09 May, 2025
Ethereum Sparks Market Rally After Upgrade While Miners Face Squeezed Margins
Bitcoin Miners Expand Reserves, But Margins Shrink
Bitcoin miner MARA Holdings expanded its BTC reserves by 175% year-over-year, amassing 47,531 Bitcoin now worth approximately $4.9 billion. This positions MARA just behind MicroStrategy, which still dominates the leaderboard with 555,450 BTC, according to CoinGecko data.
Yet, MARA’s production tells a less bullish story. The firm mined 2,286 BTC in Q1 2025, marking a 19% drop compared to the same quarter last year. The decline follows the recent Bitcoin halving, which reduced block rewards to 3.125 BTC and tightened overall issuance.
MARA's revenue fell slightly short missing analyst estimates by 0.35%, according to Zacks Research. The company has only outperformed revenue projections once in the past four quarters. Even so, MARA’s stock jumped 7.2% on May 8 before easing back in after-hours trading.
Across the mining sector, companies are battling rising costs and slimmer margins:
· Riot Platforms reported a 90% year-over-year increase in mining costs, now averaging $43,808 per BTC.
· CleanSpark narrowly missed consensus expectations by 0.58%, while Core Scientific saw a sharper miss at 8.11%.
· Hut8 reported the widest gap, falling 35% short of Wall Street revenue forecasts.
Ethereum’s Pectra Upgrade Ignites Momentum Shift
As miners grind through compression, Ethereum (ETH) staged a rally that outpaced broader crypto benchmarks. ETH surged nearly 20%, trading above $2,100, marking its strongest daily performance since 2021.
The rally follows the rollout of Ethereum’s Pectra upgrade, a sweeping protocol overhaul that:
· Raises the staking cap from 32 to 2,048 ETH via EIP-7251
· Improves wallet flexibility through EIP-7702, introducing temporary smart contract functionality
· Integrates nine additional Ethereum Improvement Proposals
This upgrade narrowed the performance gap with Bitcoin. ETH had lagged much of the year, with the ETHBTC ratio plummeting to 0.02. Analysts from Presto Research and Flowdesk noted a return of risk-on sentiment, with capital rotating into high-beta plays.
Flowdesk highlighted a "recycling of sell flow into higher-momentum assets," suggesting investor appetite is pivoting back toward altcoins and structured crypto products.
Still, not all metrics inspire confidence. A report from CryptoQuant warned that Ethereum’s on-chain activity remains flat, stagnating since 2021 hinting that the rally may outpace underlying fundamentals.
Bitcoin Continues Climb, ETFs Drive Upward Pressure
Meanwhile, Bitcoin (BTC) continues its steady ascent, trading above $102,500. ETF inflows remain positive, and analysts at Standard Chartered have begun calling their previous $120,000 Q2 target “too conservative.” The CoinDesk 20 Index, a benchmark for digital asset performance, is up over 10%.
As miners fight for profitability and Ethereum regains market favor, the broader crypto ecosystem finds itself navigating a volatile blend of protocol upgrades, rising operational costs, and renewed retail interest.