DeFi

OpenBook

A community-maintained on-chain order book DEX forked from Project Serum after its collapse. OpenBook v2 features a fully on-chain central limit order book (CLOB) with maker/taker fees. It supports limit orders, IOC (immediate-or-cancel), and post-only orders. Many Solana DEXs use OpenBook markets as a liquidity source.

IDopenbookAliasSerum v4

Leitura rápida

Comece pela explicação mais curta e útil antes de aprofundar.

A community-maintained on-chain order book DEX forked from Project Serum after its collapse. OpenBook v2 features a fully on-chain central limit order book (CLOB) with maker/taker fees. It supports limit orders, IOC (immediate-or-cancel), and post-only orders. Many Solana DEXs use OpenBook markets as a liquidity source.

Modelo mental

Use primeiro a analogia curta para raciocinar melhor sobre o termo quando ele aparecer em código, docs ou prompts.

Pense nisso como uma mecânica de mercado usada para precificar, rotear ou mover capital em apps de liquidez.

Contexto técnico

Coloque o termo dentro da camada de Solana em que ele vive para raciocinar melhor sobre ele.

AMMs, roteamento, liquidez, empréstimos e infraestrutura de trading.

Por que builders ligam para isso

Transforme o termo de vocabulário em algo operacional para produto e engenharia.

Este termo destrava conceitos adjacentes rapidamente, então funciona melhor quando você o trata como um ponto de conexão, não como definição isolada.

Handoff para IA

Handoff para IA

Use este bloco compacto quando quiser dar contexto aterrado para um agente ou assistente sem despejar a página inteira.

OpenBook (openbook)
Categoria: DeFi
Definição: A community-maintained on-chain order book DEX forked from Project Serum after its collapse. OpenBook v2 features a fully on-chain central limit order book (CLOB) with maker/taker fees. It supports limit orders, IOC (immediate-or-cancel), and post-only orders. Many Solana DEXs use OpenBook markets as a liquidity source.
Aliases: Serum v4
Relacionados: Order Book (On-Chain), DEX (Exchange Descentralizada)
Glossary Copilot

Faça perguntas de Solana com contexto aterrado sem sair do glossário.

Use contexto do glossário, relações entre termos, modelos mentais e builder paths para receber respostas estruturadas em vez de output genérico.

Explicar este código

Opcional: cole código Anchor, Solana ou Rust para o Copilot mapear primitivas de volta para termos do glossário.

Faça uma pergunta aterrada no glossário

Faça uma pergunta aterrada no glossário

O Copilot vai responder usando o termo atual, conceitos relacionados, modelos mentais e o grafo ao redor do glossário.

Grafo conceitual

Veja o termo como parte de uma rede, não como uma definição sem saída.

Esses ramos mostram quais conceitos esse termo toca diretamente e o que existe uma camada além deles.

Ramo

Order Book (On-Chain)

A trading system that matches buy and sell orders at specified prices, implemented fully on-chain. Unlike AMMs, order books enable limit orders and don't require liquidity pools. Solana's high throughput makes on-chain order books viable. Phoenix uses a FIFO matching engine; OpenBook (Serum v4) uses a crank-based model.

Ramo

DEX (Exchange Descentralizada)

A protocol for trading tokens directly on-chain without a centralized intermediary. Solana DEXs use either AMM pools (Raydium, Orca, Meteora) or on-chain order books (Phoenix, OpenBook). DEXs are composable—aggregators like Jupiter route through multiple DEXs for optimal pricing.

Próximos conceitos para explorar

Continue a cadeia de aprendizado em vez de parar em uma única definição.

Estes são os próximos conceitos que valem abrir se você quiser que este termo faça mais sentido dentro de um workflow real de Solana.

DeFi

Order Book (On-Chain)

A trading system that matches buy and sell orders at specified prices, implemented fully on-chain. Unlike AMMs, order books enable limit orders and don't require liquidity pools. Solana's high throughput makes on-chain order books viable. Phoenix uses a FIFO matching engine; OpenBook (Serum v4) uses a crank-based model.

