying a premium. This person has right but not obligation to exercise the option.​Person A is the option buyer/ owner. Underlying The asset that is being protected by the option contract is called the underlying asset. The asset that the owner/buyer of the put option has the right to sell is called the underlying asset. ​The underlying asset is cDai. Strike Asset The asset that the holder/buyer of the put option will receive their payment in if they sell the underlying asset is called the strike asset. The strike asset is USD. Strike Price The strike price is the specified price at which the buyer/owner of the option can sell the underlying asset.​The strike price is 1 USD. Collateral Asset The asset that the insurance provider puts down as collateral is called the collateral asset. ​The collateral asset is ETH. putsOutstanding The number of oTokens issued by a vault. minCollateralizationRatio The ratio of collateral to the amount of insurance payout that a vault would have to make is called the collateralization ratio. The minCollateralizationRatio is the lower bound that a vault's collateralization ratio is allowed to be at. Safe A vault that meets the minCollateralization condition is considered safe. i.e. ​​$minCollateralizationRatio <= collateral/ (putsOutstanding * strikePrice)$ Liquidation factor The maximum percentage of collateral that can be liquidated in one call of the liquidation function. Liquidation Incentive The reward that is paid out to the liquidator. The liquidator is paid out​$strikePrice * LiquidationIncentive$ for every oToken that they bring back to the insurance contract to liquidate. Exercise To exercise means to put into effect the right to sell the underlying asset at the specified price. Exercise Window The time period during which the option buyer/ owner can exercise their option. Number value * 10 ^ exponent. Mint The ERC20 function which generates new oTokens Issue oTokens The function that checks if a vault has sufficient collateral to mint oTokens. If so, it calls the mint function. Create Create = Open Vault + Add collateral + Issue oTokens.