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Slovník pojmů a strategií
pro obchodování opcí
Kompletní slovník opcí: strategie, pojmy, řecká písmena a postupy pro výpis opcí. Přehledně, srozumitelně, pro začátečníky i pokročilé. Naučte se obchodovat opce efektivně.
Basic concepts
Beginner, Advanced
Implied volatility
The expected future volatility of the underlying asset, as determined by the market, determines the price of the option.
Detail
Implied Volatility (IV) expresses the market's expectations about the future volatility (fluctuations) of the price of the underlying asset during the life of the option. It is not the actual historical volatility, but an estimate of future movement. A higher IV means that the market expects larger movements, which increases the option premium. IV is a key component of the option price and its change directly affects the value of the option even without movement of the underlying. IV usually increases with uncertainty, events (earnings, results) and decreases in a calm market.
Implied Volatility (IV) is an estimate of the future volatility that the market expects based on the option price. It is expressed as a percentage (e.g., IV 30% means an expected movement of 30% annualized). Higher IV means more expensive options, lower IV means cheaper options. Strategies such as Straddle or Strangle react to IV in particular. IV cannot be measured directly, it is calculated using the reverse method from the option price. Option sellers generally profit from a decrease in IV, option buyers profit from an increase in IV.
Optimal conditions
For traders looking for opportunities based on current market volatility (e.g. entering at extremely high or low IV). Suitable for strategies focused on time decay (theta) and volatility change.
Max profit
It does not determine directly, it depends on the chosen option strategy.
Max loss
It does not determine directly, it depends on the chosen option strategy.
Risks
A sudden change in IV (a sudden drop after earnings) can cause significant losses for option buyers. Conversely, selling options at low IV increases the risk of a sharp increase in IV and thus the value of the options being written.
Greeks
Vega (the sensitivity of an option to a change in IV). IV also has an indirect effect on price through delta and gamma.
Variations
IV, HV, implied vs historical. IV Rank (compares IV to its own history), IV Percentile (compares IV to other periods).
Usage example
Higher IV → higher option price, suitable for listing. Low IV → cheap options, suitable for buying.
DTE
IV depends on DTE (closer to expiration often lower IV). Further expirations offer more time for the underlying to change, higher uncertainty of the future development of the underlying price.
IV (implied volatility)
Implied Volatility (IV) is a key parameter for option pricing and entry planning.
Premium
A higher IV increases the option premium, a lower IV decreases the premium.
Margin
The amount of IV affects the required margin - with a high IV, the broker may require a higher margin on option listings due to risk.
Poznámky
A key parameter for correct option pricing and strategy planning. Track IV Rank and IV Percentile to estimate the relative expensiveness/cheapness of options.
Tags
volatility, IV, implied volatility, HV, risk, option price, premium
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