Educational content, not investment advice. Crypto-asset values fluctuate.

Modulis 5 · Options
7/11

Covered Call — income from the upside

What is a Covered Call?

A Covered Call is when you sell a Call option on an asset you already own. You receive money (the premium), but you agree to sell the asset if the price rises very high.

A simple analogy

Imagine you own a car worth $10,000. You agree with a neighbor: "If someone offers $20,000 within 4 months — I'll sell it to you." The neighbor pays you $200 for this right. If nobody offers $20,000 — you keep the $200 and the car. If someone does offer it — you sell for $20,000, but you don't get anything above that. And if the car loses value — that $200 doesn't cancel out the drop: a Covered Call generates income, not protection.

"Covered" means you already own that asset. You're not speculating — you're simply earning extra from what you already hold.

Once you understand this, it becomes possible to choose for yourself the price at which you'd agree to sell, and earn premium up to that point from an asset you'd otherwise just be holding.

$0$160entry $88kaina aukštyn →pelnas ▲nuostolis ▼Covered Call (SOL + sold Call $160)

The chart shows the result for one SOL: up to $160 the profit grows the same as holding SOL, plus you get the $2 premium (which is why the breakeven drops to $86 instead of $88). Above $160 the profit "locks in" (you have to sell for $160) — but that's already about an 82% rise from $88.

Why is the strike 2x the current price?

In our strategy we use a very high strike — almost double the current price ($160 at $88 = 1.8x):

Why double the price instead of a closer strike?

StrikePremiumProbability of having to sellDoes it make sense?
$100 (+14%)$8.00~35%Too high a probability of losing the SOL
$120 (+36%)$4.50~20%Still a fair chance
$160 (+82%)$2.00~8%Low probability — this works for us
$200 (+127%)$0.80~3%Too little premium

The $160 strike is a good balance. You earn enough, but it's very unlikely SOL doubles within 120 days.

The premium lowers the cost of insurance

The Covered Call premium directly reduces the Put Spread's cost:

Insurance gets 20% cheaper ($100 out of $500). Over a year that's about $1,200 — three 120-day cycles at $400 each.

What happens if SOL reaches $160?

If the SOL price rises to $160 and the Call is exercised:

That's a good result!

An important technical detail: SOL isn't physically handed over

Deribit options are European-style and cash-settled — at exercise, nobody takes your SOL out of your wallet. Instead you pay the difference between the final price and the strike. Economically the result is the same as selling 50 SOL for $160, which is why we calculate it that way — but the SOL physically stays with you, and "selling" is shorthand.

Why only part of the position?

The Call is sold on only 50 SOL out of 126 (~40% of the SOL position):

ReasonExplanation
Upside potentialWe don't want to cap the whole portfolio's growth
Collateral requirementsDeribit requires margin
Balance~40% = enough premium, while the remaining 76 SOL grows with no cap
LiquidityA smaller amount is easier to close

Covered Call vs Naked Call

It's important to understand the difference:

Covered Call (you hold SOL)Naked Call (no SOL held — risky!)
Do you hold SOL?Yes (126 SOL)No
Maximum lossForegone profit above the strikeUnlimited
Risk levelLow-mediumVery high

Our strategy's rules

RuleDetail
Strike~2x current price (in our case $160 at $88 = 1.8x)
QuantityAt most ~40% of the SOL position (in our case 50 out of 126 SOL)
Duration120 days (same cycle as the Put)
Rolled?NO — let it expire
If exercised?Accept it — it's a good result

The Call premium as income

Note: that ~$90 in theta and the $100 premium are not two separate amounts. You get the premium right away, and theta shows how that same premium is "earned" day by day as the option loses value toward zero. In total, this leg can give you no more than $100.

When a Covered Call doesn't work

Next step: Let's look at how to manage the whole options cycle — when to roll the Put, what to do when the Call expires.

Quick check
Why is a Covered Call called covered?
Practice task
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Paper Covered Call plan

The core of a Covered Call — premium for a promise to sell high. Calculate it for your hypothetical position (~15 min). Everything on paper only, no trading.

We're learning to calculate, NOT to trade — DON'T SELL ANYTHING. A real Short Call without holding the underlying (naked) carries unlimited risk, so we start on paper.

This is learning, not investing — use only small amounts you treat as tuition.

You just planned out a Covered Call on your hypothetical position — the premium and the worst case. Most people never do this.