Bitcoin Miners’ Margins Shrink as Costs Outpace Revenue

Miner revenue fell below the cost to produce new bitcoin in recent weeks, shrinking gross margins and prompting operators to adjust mining activity worldwide.

Miners generate revenue from the block reward and transaction fees; most operators convert mined bitcoin to fiat when they sell holdings. Production costs include electricity, cooling, facility overhead, hardware depreciation and financing costs.

Revenue per unit of hashing power has declined because of a lower bitcoin market price, reduced transaction fee income and steady increases in network difficulty. Higher difficulty reduces the expected bitcoin earned by each machine over time.

Electricity rates, equipment replacement schedules and interest on debt determine the fixed and variable costs miners must cover. Costs are higher for older machines and in regions with elevated power prices.

Operators have responded in various ways. Some paused older, less-efficient rigs to cut power use. Miners with access to cheaper power or newer machines kept running. Several operators delayed hardware purchases, renegotiated power contracts, sold equipment or drew on credit lines.

The cost to produce one bitcoin equals total mining expenses divided by bitcoin produced. When that per-coin cost is higher than the fiat value received from sales, operations lose money on each coin mined until costs fall or revenues rise.

Large, vertically integrated mining firms tend to secure long-term, low-cost power contracts and have wider access to capital markets. Smaller or independent miners typically have higher costs per terahash and are more likely to reduce output when margins compress.

Periodic reductions in the block subsidy, which occur roughly every four years, reduce the new-coin portion of miner revenue; over time transaction fees account for a larger share of payouts. Changes in miner participation affect total network hashrate and difficulty. If many operators pause, hashrate can decline and difficulty can fall, which alters expected earnings for active machines.

Market participants track metrics such as hashprice, network difficulty and the average cost to mine one bitcoin to monitor industry health. Movements in those measures can prompt additional operational changes by miners.