Ivolution Research Journal · Preregistration
Call wall as intraday resistance
An intraday touch of the vendor-style 'call wall' (largest positive-gamma call strike above spot) is followed by rejection (negative forward 30-min return) more often than a distance-matched baseline — and this does NOT survive controlling for distance-to-VWAP and net GEX.
Cite as: GEX-08: Call wall as intraday resistance. Ivolution Research Journal.
Publication status
The study is pre-registered and awaits execution. No result exists yet.
The abstract and product-safe scope metadata are public. Methodology, falsification, limitations, citations, and governed results for GEX-08 are available to Terminal + AI members.
Symbols
SPX · SPY · ES
Regimes
Aggregate · Positive gamma · pin · Positive gamma · drift · Negative gamma · trend · Negative gamma · chop · Event day
Horizons
15 min · 30 min