Adjust parameters with the sliders to explore how delegation affects SPO income and delegator ROA in real time.
Pool Lookup — Mainnet via Koios + corsproxy.io (no API key needed)
Enter a ticker or a full pool ID (pool1…) then press Enter or click Load Pool.
Sliders for margin, fee, pledge, current delegation, and performance will be set automatically.
Ctrl+K returns focus here.
Pool Parameters
Performance Analysis — actual vs expected blocks, auto-fetched from Koios on Load Pool
Load a pool above to auto-compute performance. Epochs with fewer than 0.5 expected blocks are excluded. Adjust the window or the factor manually for what-if analysis.
Pledge Bonus (A_eff)
—
ADA/epoch
SPO Income (at cursor)
—
ADA / epoch
Delegator ROA (at cursor)
—
% per year
Performance Factor
100.0%
actual / expected blocks
Chart Cursor — Current Delegation Level
SPO Income (solid, left axis) & Delegator ROA %/yr (dashed, right axis) — External Delegation 0 → 70 M ADA | dashed orange = saturation
SPO curve:
green = delegation helps
red = delegation hurts |
ROA curve:
dashed blue |
Cursor markers:
slope ≥ 0
slope < 0
Reference Formulas
gross_eff(S, P, p)
= p × r × (S + a₀·P) / (1 + a₀)
| p = performance factor (0–1)
| a₀ = 0.3 (protocol constant) SPO income
= F + m·(gross_eff − F) + (P/S)·(1−m)·(gross_eff − F)
[when gross_eff > F; otherwise SPO takes all of gross_eff] Delegator ROA/yr
= (1−m)·(gross_eff − F) / S × 73 epochs × 100% A_eff = p·r·a₀·P / (1+a₀)
|
mmin = (A_eff − F) / (p·r·P − F) when A_eff > F, else 0%
| Ceiling: a₀/(1+a₀) ≈ 23.1% r = 0.000548 (epoch rate — slowly declining as ADA reserve depletes)
| Saturation Ssat ≈ 75 M ADA (2025) Performance p
= actual blocks / expected blocks (averaged over chosen epoch window)
| expected = (pool active stake / network active stake) × total epoch blocks