Signal Flags

Options are the signal flags of the market — versatile, precise, and often misunderstood. Used correctly, they generate income, define risk, and enhance returns. Used incorrectly, they destroy accounts with a speed that shocks even experienced captains.

This guide strips away the complexity. No PhD in mathematics required. We cover the three strategies every working captain should know — covered calls, cash-secured puts, and protective puts — plus the Greeks explained in plain English. By the end, you will know when to hoist each flag and when to keep it furled.

Options in One Paragraph

An option is a contract that gives the buyer the right (not obligation) to buy or sell a stock at a specific price by a specific date. The seller (writer) receives a premium and takes on the obligation to fulfill the contract if assigned.

• Call option: Right to buy at the strike price. Bullish.
• Put option: Right to sell at the strike price. Bearish.
• Premium: The price paid for the option. This is the seller's income and the buyer's cost.
• Strike price: The agreed-upon price for the transaction.
• Expiration: The date by which the option must be exercised or it expires worthless.

Strategy 1: Covered Calls — Renting Your Stock

You own 100 shares of a stock. You sell a call option against those shares. You collect premium. If the stock stays below the strike, you keep the premium and your shares. If it rises above, your shares are called away at the strike price.

Best used when: You own a stock you like but believe will trade sideways or rise modestly. You want to generate income from a stagnant position.

Risk: You cap your upside. If ABC rockets to $70, you are forced to sell at $55. You also do not protect against downside — the premium is small relative to a major decline.

Strategy 2: Cash-Secured Puts — Getting Paid to Wait

You sell a put option on a stock you would be happy to own at a lower price. You collect premium. If the stock stays above the strike, you keep the premium. If it falls below, you are assigned the shares at the strike price — effectively buying the stock at a discount.

Best used when: You want to buy a stock but believe it may fall further. You get paid to wait for your entry price.

Risk: If the stock crashes to $20, you are still obligated to buy at $40. The premium is small consolation. Only sell puts on stocks you genuinely want to own long-term.

Strategy 3: Protective Puts — Insurance

You own a stock and buy a put option as insurance. If the stock falls, the put increases in value, offsetting your loss. If the stock rises, the put expires worthless, and you are only out the premium.

Best used when: You own a large position heading into a volatile event (earnings, FDA decision, election). You want to sleep at night.

Risk: Insurance costs money. Repeatedly buying protective puts erodes long-term returns. Use selectively, not permanently.

The Greeks: Reading the Signals

The Greeks measure how sensitive an option's price is to various factors. You do not need to calculate them. You need to understand what they mean.

Greek	Measures	What It Means for Sellers	What It Means for Buyers
Delta	Price sensitivity to stock move	Higher delta = more exposure to stock movement	Higher delta = option behaves more like stock
Theta	Time decay	Your friend — you collect theta daily	Your enemy — you lose value every day
Vega	Sensitivity to volatility	High vega = more premium, but more risk if vol spikes	High vega = you profit if volatility rises
Gamma	Rate of delta change	High gamma = assignment risk near expiration	High gamma = explosive profit potential near expiration

Delta in Plain English

Delta ranges from 0 to 1 for calls, 0 to −1 for puts. A call with 0.50 delta will gain roughly $0.50 for every $1 the stock rises. A put with −0.30 delta will gain roughly $0.30 for every $1 the stock falls.

For income strategies, sell options with delta between 0.15 and 0.30. This means the option has a 15–30% chance of finishing in-the-money. The premium is meaningful, but assignment risk is controlled.

Theta in Plain English

Theta is time decay. Options lose value as expiration approaches — all else equal. The rate of decay accelerates in the final 30 days, and especially in the final 2 weeks.

For income sellers, this is the profit engine. You want to sell options with 20–45 days to expiration (DTE) to capture maximum theta without the gamma risk of weeklies.

Vega in Plain English

Vega measures sensitivity to implied volatility (IV). When IV is high, option premiums are expensive. When IV is low, premiums are cheap.

Sell options when IV is high (you collect more premium). Buy options when IV is low (you pay less). The VIX is a rough proxy for market-wide IV. Above 25 = elevated. Below 15 = compressed.

The Stockhelm Options Rules

Final Word

Options are tools, not toys. In the hands of a disciplined captain, they generate income, reduce risk, and improve sleep. In the hands of a gambler, they accelerate ruin.

Start with covered calls and cash-secured puts. Master these before venturing into spreads, iron condors, or anything exotic. The best options strategy is the one you fully understand before you click submit.

The captain who uses signal flags correctly communicates clearly with every ship in sight. The captain who does not understand them sends confusion into the wind. Know your flags before you hoist them.

Fair winds.