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Pool Saturation Monitor
Cardano pools approaching or exceeding saturation deliver diminished rewards to delegators.
This page shows pools at 50%+ saturation so you can make informed delegation decisions.
Oversaturated Pools
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≥ 100% saturation
Nearly Saturated
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90% – 99.99%
Saturation Threshold
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k Parameter (nOpt)
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Target pool count
Circulating Supply
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Data Epoch
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How saturation is calculated:saturation_threshold = (max_supply − reserves) / k where max supply is 45B ADA,
reserves come from db-sync's ada_pots table, and k (nOpt) from epoch_param.
Each pool's saturation % = (pool_stake / saturation_threshold) × 100.
Pool stake: Sum of all epoch_stake for the pool in the current epoch (includes pledge + delegations). Saturation threshold: Dynamically calculated each epoch from on-chain data — not a fixed number. Impact: Pools above 100% still produce blocks, but total rewards are capped at the saturation level.
Additional stake above that point dilutes rewards among more delegators without increasing the total payout. Retirement filter: Truly retired pools are excluded using on-chain certificate ordering.
Status labels:Oversaturated = ≥100% (rewards are actively diminished);
Critical = 95–99.99% (very close to saturation);
High = 80–94.99% (approaching saturation);
Healthy = 50–79.99%.
If your pool is oversaturated, consider redelegating to a smaller pool to maximise your rewards.