Studio Aletheia · The Aletheian Investments and Trading Institute
Options Trading
Trading Lab 101 · Lesson 9
Options trading adds a new dimension beyond simply owning a stock. Today you study how call and put contracts work, how strike price and premium define risk, and how the Greeks, Delta, Gamma, Theta, and Vega, shape an option's value as price, time, and volatility change.
Learning Targets and Success Criteria
Build the vocabulary and judgment needed to understand what you are buying, not just which direction you hope the stock moves.
What I will learn
- I can explain how options work and use the Greeks to understand how option prices change.
- I can distinguish a call option from a put option and describe when a trader might use each.
- I can explain how strike price, premium, and expiration define an options contract.
- I can design a full options trade, including a risk and exit plan tied to price, time, and volatility.
What success looks like
- I state a clear directional belief and match it to a call, put, or spread.
- I define strike price and premium accurately for my scenario.
- I explain how Delta, Gamma, Theta, or Vega affects my trade as conditions change.
- My plan uses today's vocabulary, call option, put option, strike price, premium, and the Greeks, with accuracy.
The language of today's session.
These five terms carry through the reading, the Options Blueprint, and the trading session that follows.
Call Option
The right to buy a stock at a specific price, the strike, before expiration.
Put Option
The right to sell a stock at a specific price before expiration.
Strike Price
The price at which the option can be exercised.
Premium
The cost of purchasing the option contract.
The Greeks
A set of metrics, Delta, Gamma, Theta, Vega, and Rho, that measure how sensitive an option is to price, time, volatility, and interest rates.
Reading The Contract
Options trading rewards traders who understand what they are buying, not just which direction they hope the stock moves.
Options trading involves contracts that give traders the right, but not the obligation, to buy or sell a stock at a set price before a certain date. Instead of owning shares directly, an options trader controls a contract that is linked to the stock's price.
Options create flexibility. Traders can use them to speculate on price direction, hedge an existing position, or generate income. For example, a trader might buy a call option if they expect a stock to go up, or buy a put option if they fear a big drop.
Options also introduce elements that do not exist in simple stock trading. The value of an option is shaped by these forces:
- Time Decay (Theta): every option has an expiration date, and its time value slowly melts away as time passes, even if the stock does not move.
- Volatility (Vega): options become more expensive when big moves are expected and cheaper when the market is calm.
- Delta: measures how much the option price moves when the stock price changes by one dollar.
- Gamma: shows how quickly Delta itself can change as the stock moves.
Because options are leveraged instruments, small movements in the stock price can lead to large percentage gains or losses. This leverage makes options powerful, but it also demands strong risk management and a clear plan.
Scenario: A CloudCore Earnings Call Option
CloudCore, a major tech firm, is about to release earnings. A trader believes the results will be stronger than the market expects. Instead of buying 100 shares of CloudCore, they choose to buy a call option with a strike price slightly above the current market price.
When earnings beat expectations, the stock gaps up sharply at the open. Because the call option controls 100 shares with a relatively small up-front cost, the premium, its value increases much faster, in percentage terms, than the stock itself.
The trader can now sell the call option for a significant profit, even though they never owned the actual shares. In this example, they used options to express a bullish view while risking less capital, letting Delta, Vega, and the surprise move work in their favor. The same ideas carry into other strategies too: volatility shows up in day trading, momentum trading, and futures, while hedging is a core tool in futures trading and position trading.
Materials for the session.
- A. A directional view on the stock, up, down, or neutral
- B. A defined strike price and expiration date
- C. Notes on Delta and Gamma for your position
- D. Notes on Theta and Vega for your position
- E. A risk and exit plan tied to price, time, or volatility
Every options trade: match the strategy to the view, respect time decay and volatility, and know the exit before you pay the premium.
The Options Blueprint
Map a full options trade end to end, from directional belief and strategy choice to the Greeks and your exit plan.
The Trading Session
Trace the five moves an options trader makes, from forming a view to exiting the contract.
Trader's Journal
Accountability Checklist
What is a premium, and what can make it increase?
Every option has a cost to enter. Define premium and explain one factor that can increase it. Use the word volatility in your answer.