Binance Adds Last Price Protection to BULLA Perpetual Contract
Binance will enable Last Price Protection (LPP) for its USDT-margined BULLA perpetual contract at 14:00 UTC+8 on 28 October 2026. The exchange cited price discrepancies in BULLA spot markets across multiple exchanges and restrictions on deposits and withdrawals.
Under LPP, Binance will gradually adjust the mark price, calculating it from the contract’s average latest traded price within specified limits. The measure applies to the BULLA perpetual contract while spot prices remain fragmented. Binance said it will end LPP and announce a return to its standard mark-price calculation once spot prices converge and markets can provide a stable index price.
Neutral
The measure is a contract-pricing safeguard, not a directional market signal. By basing the mark price on a bounded average of recent contract trades, Binance aims to reduce the effect of unreliable or fragmented spot prices on BULLA perpetual contract pricing. The underlying conditions—spot price discrepancies and restricted deposits and withdrawals—can still contribute to volatility and make arbitrage more difficult.
In the short term, traders may see differences between the contract mark price, last traded price and spot prices. This could affect liquidation thresholds, unrealized profit and loss, and funding-related decisions, so traders should monitor Binance’s contract rules and price feeds. Similar exchange adjustments to mark-price calculations during disrupted or illiquid markets are generally intended to limit distortions rather than signal a rise or fall in an asset’s value.
Over the longer term, the impact depends on whether BULLA spot prices converge and reliable index pricing returns. Binance has not provided a specific end date for LPP; it will announce when it restores its standard calculation. The notice alone does not establish a sustained bullish or bearish outlook for BULLA.