DeFi

DEX (Exchange Descentralizada)

A protocol for trading tokens directly on-chain without a centralized intermediary. Solana DEXs use either AMM pools (Raydium, Orca, Meteora) or on-chain order books (Phoenix, OpenBook). DEXs are composable—aggregators like Jupiter route through multiple DEXs for optimal pricing.

DeFi

Oracle Staleness

The condition where an oracle price feed has not been updated within an acceptable time window, making the price data potentially unreliable. Stale prices can lead to incorrect liquidations, mispriced trades, or exploitable arbitrage. Solana DeFi protocols must check the timestamp of oracle updates and reject or pause operations when prices exceed a staleness threshold (e.g., 30 seconds for Pyth feeds).

DeFi

Open Interest

The total value or number of outstanding derivative contracts (perpetuals, options) that have not been settled or closed. Open interest increases when new positions are opened and decreases when positions are closed. High open interest indicates active market participation and can signal strong conviction. Perps platforms use open interest caps to manage protocol risk exposure.

Comumente confundido com

Termos próximos em vocabulário, sigla ou vizinhança conceitual.

Essas entradas são fáceis de misturar quando você lê rápido, faz prompting em um LLM ou está entrando em uma nova camada de Solana.

DeFiorca

Orca

A leading Solana DEX focused on concentrated liquidity through its Whirlpool AMM. Orca emphasizes user experience and capital efficiency. Whirlpools allow LPs to set custom price ranges. Orca is a major liquidity source for Jupiter aggregation. It uses a tick-based CLMM similar to Uniswap v3 adapted for Solana's architecture.

Termos relacionados

Siga os conceitos que realmente dão contexto a este termo.

Entradas de glossário só ficam úteis quando estão conectadas. Esses links são o caminho mais curto para ideias adjacentes.

DeFiorder-book

Order Book (On-Chain)

A trading system that matches buy and sell orders at specified prices, implemented fully on-chain. Unlike AMMs, order books enable limit orders and don't require liquidity pools. Solana's high throughput makes on-chain order books viable. Phoenix uses a FIFO matching engine; OpenBook (Serum v4) uses a crank-based model.

DeFidex

DEX (Exchange Descentralizada)

A protocol for trading tokens directly on-chain without a centralized intermediary. Solana DEXs use either AMM pools (Raydium, Orca, Meteora) or on-chain order books (Phoenix, OpenBook). DEXs are composable—aggregators like Jupiter route through multiple DEXs for optimal pricing.

Mais na categoria

Permaneça na mesma camada e continue construindo contexto.

Essas entradas vivem ao lado do termo atual e ajudam a página a parecer parte de um grafo maior, não um beco sem saída.

DeFi

AMM (Formador de Mercado Automatizado)

A protocol that enables token swaps using algorithmic pricing against pooled liquidity instead of matching individual buyers and sellers. AMMs use mathematical formulas (typically constant product x*y=k) to determine prices based on the ratio of tokens in a liquidity pool. On Solana, major AMMs include Raydium, Orca, and Meteora.

DeFi

CLMM (Concentrated Liquidity Market Maker)

An AMM design where liquidity providers concentrate their capital within specific price ranges instead of across the full 0-to-infinity range. CLMMs dramatically improve capital efficiency—LPs earn more fees per dollar deposited within their active range. If the price moves outside the range, the position becomes inactive. Orca Whirlpools and Raydium CLMM are leading implementations on Solana.

DeFi

Pool de Liquidez

A smart-contract-held reserve of two or more tokens that enables trading via an AMM. Users deposit token pairs in specified ratios to become liquidity providers and earn trading fees. Pools are identified by their token pair and fee tier. Pool depth (total value locked) determines price impact for trades.

DeFi

LP Token

A token issued to liquidity providers representing their proportional share of a pool's reserves and accrued fees. LP tokens can be burned to withdraw the underlying assets. The value of LP tokens changes as the pool's token ratios shift and fees accumulate. LP tokens are often stakeable in yield farming programs for additional rewards.