Explore the complete Cardano ADA supply distribution for epoch 639, which began on 2026-06-23 and is still ongoing.
This interactive insight helps you understand how the total ADA supply is allocated across key categories — from circulating supply and reserves to staking rewards and the treasury.
At the close of each 5-day epoch, the Ouroboros protocol performs supply and reward calculations across all participating nodes. The resulting transfers distribute staking rewards and allocate a portion to the Cardano treasury, supporting ongoing development and ecosystem growth.
| Category | ada | % | Description |
|---|---|---|---|
| Circulation | 36,383,968,860 ada | 80.85% | Sum of all circulating UTxOs |
| Treasury | 1,471,083,729 ada | 3.27% | All ada currently in the treasury pot |
| Rewards | 850,860,858 ada | 1.89% | All unclaimed rewards |
| Deposits Stake | 4,419,816 ada | 0.01% | Deposit pot for registered stake pools and staking accounts |
| Deposits DRep | 525,500 ada | 0.00% | Deposit pot for registered DReps |
| Deposits Proposal | 2,100,000 ada | 0.00% | Deposit pot for active governance actions |
| Fees | 42,314 ada | 0.00% | Fees collected |
| Total Supply | 38,713,001,077 ada | 86.03% | All ada in circulation + unclaimed rewards + deposits + fees + treasury |
| Reserves | 6,286,998,923 ada | 13.97% | Difference between maximum and total supply |
| Maximum supply | 45,000,000,000 ada | 100.00% | The maximum amount of ada that can ever exist, based on the genesis block definition. |
Epoch 639 facts:
Q: How did the values change compared to the previous Epoch?
A: At the start of epoch 639, the Cardano Ouroboros protocol distributed the staking rewards for epoch 637 and transaction fees collected in epoch 638. This transferred 10,114,770 ada from the reserves to the active supply, equivalent to a 0.16% decrease in reserves and a 0.03% increase in active supply.
Q: How much ada was added to the treasury?
A: In epoch 639, rewards and fees contributed 3,718,650 ada — 36.76% of the overall staking rewards — to the treasury. However, withdrawals of 23,000,000 ada from this epoch outweighed this amount, resulting in a net decrease of 19,281,350 ada (-1.31%) compared to the previous epoch.
Q: How many fees were collected and distributed?
A: In the currently running epoch, 42,314 ada in transaction fees have been paid so far. 42,032 ada from epoch 638 was distributed as rewards and treasury extension. These fees came from 125,172 transactions, averaging 0.34 ada per transaction, and accounted for 0.42% of the total rewards distributed
Q: Were there withdrawals from the treasury in epoch 639?
A: There was 1 treasury withdrawal totaling 23,000,000 ada.
- Cardano Critical Integrations V2: 23,000,000 ada [read more]
Q: Where can I learn more about the Cardano Mainnet reward calculation?
The reward calculation is based on the ledger specification. Further information can be found in the Cardano Blueprint documentation. There is an independent Java implementation with many explanations, as well as a training course from Cardano Academy on calculating staking rewards.