BABY paired vs efficiency
Each row is a different BABY amount paired against the same BTC, shown as a % of the optimal (20,000 × BTC). Weight caps at your BTC amount — extra BABY past 100% adds nothing further. Your selected value is highlighted.
| BABY staked (% of optimal) | Weight (BTC-equiv) | Efficienza | BTC wasted |
|---|
The min() that decides who gets the bonus
Babylon's base BTC and BABY staking already pay their own yields. Co-staking is a third, separate pot — funded by 2.35% of annual BABY inflation — reserved for stakers who pair both assets from the same address in the right ratio. The mechanism is deliberately simple and deliberately punishing for mismatched pairs: your co-staking weight is w = min(BABY staked ÷ 20,000, BTC staked). Every 20,000 BABY you stake unlocks 1 BTC-equivalent of weight, but the moment your BABY runs out relative to your BTC, the min() clamps your weight at whatever BABY can cover — the rest of your BTC sits there, fully staked, fully exposed to finality-provider slashing risk, earning zero co-staking bonus. There is no partial credit curve and no soft cap; it is a hard ratio gate. This calculator prices that gate directly: your exact efficiency percentage, how much BTC weight you're leaving on the table, and — using your own assumptions for how contested the pool is — roughly what the bonus is worth in dollars. If you haven't already, size the base BABY yield itself with the Babylon BTC staking calculator, or compare the whole native-BTC-staking path against running infrastructure yourself with the validatore vs calcolatore del pool.
La matematica
Permettere B be BTC staked to an active finality provider and Y be BABY staked from the same address. The protocol's co-staking factor is a fixed constant R = 20,000 — every 20,000 BABY makes 1 BTC eligible. Your co-staking weight È w = min(Y⁄R, B), expressed in BTC-equivalent units. Your efficiency È w⁄B × 100: 100% means every BTC you staked is earning the bonus, 50% means half of it is dead weight. The BABY amount needed for full efficiency is simply B × R; any BABY beyond that is not wasted (it still earns Babylon's normal BABY staking yield) but adds nothing further to w, since the min() is already pinned at B.
I premi vengono distribuiti come your reward = pool × (w ⁄ total weight of all co-stakers). This calculator asks you to estimate the two pieces you can't look up on-chain in advance — the combined weight of every other co-staker, and the pool's annual USD value — so it can turn your share into a projected annual reward and an implied APR on your staked BTC's dollar value. Because network-wide participation isn't fixed by the protocol, treat that reward estimate as a sensitivity check under your stated assumptions, not a guaranteed number; the efficiency percentage above it, by contrast, is exact and follows directly from the published formula, independent of what anyone else stakes.