Bitcoin miners took a double hit this week. Revenue fell 9.44% after a network difficulty adjustment landed on top of a price decline that had already started pushing hashprice lower. The result: hashprice dropped from roughly $40 to $35 per petahash per second (PH/s), squeezing margins for operators big and small.
The hashprice slide
Hashprice — the expected value of 1 PH/s of hashing power per day — began sliding on May 14 as bitcoin's price weakened. Two days later, on May 15, the network's difficulty jumped 3.12%, compounding the revenue hit. That's the kind of one-two punch miners hate: less reward for the same work, plus more competition for the same block rewards.
The 9.44% revenue drop is the most direct consequence. Miners running older, less efficient rigs will feel it fastest. Those with locked-in power contracts or next-gen hardware might absorb the blow, but the margin is thinner now than it was a week ago.
Difficulty adjustment mechanics
Bitcoin's difficulty adjusts roughly every two weeks to keep block production steady. A 3.12% increase means the network's computing power has grown — more machines joined the race. That's normally a bullish signal for network health, but when it arrives alongside a price dip, it punishes miners who haven't hedged their exposure.
The adjustment took effect on May 15, one day after hashprice started falling. The timing isn't great. Miners who'd been banking on a stable or rising hashprice are now staring at a lower revenue projection for the next two weeks until the next difficulty recalibration.
What miners are facing
Hashprice at $35 per PH/s is not crisis territory, but it's a noticeable step down from the $40 handle that had held for much of the spring. For publicly traded miners reporting quarterly earnings, this week's compression could mean lower revenue guidance. Private operators running on thin margins may need to decide whether to throttle some machines or ride it out.
The next difficulty adjustment is about two weeks out. If the price doesn't recover, the network could see a difficulty decrease as some miners pull hashrate offline. That would eventually relieve pressure — but only after more weeks of tighter margins.
