Why buy options at all? Insurance vs leverage

On a screen, every option purchase looks the same: pay premium, get the right. But the buyers come from two completely opposite mental models. Confusing them is the source of half the misunderstandings about derivatives.

Reason 1 — Insurance: protect existing exposure

You own €1M of equities. You're worried about a 20% drawdown but you don't want to sell. Buy a 6-month put at a strike 90% of spot. You've capped your downside at −10%, and you keep all the upside.

Cost: a few percent of nominal. Same logic as paying car insurance — you accept a small certain cost to protect against an uncertain large one. Pension funds, treasurers, family offices buy options this way constantly. They don't care if the put expires worthless — that means nothing went wrong.

This is the use case Black, Scholes, and Merton had in mind. The original Black-Scholes paper was titled "The Pricing of Options and Corporate Liabilities" — Merton showed that an entire firm's capital structure could be priced as a portfolio of options.

Reason 2 — Leverage: amplify a directional bet

You think Tesla is going to rip 30% in three months. Two ways to act:

• Buy the stock. €100k of stock → if Tesla rallies 30%, you make €30k. If it drops 30%, you lose €30k.
• Buy ATM calls instead. €5k of premium controls roughly the same notional exposure. If Tesla rallies 30%, you might 5x your €5k. If Tesla drops 30%, you lose only the €5k premium.

Same view, but the option version: capped downside, leveraged upside. This is why retail traders, hedge funds, and gamblers buy options. They don't care about insurance — they're placing a directional bet with limited downside.

Why this matters for risk

For an insurance buyer, the success metric is "was I protected during the crash?" The premium paid is irrelevant if the protection was there when needed. Backtesting an insurance strategy looks at downside reduction, not return-on-premium.

For a leverage buyer, every premium paid is a dent in P&L. If the bet doesn't pay off, the premium is dead money. Backtesting a leverage strategy looks at directional accuracy and timing.

These two mindsets need different option strategies:

• Insurance: long-dated, OTM, reasonable size — minimize theta drag while keeping coverage.
• Leverage: short-dated, ATM or slightly OTM, big size — maximize delta-per-euro at the cost of high theta.

Mixing them up — buying short-dated OTM options as "insurance", or long-dated ATM options for "leverage" — is suboptimal in both directions. Know which game you're playing.