As of block 13,960,322
Epoch 656
Block timestamp 2026-09-19T09:05:28+00:00
Total Active Stake Pools
2,893
Registered and non-retired pools on the Cardano network
Number of pools in each block-count range. Y-axis uses linear scale. Hover for details.
Distribution Bands
Seven bands. Every pool falls in exactly one, so these counts add up to
2,893 exactly. The percentages are each rounded to one decimal
place, so they may not total exactly 100%.
33.8%
0 blocks (977 pools)
5.5%
2 – 10 blocks (159 pools)
8.7%
11 – 100 blocks (251 pools)
17.7%
101 – 1,000 blocks (512 pools)
20.9%
1,001 – 10,000 blocks (606 pools)
10.1%
Over 10,000 blocks (292 pools)
Cumulative Shares
These overlap one another and overlap the bands above. Each counts every
pool at or below its threshold, so they are not meant to be added together.
42.6%
Minted 10 or fewer blocks (1,232 pools)
51.3%
Minted 100 or fewer blocks (1,483 pools)
66.2%
Minted at least 1 block (1,916 pools)
Central Tendency
2,576
Mean — average blocks per pool
78
Median — middle value (50th percentile)
0
Mode — most common block count (977 pools)
33x
Mean-to-median ratio — measure of skew
Spread & Variability
5,154
Standard deviation — typical spread from the mean
26,560,923
Variance — squared spread (σ²)
200.1%
Coefficient of variation — relative spread (σ/μ)
1,950
IQR — interquartile range (Q3 − Q1)
Percentiles
0
25th percentile (Q1) — bottom quarter below this
78
50th percentile (Q2) — the median
1,950
75th percentile (Q3) — top quarter above this
10,074
90th percentile — top 10% threshold
15,450
95th percentile — top 5% threshold
21,850
99th percentile — top 1% threshold
28,968
Maximum — most blocks by a single pool
Shape & Concentration
2.44
Skewness — positive = long right tail (>0 means heavy right skew)
5.50
Excess kurtosis — 0 for a normal distribution; higher means more extreme outliers
0.8080
Gini coefficient — inequality measure (0 = equal, 1 = one pool has everything)
371x
Concentration ratio — top pool vs median pool
3.6%
of the blocks counted here came from the top 10 pools
9.3%
of the blocks counted here came from the top 1% of pools (28 pools)
7,451,119
Total blocks minted by these 2,893 pools combined
About these figures
Population.
The 2,893 pools counted here are those registered on
Cardano and not retired. A pool that retired and later re-registered is included,
and so are the blocks it minted before it retired.
Basis.
Every count is lifetime cumulative — all the blocks a pool has minted since
its first, with no time window. A pool that has been running for years will
therefore sit far above an equally capable pool that registered recently. Read
these figures as a record of accumulated output, not as a measure of how a pool
is performing now.
Not counted.
The chain holds 13,960,499 blocks and the figures
above cover 7,451,119 of them. Two groups are excluded:
4,957,299 blocks that have no
stake pool behind them at all — the Byron era and federated block production
— and 1,552,081 blocks
minted by pools that have since retired. Together those are
46.6% of every block ever produced.