> For the complete documentation index, see [llms.txt](https://candora.gitbook.io/whitepaper/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://candora.gitbook.io/whitepaper/candora-pro/slippage-protection.md). # Slippage Protection Slippage Protection is an execution-protection feature within [Candora Pro](/whitepaper/candora-pro.md) designed to reduce the financial impact of adverse slippage on market orders. When enabled, Candora estimates an expected execution outcome before an order enters the market and establishes a protection boundary based on prevailing liquidity and volatility conditions. Orders continue to execute normally through [Orbit](/whitepaper/candora-grid/orbit.md) under standard matching logic without changes to priority, routing behavior, queue position, or execution sequencing. If realized execution exceeds the protected boundary, Candora may compensate the protected portion of the slippage according to the active protection terms. Slippage Protection is optional, enabled per order, and settled in CAN. The objective is not to eliminate slippage or guarantee execution prices. The objective is to reduce the impact of unexpected execution drift while preserving participation in live market conditions. ### How Slippage Protection works Before a protected order enters the market, Candora estimates an expected execution price using a projected execution-path model derived from current market conditions. This estimate incorporates: * visible liquidity depth * spread conditions * quote stability * projected market impact * order size * short-horizon volatility The resulting estimate represents the expected average execution outcome under prevailing market conditions. A dynamic protection boundary is then established around that expected execution price using real-time volatility measurements and system-defined risk parameters. For buy orders: ``` P_bound = E[P] + kσ_t ``` For sell orders: ``` P_bound = E[P] - kσ_t ``` Where: * `E[P]` represents the expected execution price * `σₜ` represents short-horizon realized volatility * `k` represents a dynamic risk coefficient determined by prevailing market conditions and system policy This creates a volatility-adjusted protection envelope that expands or contracts according to current market stability and liquidity conditions. Once calculated, the order is released into the market and executes normally through Orbit. ### Compensation model After execution completes, Candora calculates the realized average execution price `P_r` and compares it against the protection boundary. Compensation applies only to the portion of adverse execution that exceeds the protected boundary. For buy orders, compensation may apply when: ``` P_r > E[P] + kσ_t ``` For sell orders, compensation may apply when: ``` P_r < E[P] - kσ_t ``` If execution remains within the protected boundary, no adjustment occurs. Favorable execution outcomes remain entirely with the user and never trigger adjustment logic. Protection therefore operates as a post-execution settlement mechanism rather than as an execution restriction. The order always participates in the live market under normal conditions. ### Relationship to traditional execution controls Traditional slippage tolerance settings primarily function as execution filters. If market movement exceeds the configured threshold, execution may fail entirely. Limit orders provide explicit price boundaries but introduce execution uncertainty, partial fills, missed entries, and adverse selection risk during unstable market conditions. Slippage Protection does not replace these mechanisms. It introduces bounded post-trade compensation while preserving normal market-order execution behavior and execution continuity. ### Dynamic protection framework Market conditions are not static, and protection parameters adapt accordingly. The protection model continuously evaluates: * market volatility * liquidity availability * order-book stability * liquidity fragmentation * projected market impact * aggregate exposure to protected orders As market conditions become more unstable, protection boundaries, pricing, and coverage parameters may adjust automatically to reflect the changing risk environment. This dynamic framework allows protection to remain responsive across a wide range of market conditions while maintaining sustainable operation. ### Protection capacity Slippage Protection operates against a finite protection capacity pool governed by system-wide exposure controls. As protected-order exposure increases, coverage boundaries, pricing, availability, and compensation capacity may adjust automatically to preserve long-term sustainability. During periods of elevated volatility, abnormal liquidity conditions, or unusually large protection demand, protection coverage may be reduced, repriced, capped, or temporarily suspended. These controls are designed to prevent localized execution shocks from creating unbounded protection obligations during stressed market conditions. ### What Slippage Protection does not do Slippage Protection is designed to reduce adverse execution drift, not eliminate market risk. The feature does not: * guarantee execution prices * eliminate slippage entirely * guarantee favorable fills * prevent adverse market movement * override market structure * alter participant priority * modify queue placement * influence fill probability * change deterministic execution sequencing Protection effectiveness remains dependent on market conditions, liquidity availability, execution behavior, and the accuracy of execution-path estimates. Large orders relative to available liquidity may experience reduced protection efficiency or higher protection costs. ### Relationship to other Candora Pro features Slippage Protection operates alongside other Candora Pro protection and intelligence systems. * [Liquidity Mirror](/whitepaper/candora-pro/liquidity-mirror.md) focuses on liquidity interpretation and market-structure analysis * [Anti-Spoof](/whitepaper/candora-pro/anti-spoof.md) evaluates the behavioral reliability of displayed liquidity * [Order Shield](/whitepaper/candora-pro/order-shield.md) validates stop-trigger quality before order release * [Panic Button](/whitepaper/candora-pro/panic-button.md) coordinates emergency exposure reduction and settlement handling Slippage Protection focuses specifically on reducing the impact of adverse execution drift after matching has occurred. Each system operates independently and addresses a different aspect of market participation and risk management. ### Execution neutrality Slippage Protection does not influence how orders are processed within the exchange. Protected and unprotected orders enter the identical execution path and are processed under the same matching rules. Protection status affects only post-execution settlement outcomes and never influences matching priority, queue placement, fill probability, routing behavior, participant treatment, or execution sequencing within Orbit. This preserves Candora's execution-neutrality principles while providing participants with an additional layer of optional execution-risk management.