Firsthand Bitcoin · Data · Bitcoin miners
Data / Difficulty adjustments / 2026
The size of every bitcoin difficulty retarget, as a percentage.
Difficulty adjustment opened 2026 at -1.20% (January 8, 2026) and closed at +5.54% (October 29, 2026), down 559.8%. The high was +14.73% on February 19, 2026 and the low -11.16% on February 7, 2026.
| Month | Month end |
|---|---|
| January 2026 | -3.28% |
| February 2026 | +14.73% |
| March 2026 | -7.76% |
| April 2026 | -2.43% |
| May 2026 | +1.72% |
| June 2026 | +7.15% |
| July 2026 | -0.74% |
| August 2026 | -1.31% |
| September 2026 | +4.16% |
| October 2026 | +5.54% |
Each bar is one retarget. Most are small and upward, because hashrate keeps growing. The large negative ones mark the moments miners switched off in numbers: China’s mining ban in mid-2021 produced the biggest cut in bitcoin’s history, −28%.
Other years: 2025 · 2024 · 2023 · 2022 · 2021 · 2020 · 2019 · 2018 · 2017 · 2016 · 2015 · 2014 · 2013
Also in 2026: Bitcoin price · Distance from the all-time high · 200-day and 200-week averages · Network hashrate · Mining difficulty · Fees paid to miners · Transactions per day · Hashprice · Miner revenue · Miner prices per terahash · Bitmain releases and the bitcoin price · Break-even electricity price