Aster, an on-chain trading platform backed by YZi Labs, has officially launched Shield Mode, a new protected trading feature integrated into its Aster Perpetual platform. Announced on December 15, 2025, Shield Mode is designed to offer high-leverage trading—up to 1001x for BTC and ETH—within a more secure and private on-chain environment.
The new mode addresses a key challenge in transparent on-chain markets: the exposure of trading strategies and intentions. Shield Mode builds upon Aster's previous introduction of Hidden Orders in mid-2025, which allowed traders to conceal order price and size from the public order book. "Shield Mode reflects our belief that the future of on-chain trading isn't just about leverage or speed—it's also about control, discretion, and protection," said Leonard, CEO of Aster.
Shield Mode simplifies position management by removing the need for traders to interact with a public order book. It consolidates the full 1001x trading experience into a single interface, eliminating cross-chain switching, fragmented workflows, and frequent on-chain transaction signing. Core benefits include zero slippage, no opening fees, and the new elimination of closing fees and gas costs entirely, enabling faster trade execution.
The platform also announced a flexible future fee model. Traders will eventually choose between Commission Mode (a fixed percentage fee per trade) and PnL Mode (fees charged only on profitable trades). To celebrate the launch, all Shield Mode fees are waived until the end of 2025.
This launch is positioned as a milestone in Aster's mission to build a next-generation on-chain trading platform for advanced traders, contributing to the consolidation of its core features. The company is also developing its own Aster Chain and is currently running a multi-stage airdrop and incentive program.
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