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Options Trading Basics: Calls, Puts, and Core Strategies

Created: March 10, 2026 CalmOps 6 min read

Introduction

Options are versatile financial instruments that give the right (but not obligation) to buy or sell assets at specific prices. While often considered speculative, options serve important purposes for investors: income generation, protection, and precise risk management.

This guide covers options fundamentals, core strategies, and practical considerations for investors interested in incorporating options into their approach.

What Are Options?

Definition

An option is a contract that gives the holder the right, but not the obligation, to buy or sell an underlying asset at a specific price before a specific date.

Key Terms

Call Option: Right to BUY the underlying asset Put Option: Right to SELL the underlying asset

Strike Price: The price at which the option can be exercised Expiration Date: When the option expires Premium: The price paid for the option Underlying: The asset the option is based on (usually a stock)

Options vs. Stocks

Feature Stocks Options
Ownership You own the asset You control the right to asset
Capital required Full price Premium only
Risk 100% loss possible Limited to premium
Leverage None Significant
Time component None Yes (decay)

Call Options

Understanding Calls

A call option gives you the right to BUY the underlying stock at the strike price.

Long Call (Buying a call):

  • Bullish strategy
  • Profit when stock rises above strike + premium
  • Maximum loss: Premium paid
  • Breakeven: Strike price + Premium

Call Example

Scenario:

  • Stock: $100
  • Call option (strike $105, expires in 30 days): $2 premium
  • Cost: 100 shares × $2 = $200

Outcomes:

Stock rises to $120:

  • Exercise option, buy at $105
  • Profit per share: $120 - $105 = $15
  • Total profit: $15 × 100 = $1,500
  • Return: $1,500 - $200 = $1,300 (650%)

Stock stays at $100:

  • Option expires worthless
  • Loss: $200 (100%)

Stock falls to $80:

  • Option expires worthless
  • Loss: $200 (100%)

Writing Covered Calls

A covered call involves selling (writing) a call while owning the underlying stock.

Purpose: Generate income (receive premium) Risk: Stock called away if above strike Breakeven: Stock price - Premium received

Put Options

Understanding Puts

A put option gives you the right to SELL the underlying stock at the strike price.

Long Put (Buying a put):

  • Bearish strategy
  • Profit when stock falls below strike - premium
  • Maximum loss: Premium paid
  • Breakeven: Strike price - Premium

Put Example

Scenario:

  • Stock: $100
  • Put option (strike $95, expires in 30 days): $2 premium
  • Cost: 100 shares × $2 = $200

Outcomes:

Stock falls to $80:

  • Exercise option, sell at $95
  • Profit per share: $95 - $80 = $15
  • Total profit: $15 × 100 = $1,300
  • Return: $1,300 - $200 = $1,100 (550%)

Stock stays at $100:

  • Option expires worthless
  • Loss: $200 (100%)

Stock rises to $120:

  • Option expires worthless
  • Loss: $200 (100%)

Protective Puts

A protective put involves buying a put while owning the underlying stock.

Purpose: Insurance against downside Cost: Premium paid Benefit: Unlimited upside, limited downside

Options Pricing

Intrinsic Value

The value if exercised immediately:

  • Call: Stock Price - Strike Price (if positive)
  • Put: Strike Price - Stock Price (if positive)

Time Value

The value from time remaining:

  • More time = more time value
  • Options lose time value as expiration approaches
  • Time decay accelerates in final weeks

Factors Affecting Price

  1. Stock price: Higher stock = higher call, lower put
  2. Strike price: Higher strike = lower call, higher put
  3. Time to expiration: More time = higher premium
  4. Volatility: Higher volatility = higher premiums
  5. Interest rates: Higher rates = slightly higher calls

Basic Options Strategies

1. Covered Call

Setup: Own stock, sell call Goal: Generate income Risk: Limited upside

Example:

  • Own 100 shares at $50
  • Sell $55 call for $2
  • Max profit: $5 + $2 = $7 per share
  • Stock called if above $55

2. Protective Put

Setup: Own stock, buy put Goal: Insurance Cost: Premium paid

Example:

  • Own 100 shares at $50
  • Buy $45 put for $1
  • Max loss: $5 + $1 = $6 per share
  • Unlimited upside

3. Cash-Secured Put

Setup: Sell put, hold cash to cover Goal: Acquire stock at lower price or earn premium

Example:

  • Stock at $50
  • Sell $45 put for $1
  • Keep premium if stock stays above $45
  • Buy stock at $45 if assigned

4. Bull Call Spread

Setup: Buy call, sell higher strike call Goal: Bullish with limited risk

Example:

  • Buy $50 call for $3
  • Sell $55 call for $1
  • Net cost: $2
  • Max profit: $5 - $2 = $3 per share

5. Bear Put Spread

Setup: Buy put, sell lower strike put Goal: Bearish with limited risk

Options Terminology

In the Money (ITM):

  • Call: Stock > Strike
  • Put: Stock < Strike

At the Money (ATM):

  • Stock ≈ Strike

Out of the Money (OTM):

  • Call: Stock < Strike
  • Put: Stock > Strike

Expiration:

  • Last day to exercise
  • Weekly, monthly, quarterly options available

Assignment: When option is exercised Exercise: Using the option right

Risks of Options

For Buyers

  1. Time decay: Options lose value over time
  2. Total loss: Can lose 100% of premium
  3. Leverage risk: Large percentage swings

For Sellers (Writers)

  1. Unlimited loss (uncovered calls)
  2. Assignment risk: May need to deliver shares
  3. Margin requirements: Tied-up capital

Key Risks

  • Leverage: Amplifies gains AND losses
  • Complexity: More variables than stocks
  • Liquidity: Some options have wide bid/ask spreads
  • Timing: Must be right on direction AND time

Getting Started with Options

Requirements

  1. Approved for options trading: Most brokers require application
  2. Margin account: For selling options
  3. Capital: Enough to meet margin requirements
  4. Knowledge: Understand before trading

Starting Strategy

  1. Covered calls: Generate income on stocks you own
  2. Protective puts: Insure large positions
  3. Cash-secured puts: Collect premium while waiting

Paper Trading

Practice with virtual trading:

  • Learn platform mechanics
  • Test strategies risk-free
  • Build confidence

When to Use Options

Appropriate Uses

  • Income generation: Covered calls in sideways markets
  • Protection: Protective puts before events
  • Entry: Use puts to get stock at lower price
  • Defined risk: Know maximum loss in advance

When to Avoid

  • Speculation without understanding
  • Trading size you can’t afford to lose
  • Ignoring time decay
  • Uncovered positions without proper capital

Tax Considerations

Taxation of Options

  • Holding < 1 year: Short-term capital gains
  • Holding > 1 year: Long-term capital gains
  • Premium received: Ordinary income when kept
  • Assignment: Creates taxable event

Special Rules

  • Wash sales: Apply to options
  • Section 1256 contracts: 60/40 split (some options)
  • AMT: May affect alternative minimum tax

Conclusion

Options are powerful tools that can enhance returns, generate income, and manage risk. However, they require:

  1. Understanding: Know what you’re trading
  2. Discipline: Stick to strategies you understand
  3. Risk management: Never risk more than you can afford
  4. Patience: Time works against option buyers

Start with simple strategies like covered calls and protective puts before attempting more complex trades. Remember that leverage cuts both ways—options can multiply gains but also accelerate losses.

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