core · Lesson 5
Walls, Floors, and the Magnet
The three levels that define every Helios chart. · 4 min read
The dashboard highlights three structural levels on every price chart:
Call Wall (resistance)
The strike where call gamma is most concentrated. As price approaches, dealer hedging pushes back. The wall behaves as resistance — most rallies into a Call Wall fail until OI shifts.
Put Floor (support)
The strike where put gamma is most concentrated. Dealer hedging absorbs sell-pressure. The floor behaves as support; breakdowns through a major Put Floor often trigger sharp vol expansion.
Magnet
The strike with the highest gamma in absolute terms. Price tends to gravitate here — especially into expiration when gamma effects are sharpest.
Helios tags wall strength (LOW / MED / HIGH / MAX). A wall with 5k OI is a soft cap; one with 50k+ OI is a meaningful institutional barrier.
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