STX-only yield

STX-only stakers get 85% of what remains after bonds and the reserve cut. Realised yield is sats earned per STX staked in each distribution; the APY converts it to BTC terms at the STX/BTC price of that distribution.

Realised APY (BTC terms)mirrored

6.67%distribution 286, priced at 315.01 sats/STXstx_only_yield * 50 / price (coingecko:market_chart/range @ 1789642800)

Per STX stakedmirrored

0.4202 satssats per STX in that distributionmainnet pox-5 calculate-rewards event, tx 0x4a0218d7b13de29ae47015e72345876d362c47159216675d40d03cd09ad1cc5d: total-stx-staker-rewards / cycle-staked-ustx * 1e6

Headroom to the zero-yield cliffmirrored

94.0%pool can fall this far before STX-only yield is zero1 - obligation / gross_pool

Realised APY per distribution

mirrored

STX-only APY, BTC terms (%)

(total-stx-staker-rewards ÷ cycle-staked-ustx × 1e6) × 50 ÷ price at the distribution (CoinGecko hourly; Coinbase fallback)

Distance to the zero-yield cliff

Cliff price todaymirrored

21.1 sats/STXcurrent price 351.14 sats/STX × obligation ÷ pool. assumes miner BTC bids scale linearly with the STX price

With the SIP's 3,000 BTC launch bookhypothetical

≈ 274.4 sats/STX3,000 BTC at 3% owes 180,000,000 sats per interval, against today's pool.

friedger's figure, SIP inputshypothetical

171.2 sats/STX3,000 BTC × 3% ÷ (1,000 STX/block × 52,560 blocks/year). See the Methodology page.

Price-denominated cliffs assume miner BTC bids scale with the STX price. Observed pool per sat/STX of price ranged 0.58M–0.89M sats across distributions 282–286, so treat them as indicative.