An option is a contract granting the right – but not the obligation – to buy or sell an asset at a fixed price. This section covers options from first principles up through the fully-collateralized, on-chain derivatives Bitsy builds: cash-backed synthetic options.

The pages divide into four layers, each building on the one before.

Fundamentals#

The vocabulary every other page assumes: the option type distinction (call vs. put), the strike price, and the pricing sensitivities – implied volatility and the option Greeks. Volatility itself is treated as a general DeFi concept and lives at the DeFi top level.

Spreads and Strategies#

Multi-leg structures that combine options to shape a payoff curve: the option spread in general, the vertical spread specifically, the expiry-free perpetual option, the notion of a risk-defined strategy, and how all of these can be emulated with DeFi primitives such as concentrated liquidity-pool positions.

Directional Bets#

The user-facing products: bull bets and bear bets, and the four spreads they package – bull call, bull put, bear call, and bear put.

Cash-Backed Synthetic Options#

Bitsy’s core derivative: the cash-backed synthetic option (CBSO), its smart-contract design, and the innovative claims it makes – full collateralization, no margin calls, and settlement in volatile currencies.

Wiki Pages#

Option Type
Call Option
Put Option
Strike Price
Implied Volatility
Option Greeks
Option Spread
Vertical Spread
Perpetual Option
Emulating Option Strategies in DeFi
Risk-Defined Strategy
Bear Bet
Bull Bet
Bear Call Spread
Bear Put Spread
Bull Call Spread
Bull Put Spread
Cash-Backed Synthetic Option
Cash-Backed Synthetic Options Design
Innovative Claims of CBSOs