February Office Hours FAQs: Option Pricing, Strategies and Market Mechanics

What does the formula "Call – Put + Strike" represent when evaluating options?

This relationship comes from put-call parity and reflects the forward implied price of the underlying asset. It does not predict where the stock will go. Instead, it reflects how options prices incorporate factors like interest rates, dividends, and the time value of money to imply what the underlying price would be at expiration if current conditions remained unchanged.

Why might put options trade at higher prices than calls at the same strike?

If puts appear significantly more expensive than calls at the same strike and expiration, it can indicate factors affecting put-call parity. These may include dividend expectations, interest rates, corporate actions, or hard-to-borrow conditions in the stock. When prices appear "out of line," it usually means some structural factor is being priced into the options rather than a simple arbitrage opportunity.

How do you choose between a bull call spread and a bull put spread?

Both strategies express a bullish directional view, but they differ in structure. A bull call spread (debit spread) requires paying a premium and maintains the right to exercise the long call. A bull put spread (credit spread) collects premium but takes on the obligation associated with the short put. The choice often depends on factors such as implied volatility levels, risk tolerance, and whether a trader prefers paying premium or collecting it.

If I'm bullish on a stock, should I buy a call or sell a put?

Both positions have similar directional exposure but different risk profiles. Buying a call limits risk to the premium paid. Selling a put generates income but requires the ability to purchase the stock if assigned. At expiration, both positions can result in owning the stock if they finish in-the-money.

Why doesn't a deep in-the-money call spread reach its maximum value long before expiration?

Even if the spread is deep in-the-money, both options may still retain some amount of time premium. A spread reaches its full value only when the long option reflects its full intrinsic value and the short option reflects its full intrinsic value or decays to zero. If there is still significant time remaining until expiration, the short option will retain extrinsic value, preventing the spread from reaching its maximum theoretical value.

What does it mean to "trade around the Greeks"?

When trading options, every position carries exposure to option Greeks. Delta measures directional exposure to the underlying price. Gamma reflects how quickly Delta changes as the underlying moves. Theta represents time decay. Vega measures sensitivity to changes in implied volatility. Understanding these exposures helps traders choose strategies that align with their market outlook and volatility environment.

Why might someone lose money on an option even if the stock moves in the expected direction?

This can occur because implied volatility moves after the trade is entered. If a trader buys options when implied volatility is high and volatility later declines, the loss in option value from the volatility drop can outweigh the gain from the underlying price movement.

How do zero-day-to-expiration (0DTE) options behave differently from longer-dated options?

As options approach expiration, Gamma increases, making the option highly sensitive to price movement. Theta accelerates as time decay increases rapidly. Vega decreases, reducing sensitivity to changes in implied volatility levels. Longer-dated options exhibit the opposite characteristics, with lower Gamma but greater sensitivity to implied volatility changes.

What does "24-5 trading" mean?

"24-5" refers to markets that operate nearly 24 hours a day during the trading week, typically from Sunday evening through Friday evening. Examples include index futures markets, foreign exchange markets, and certain extended-hours equity trading sessions. As markets expand toward continuous trading, it raises new questions about liquidity distribution, risk management, and how clearing systems handle the absence of traditional market opens and closes.

What is after-hours trading and how does it affect options?

Stocks typically close at 4:00 PM Eastern Time, but trading may continue afterward in extended sessions. For American-style options, traders may still have a window after the close to exercise options or submit contrary exercise instructions. Each brokerage firm sets its own cutoff times for these instructions, so traders should confirm those deadlines with their brokerage firm.

How do reverse stock splits affect options contracts?

When a company conducts a reverse split, OCC can adjust the option contract so that the overall economic value remains the same. Changes may include a modified deliverable (fewer shares per contract) or an options symbol change. These adjustments are meant to ensure that option holders are neither advantaged nor disadvantaged by the corporate action.

How do market makers approach options differently than retail traders?

Retail traders often trade specific strategies (spreads, covered calls, etc.). Market makers typically focus on quoting bid-ask prices, managing volatility exposure, and hedging positions dynamically. Rather than targeting specific strategies, market makers primarily manage risk through volatility and Delta hedging.