How DeFi Options Trading Works (and Where Katana Fits)

Théodore Lefevre
July 14, 2025
951 Views
DeFi options trading explained with calls, puts and strike prices

DeFi options trading works through smart contracts that let you buy or sell the right to trade a crypto asset at a set price on a set date, with collateral locked and payouts settled on-chain instead of by a broker. Katana.so is not an options platform. It is an independent guide site, and Katana Network’s core apps do not include an options venue as of September 2026.

Key takeaways

  • An option gives the buyer a right, not an obligation: a call to buy or a put to sell at the strike price.
  • Buyers pay a premium up front. Sellers post collateral and keep the premium if the option expires worthless.
  • On-chain options venues lock collateral in smart contracts and settle automatically at expiry, usually in cash.
  • The main risks are smart contract bugs, thin liquidity, gas costs and options expiring worthless.
  • Katana Network’s official apps cover spot trading, lending and perpetual futures, with no options protocol listed.

What is a crypto option?

A crypto option is a contract on an underlying asset such as ETH or BTC. These terms define every option (the example figures are illustrative):

Term Meaning Example
Call The right to buy the asset at the strike price ETH call with a $4,000 strike
Put The right to sell the asset at the strike price ETH put with a $3,000 strike
Strike The price the option is measured against at expiry $4,000
Expiry When the option stops trading and settles Last Friday of the month
Premium What the buyer pays the seller for the option $120 per ETH call

A call gains value when the asset rises above the strike. A put gains value when the asset falls below it. If the option finishes out of the money, the buyer loses the premium and nothing more.

How does on-chain options trading work?

On a decentralized options venue, smart contracts handle the whole trade:

  1. Connect a self-custody wallet. Your funds stay under your control until they are locked for a position.
  2. Pick a market. Choose the underlying asset, call or put, strike and expiry.
  3. Pay the premium or post collateral. Buyers pay the premium, which the contract locks. Sellers post collateral, and margin requirements are enforced automatically.
  4. Manage the position. Close early by selling the option back to the market, or hold it to expiry.
  5. Settle at expiry. The contract compares the strike with a settlement price and sends any profit to your wallet.

Derive, an on-chain options exchange, explains that collateral is locked automatically when you open a position and that in-the-money options pay out directly to the trader’s wallet at expiry. Many venues settle against an average price over a short window, such as a time-weighted average price (TWAP), rather than a single trade, which makes last-second manipulation harder.

Trader reviewing an Ethereum price chart before choosing an options strike
Strike and expiry choices start with the underlying asset’s price chart.

How are DeFi options different from centralized options?

Feature DeFi options Centralized exchange options
Custody You keep control through a wallet or contract The exchange holds your deposit
Settlement Automatic, by smart contract Handled by the exchange
Access Any compatible wallet Account sign-up and identity checks
Liquidity Usually thinner, with wider spreads Usually deeper
Costs Trading fees plus network gas Trading fees
Support Documentation and community channels Customer support desk

What is the difference between European and American options?

European options can only be exercised at expiry. American options can be exercised at any time before expiry. Most on-chain crypto options are European and cash-settled, which keeps settlement simple for smart contracts. Check the style before you trade, because it changes when you can take profit.

Who sells options in DeFi?

Every option bought has a seller, called a writer. In DeFi the writer is usually one of three things:

  • Individual traders who post collateral and sell calls or puts to collect premium.
  • Options vaults that pool deposits and run a fixed strategy, such as selling covered calls every week.
  • Market makers that quote prices on an order book or through an automated market maker.

Writers earn the premium but carry the risk. A covered call writer gives up gains above the strike, and a put writer absorbs the loss if the price falls well below the strike.

What are the risks of DeFi options trading?

  • Losing the premium. Options bought far out of the money frequently expire worthless.
  • Smart contract risk. A bug or exploit can drain collateral, even on audited protocols.
  • Liquidity risk. Thin markets mean wide spreads and trouble closing early.
  • Oracle and settlement risk. A faulty price feed can settle an option at the wrong price.
  • Gas costs. Network fees eat into small positions.
  • Liquidation for writers. Short positions without enough margin can be closed at a loss.

Does Katana offer options trading?

No. Neither Katana Network nor Katana.so offers options trading as of September 2026.

  • Katana Network is a DeFi-focused Ethereum Layer-2 with chain ID 747474. Its official documentation lists Sushi for spot trading, Morpho for lending and Katana Perps for perpetual futures, which launched in March 2026. No options venue is listed.
  • Katana DEX on the Ronin network is a spot exchange for swapping tokens such as RON, AXS and SLP. See how to swap on Katana DEX.
  • Katana.so is an independent guide site with no trading, no wallet connection and no token. Anything advertised as “Katana.so options” is not us.

Perpetual futures are the closest leveraged product on Katana, but they work differently from options:

Feature Buying an option Trading a perpetual future
Expiry Fixed date None
Upfront cost Premium Margin
Maximum loss The premium paid The full margin posted, through liquidation
Ongoing payments None Periodic funding payments

Learn how the chain works in our Katana Network guide, and run through our Katana safety checks before you connect a wallet anywhere.

Frequently asked questions

How does DeFi options trading work?

You connect a wallet to an on-chain options venue, choose a call or put with a strike and expiry, and pay a premium. Smart contracts lock collateral and settle the option automatically at expiry.

Is Katana.so an options trading platform?

No. Katana.so is an independent guide site about Katana Network and Katana DEX. It does not offer trading of any kind.

Can you trade options on Katana Network?

Not through Katana’s core apps. As of September 2026 the official documentation lists Sushi, Morpho and Katana Perps, with no options protocol.

What can you lose when buying a crypto option?

As a buyer, the most you can lose is the premium you paid, plus fees and gas. Sellers can lose more because they must pay out if the option finishes in the money.

Are DeFi options safer than centralized options?

They remove exchange custody risk but add smart contract, oracle and liquidity risk. Neither is risk-free.

Updated September 2026. An earlier version of this page wrongly described Katana.so as a Solana options protocol with its own fees and features. None of that existed, and the page has been rewritten.

This guide is for education only and is not financial advice.

Author Théodore Lefevre

Theodore Lefevre is a markets writer at Katana.so covering crypto news, price analysis, and emerging tokens. He tracks the data behind the headlines to help readers separate signal from hype.