August 26, 2025
Decoding Derivatives

Weekly Recap : Crypto Rates W34

Decoding Derivatives

Market Overview

The digital asset market experienced an abrupt cooldown this week as a mid-week rally failed to sustain momentum, leading to a sharp price reversal and a period of consolidation. Market structure showed signs of fragility as speculative enthusiasm waned, giving way to a more cautious and defensive posture among participants.

Fig: 0: Time-series of BTC & ETH spot prices over the last 14 days, with corresponding hourly price standard deviation as a measure of volatility.

Rates & Basis Analysis: Bitcoin and Ethereum

Perpetual funding rates for both Bitcoin and Ethereum remained firm, suggesting a resilient bid from leveraged traders despite the negative price action. Bitcoin funding rates compressed early in the period before expanding to average approximately 8.2%, a slight increase from the prior week's 7.7% average. Ethereum funding followed a similar trajectory, tightening from a weekly low near 6.5% to finish the period strong, averaging around 8.7%. This persistent positive carry indicates that demand for leveraged long exposure in the perpetuals market has not been fully extinguished.

Fig 1: Weekly distributions of annualized CEX Funding Rates and CME Basis for BTC and ETH, comparing 'This Week' vs. 'Last Week'

In stark contrast, the institutional-facing CME term structure exhibited extreme volatility and dislocation. Bitcoin's basis oscillated violently, plunging to a discount as deep as -11% before spiking to an anomalous high, pointing to severe hedging pressure or pockets of liquidity challenges. Ethereum's basis showed a similar pattern of distress, frequently trading at a significant discount to spot, underscoring significant institutional uncertainty.

Fig 3: 14-day time series of the annualized ETH-USDT basis spread on Bybit.

Fig 2: 14-day time series of the annualized BTC-USDT basis spread on Bybit.

Offshore term-futures presented a more anchored, albeit divergent, picture. The annualized basis on Bybit for Bitcoin closed the week at a healthy 13.2% premium, suggesting stronger demand for dated longs in that venue. Meanwhile, Ethereum’s basis remained notably flatter, settling just below 1%, indicating a comparative lack of conviction in ETH term structure.

Funding Arbitrage & Market Dislocations

Persistent dislocations across venues continued to generate notable carry opportunities for arbitrageurs. The most pronounced opportunity was in the API3 market, where a long position on Binance paired against a short on Bitget offered a cumulative 7-day spread of approximately 3.13%. A similar structural trade in BIO, long Binance versus short Hyperliquid, would have yielded roughly 2.14% over the same period, highlighting significant and persistent pricing inefficiencies between exchanges.

Fig 4: Top 10 funding rate arbitrage opportunities, ranked by 7-day cumulative raw spread between exchange pairs.

Altcoin Funding Dynamics

Funding dynamics within the altcoin sector were heterogeneous, reflecting asset-specific sentiment shifts rather than a monolithic market view. Of particular note, sentiment for Solana on Binance saw a material reversal, with its cumulative funding rate flipping from a negative close in the prior week to a firmly positive reading. Similarly, XRP funding rates on the same venue turned positive after a period of being suppressed, indicating a potential exhaustion of short-side pressure and a tentative return of speculative interest.

Fig 5: Comparative 7-day funding rate trajectories for selected altcoins with highest delta in funding on different venues, showing divergent trends in market sentiment

Conclusion

The current rates environment paints a portrait of a fractured market. While perpetual markets retain a clear bias for long carry, deep instability and periodic backwardation in the CME basis suggest institutional players are defensively positioned. This divergence between speculative retail and institutional sentiment underscores a fragile equilibrium, creating a market prone to further volatility as it seeks a clear directional catalyst.