Have you ever wondered why two DMD Diamond validators with similar total stakes and historical APYs can still deliver different rewards to delegators at the end of the month?
Evaluating validator pools solely by stake size, APY or voting power isn’t enough. Doing so can cause delegators to overlook an important metric: the operational performance of the validator node. DMD Diamond’s recent UI improvements make this easier to assess with the introduction of the AEP30 (Active Epoch Participation) metric.
What is AEP30?
AEP30 measures the percentage of epochs over the previous 30 days in which a validator was selected for the active validator set.
Stake tells you how much capital a validator attracts. APY tells you what it has historically returned. AEP30 tells you how consistently the validator actually participates on the network.
Within the DMD Diamond ecosystem, a validator’s earning potential depends on how often it is selected for active-set participation.
The DMD Diamond blockchain operates on 12-hour epochs through its POSDAO validator election mechanism and HoneyBadgerBFT consensus engine. At each epoch transition, the DMD Diamond protocol selects 25 eligible validators for the active set based on factors including candidate pool stake, bonus score, and on-chain randomness.
Once selected, a validator can produce blocks, validate transactions, and earn rewards for that epoch. Validators that aren’t selected remain idle for that epoch and don’t generate rewards for their delegators.
An AEP30 score of 80% means the validator was selected for the active set during 80% of the network’s epochs over the previous 30 days.
Why Similar Validators Earn Different Rewards
So why can validator pools with nearly equal delegated amounts still generate different rewards? One major factor is election frequency: how often a validator is selected to participate for each epoch.
A validator’s stake does not guarantee frequent active-set participation. Differences in bonus score, eligibility and the protocol’s randomized validator election can lead similar pools to be selected at different frequencies. Operational reliability also matters because a validator must successfully participate when elected to earn rewards.
Validators can improve their chances of maintaining a high AEP30 through strong uptime, low latency and a healthy bonus score. For delegators, a higher AEP30 indicates more frequent active-set participation, giving their delegated DMD more opportunities to earn rewards.
Low AEP30 Doesn’t Necessarily Mean Lower Returns
Smaller validator pools can naturally have a lower AEP30 than larger pools. However, this does not necessarily mean lower APY. Although a smaller pool may earn rewards less often, those rewards are shared across fewer staked DMD, which can result in returns comparable to or even higher than those of larger pools.
The outcome depends dynamically on the number of validator candidates, their stake sizes, and the competition for the 25 active-set positions. For example, if only 26 candidates are competing, even a 10,000 DMD validator may be selected frequently, while its rewards are distributed across considerably less stake.
This dynamic is built into DMD Diamond’s validator election mechanics to encourage a healthy number of candidates rather than concentrating stake in a few large pools. For this reason, AEP30 should be considered alongside RpT30, and validator stake size.
How to Evaluate Validator Candidate Pools via the Diamond UI
- Check RpT30: Start by checking validators with strong RpT30 to identify pools delivering competitive net payouts per 1,000 delegated DMD.
- Check AEP30: A higher AEP30 indicates more frequent selection into the active set across the network’s recent epochs.
- Compare stake against participation: If a validator pool has substantial stake but a low AEP30, its node is being selected less frequently. Compare it with other validators before deciding where to delegate your stake.
How to Check AEP30 via the Diamond UI
- Head over to the Diamond UI and connect your wallet.
- Open the Validators List tab.
- Click Customize Columns at the top of the validator list table.
- Toggle on AEP30, RpT30, and validator saturation.
- Sort by AEP30 to identify validators with the highest epoch participation.
AEP30 removes the guesswork out of staking DMD Diamond coins. Rather than following total stake size or APY estimates, delegators can now clearly track how often a node actually gets elected. Whether you prefer a large, frequently elected pool for regular uptime or a smaller pool that pays out a larger share per active epoch, using AEP30 alongside RpT30 helps you make smarter decisions and put your DMD where it earns the best returns.
