Current phase
↓ Declining
OSC peak: Jul 2025 · 0.6803 (env touch)
Price peak: Oct 6 2025 · $124,723
C4 low: 0.3320 (Feb 27, 2026)
C4 bottom (proj.)
Oct 2026
Target: 0.265–0.295
Harmonic E_bot: 0.262
Key: decisive weekly turn-up
C5 top (proj.)
Oct 2029
Log-linear mid: ~0.381
Harmonic adj: 0.460–0.490
95% band: [0.232, 0.626]
C5 bottom (proj.)
Oct 2030
Target: ~0.290–0.320
Rising floor trend
E_bot model: ~0.273
How to read this engine: Historical base uses your exact BTC/USD daily data (Oct 2009 → Jun 17, 2026) — 5,659 candles embedded directly, no CDN or API needed to load. On open the engine renders instantly from that data, then silently fetches any new candles in the background. The Legend Oscillator is a proprietary quantitative framework that tracks structural turning points in Bitcoin's market cycles using our advanced mathematical decay envelopes. C4 low confirmed Feb 27, 2026 at 0.3320. Current bounce to 0.3561 is still in structural break zone. Watch for weekly closes above the equilibrium threshold to confirm recovery is underway.