Cardano’s Shelley upgrade, launched in July 2020, got one thing right from the start: it let $ADA holders earn staking rewards without ever giving up custody of their coins.
Six years later, that design choice still shapes how the network runs, with 21.56 billion $ADA staked across 2,882 active stake pools, according to Cexplorer data cited in recent coverage.
What Did Shelley Actually Change?
Before Shelley, Cardano ran on the Byron era, which began at mainnet launch in September 2017. Byron was federated, meaning a small set of nodes run by IOG and its partners produced blocks. Shelley replaced that setup with the Ouroboros proof-of-stake protocol, opening block production to anyone running a stake pool.
Delegation was the key feature. $ADA holders could delegate their coins to a stake pool operator without transferring ownership. Coins never leave the holder’s wallet, there is no minimum lock-up period, and there is no slashing penalty for pool downtime, unlike on some other proof-of-stake networks. Staking can be started with as little as 1 $ADA from any compatible wallet.
Why Does the Non-Custodial Model Matter Today?
The model matters because it removed a common friction point in early proof-of-stake systems: trusting a third party with your funds to earn a yield. A few points explain why this held up:
- No custody risk. Delegators keep their private keys the entire time.
- No lock-up. Holders can move or sell staked $ADA without an unbonding wait.
- No slashing. Pool errors do not cost delegators their principal.
- Low barrier to entry. Any wallet balance can participate, which spread stake across many small holders rather than concentrating it.
That combination pushed participation higher than in many rival networks. Roughly 60% of $ADA‘s circulating supply is currently staked, based on figures reported by Changelly’s market research team.
How Has the Stake Pool Network Grown?
Shelley launched with around 100 stake pools. That number has since grown to 2,882 active pools, per Cardano network explorer data. The spread of pools across many independent operators, rather than a handful of large custodial exchanges, has kept block production relatively decentralized compared with networks where a few staking providers dominate.
What Comes After Shelley?
Cardano has kept building on the Shelley foundation rather than replacing it. On July 18, 2026, the network activated the Van Rossem hard fork, moving from Protocol Version 10 to Version 11. Intersect reported this was the first Cardano hard fork ratified entirely through onchain governance, with 77.63% DRep support and 52.7% stake pool operator support.
Van Rossem is preparatory work for the Dijkstra era, the next planned hard fork. Dijkstra is expected to bring three changes:
- Nested Transactions
- Linear Leios
- Peras
The bigger technical story is Ouroboros Leios, a scalability upgrade currently being tested on a public testnet called Musashi Dojo. Input Output Global says Leios could raise Cardano’s base layer throughput by five to twenty times.
Early simulation figures put possible transaction speeds between 200 and over 1,000 transactions per second depending on transaction size, though IOG has framed these as simulation results rather than guaranteed outcomes. A mainnet hard fork for Leios is targeted for later in 2026, without a confirmed date.
Where Does $ADA Trade Now?
As of August 13, 2026, $ADA trades near $0.18, according to CoinMarketCap, with a 24-hour trading volume around $206 million. That price sits well below $ADA‘s 2021 cycle high, but staking participation has stayed steady through the drawdown, suggesting delegators are treating staking as a network security function rather than a short-term trade.
Conclusion
Six years on, Shelley’s core design choices, no custody transfer, no lock-up, no slashing, still define how Cardano staking works. That model helped grow the network to 2,882 stake pools securing 21.56 billion $ADA, and it remains the base layer that governance changes like Van Rossem and scaling upgrades like Ouroboros Leios are being built on top of.
FAQ
What made Cardano’s Shelley staking model non-custodial? Delegators keep their $ADA in their own wallets at all times. Staking only assigns voting weight to a pool; it never transfers ownership of the coins.
Is there a lock-up period for staking $ADA? No. $ADA can be delegated or moved at any time, with no mandatory waiting period to withdraw staked coins.
How many stake pools does Cardano have today? As of mid-2026, Cardano has 2,882 active stake pools managing 21.56 billion $ADA in live stake, according to Cexplorer data.
- Report by Intersect MBO: Cardano Upgrade: Van Rossem Hard Fork (official governance body update on Cardano’s ratification process)
- Report by Yahoo Finance: Van Rossem Hard Fork Goes Live — What Protocol Version 11 Means for Cardano
- Report by Crypto.news: Cardano Activates Van Rossem Hard Fork as Leios Upgrade Draws Closer
- Report by CoinMarketCap: Cardano Price Today, $ADA to USD Live Price
