March Office Hours FAQs: Option Pricing, Greeks, and Market Dynamics

Why use a spread instead of a single option?

Spreads allow traders to define risk. For example, a bear call spread expresses a bearish view while capping potential losses by purchasing a higher strike call. While this limits maximum profit, it provides protection if the market moves unexpectedly.

Do options need to be held until expiration?

No. Traders can close positions at any time to realize gains, manage risk, or avoid assignment. In practice, most options positions are closed before expiration rather than exercised.

What does it mean to hedge using Delta?

Delta measures how an option's value changes with movements in the underlying asset. Traders can offset directional exposure by taking an opposing position in stock or other options. Because Delta changes as the underlying moves (Gamma), maintaining a neutral position requires ongoing adjustments.

Are spreads neutral to volatility?

Not necessarily. While spreads are contract neutral, they still carry exposure to implied volatility. Debit spreads tend to benefit from rising volatility, while credit spreads generally benefit when volatility declines.

What determines implied volatility?

Implied volatility reflects supply and demand in the options market. When demand for options increases, prices rise, and implied volatility increases accordingly.

How does time decay impact options?

Time decay (Theta) reduces an option's value as expiration approaches. This effect accelerates in short-dated options, particularly 0DTE contracts, where time value can decline rapidly within a single trading day.

Why do Gamma and Theta increase near expiration?

As expiration nears, at-the-money options become highly sensitive to price movement. As Gamma increases, Delta shifts more rapidly, while Theta accelerates as remaining time value approaches zero.

Can options trading impact stock prices?

Large option trades can influence the underlying stock. When market makers hedge their exposure—often by buying or selling shares—this activity can contribute to price movement.

What is open interest?

Open interest represents the number of outstanding option contracts. It increases when new positions are opened and decreases when positions are closed. High open interest at certain strikes can influence trading activity, especially near expiration.

What role do market makers play?

Market makers provide continuous liquidity by quoting bid and ask prices. Rather than taking directional views, they focus on managing risk and capturing small pricing differences while dynamically hedging their positions.

How do dividends affect options?

Regular dividends are typically reflected in option pricing and do not change contract terms. However, special dividends may result in adjustments—such as changes to strike prices or deliverables—to maintain the contract's economic value.

How do traders approach high volatility?

When implied volatility is elevated, traders may use defined-risk strategies—such as credit spreads, iron condors, or iron butterflies—to collect premium while limiting potential losses. Strategy selection ultimately depends on market outlook and risk tolerance.