BitMEX’s design for perpetual swaps, funding rates, liquidation engines and insurance funds still underpins much of the crypto derivatives market, according to a report published by BlockTempo. The article says perpetual contracts accounted for about 78% of the crypto derivatives market’s $86 trillion total trading volume in 2025, and that BitMEX’s core framework has been running continuously since 2016.
Perpetuals remain the dominant derivatives product
The report says institutional participation has expanded sharply, with CME Group’s Bitcoin futures open interest exceeding Binance’s between 2024 and 2025. It attributes key market plumbing behind that growth — funding rates, liquidation engines and insurance fund models — to BitMEX’s original product design.
While those mechanisms have since become standard across the industry, the article argues that BitMEX still matters for professional execution because the underlying structure continues to operate in live markets.
Three pillars of the BitMEX model
According to the report, BitMEX established three building blocks that helped define modern crypto trading: perpetual swaps, 100% cold-wallet storage and the funding-rate mechanism. The article also says the exchange operates without a proprietary trading desk and does not take the other side of customer positions.
It adds that platforms including Bybit, OKX, Binance and Hyperliquid later adopted similar structures. BitMEX’s XBTUSD (BTCUSD), the piece says, remains the longest-running Bitcoin perpetual contract, spanning multiple market cycles and providing nearly a decade of continuous funding-rate data.
Native reverse copy trading tied to on-chain performance
The article also describes a native reverse copy trading feature on BitMEX. It says the exchange feeds on-chain verified performance data from top DeFi traders in environments such as Hyperliquid into its execution engine, allowing users to systematically short underperforming accounts without building and maintaining custom reverse-trading bots or paying the extra API and latency costs.
The report adds a caveat: tools like these only matter if the underlying exchange can keep assets liquid and avoid insolvency during market breaks.
October 2025 flash crash tested the insurance fund
BlockTempo says BitMEX’s insurance fund has accumulated liquidation surpluses since 2014. It points to an October 2025 flash crash triggered by a U.S. tariff announcement, when $19 billion to $20 billion in cascading liquidations hit the market and Bitcoin fell 14%, forcing major venues to activate auto-deleveraging.
According to the article, BitMEX’s insurance fund closed that day at a record high and absorbed the loss gap, ensuring profitable counterparties were not forcibly reduced. The report also notes that BitMEX has published proof-of-reserves reports twice a week since 2021.
Structural funding spread between inverse and linear contracts
On trading opportunities, the report says one of BitMEX’s main draws is a persistent funding-rate divergence between its inverse contracts and stablecoin-settled linear perpetuals.
It says token-margined inverse products such as XBTUSD tend to retain a positive funding bias in bull markets, while USDT- and USDC-settled linear perpetuals on Binance, OKX and Hyperliquid can see funding pushed lower — or below zero — because of concentrated short hedging demand.
By the report’s account, BitMEX’s inverse contract complex has sustained a structural positive funding bias of roughly 10% annualized since 2016. That spread, it says, creates a workable cross-exchange delta-neutral trade centered on earning the funding differential.
Examples from H1 2025 and product roadmap
The article gives examples from the first half of 2025. An unlevered basis trade that went long on linear-perpetual venues and short on BitMEX generated about 15.6% annualized delta-neutral returns for SOL and about 15.7% for AVAX, according to the report.
It adds that BitMEX is working on multi-asset margining and institutional self-custody integration, with the product line aimed at higher-volume traders evaluating exchange infrastructure as closely as they assess position risk.