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Binance’s New Rule Could Have Prevented the $19 Billion October Crash

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Binance announced the Spot Price Range Execution Rule (PRER), a new mechanism that expires taker orders when execution prices fall outside a dynamic fair-value band.

The rule takes effect gradually starting April 14, 2026. It directly targets the type of spot-market failures that surfaced during the October 10, 2025 flash crash.

What Triggered the Binance PRER

On October 10, 2025, President Trump’s announcement of 100% tariffs on Chinese imports set off the largest single-day liquidation cascade in crypto history.

Over $19.13 billion in leveraged positions were liquidated in a 24-hour period, affecting more than 1.6 million traders.

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On Binance, assets like Cosmos (ATOM) briefly traded near zero as margin collateral was sold off in bulk.

Cosmos (ATOM) Price Performance
Cosmos (ATOM) Price Performance. Source: TradingView

Stale limit orders, some placed years earlier, filled against one-sided liquidity at extreme prices. Binance paid $283 million to compensate users affected by the de-pegging of USDe, BNSOL, and WBETH.

The exchange later launched a separate $400 million “Together Initiative” covering forced liquidation losses, bringing total compensation to $683 million.

How PRER Works

PRER calculates a dynamic reference price per trading pair using a moving average of recent trades. Configurable bands above and below that reference define the acceptable execution range.

When a taker order would fill outside that band, the unfilled portion expires rather than executing at an abnormal price. Maker orders resting on the book remain unaffected, and under normal conditions daily trading sees no impact.

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Binance stated this mechanism will roll out pair by pair, with new listings activating once sufficient trading history establishes a reliable reference price.

API users can query reference prices and band parameters through dedicated endpoints in real time.

Traders with open orders should review their strategies before April 14.

Nevertheless, while PRER adds a protective layer against extreme fills, it does not eliminate volatility or the broader risks of leveraged crypto trading.

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The post Binance’s New Rule Could Have Prevented the $19 Billion October Crash appeared first on BeInCrypto.

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Crypto World

Changpeng Zhao Memoir Details Binance Rise, Prison Sentence, Legal Fallout

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Changpeng Zhao Memoir Details Binance Rise, Prison Sentence, Legal Fallout

Changpeng “CZ” Zhao became a household name in the cryptocurrency sector after founding Binance, the world’s largest crypto exchange. Following a series of legal and regulatory challenges that culminated in a prison sentence, Zhao has authored an autobiography recounting his rise — and subsequent fallout.

The 364-page manuscript, titled Freedom of Money, presents a first-person account of Zhao’s life and career. The foreword is written by Yi He, a Binance co-founder who has worked with Zhao since 2014.

Zhao writes that his story has been shaped by media coverage, court filings and public commentary. He describes the book as an account intended to provide additional context to those narratives.

Throughout the memoir, Zhao emphasizes the human dimension behind Binance’s rapid ascent — and his personal and professional downfall — which he argues has been lost in soundbite-driven coverage.

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The memoir covers his early life and career in finance and technology, as well as the founding of Binance in 2017. It outlines the company’s rapid growth into one of the world’s largest cryptocurrency exchanges.

Regulatory failures and accountability

Zhao served a four-month prison sentence in the United States in 2024 after pleading guilty to violating US Anti-Money-Laundering laws, as part of a broader settlement with authorities that also required him to step down as Binance CEO.

The case marked a major enforcement action by the US Department of Justice, which had initially sought a longer sentence to reflect the severity of the violations. Binance, for its part, agreed to pay billions of dollars in penalties and implement sweeping compliance reforms.

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US regulators had for years scrutinized Binance over alleged failures related to anti-money laundering controls, sanctions compliance and operating without proper licensing. The settlement effectively closed one of the most high-profile investigations in the crypto industry.

In the memoir, Zhao reflects on the decisions and missteps that led to these outcomes. He recounts the events surrounding the settlement, his guilty plea and his resignation, describing the tradeoffs made during Binance’s rapid growth.

The book also includes detailed descriptions of his time in federal prison, including the adjustment from leading a global company to living in a confined environment.

Binance remains a top venue for crypto access, including derivatives trading, where it ranks first globally in trading volume. Source: CoinGlass

Related: Binance led Q1 crypto derivatives as Hyperliquid cracked top 10: CoinGlass

“Freedom of money”

The book’s title reflects a central theme of the memoir. Zhao describes the “freedom of money” as the idea that cryptocurrency can address barriers to financial access, particularly in countries with limited banking infrastructure or strict capital controls.

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He links part of Binance’s growth to users in emerging markets who used the platform to move funds across borders, hedge against local currency volatility and access global financial markets.

Zhao also acknowledges that expanding access at scale introduced challenges. He writes that Binance’s rapid growth often outpaced regulatory frameworks, contributing to gaps in compliance and oversight that later drew scrutiny from authorities.

Related: Crypto’s 2026 investment playbook: Bitcoin, stablecoin infrastructure, tokenized assets