Rajandran R Creator of OpenAlgo Sketchmaker, RagZ. Building GenAI Applications. Telecom Engineer turned Full-time Derivative Trader. Mostly Trading Nifty, Banknifty, High Liquid Stock Derivatives. Trading the Markets Since 2006 onwards. Using Market Profile and Orderflow for more than a decade. Designed and published 100+ open source trading systems on various trading tools. Now the recent curiosity on building Trading AI Agents.

Scene of the Crime (SOC) in Trading – Why Markets Often Return

1 min read

In market behavior analysis, certain price zones carry a unique psychological and structural significance. One such concept is the Scene of the Crime (SOC) — a level or zone from which a sharp, news-driven, impulsive move begins.

When unexpected events hit the market — earnings surprises, policy changes, or geopolitical shocks — prices often break away aggressively from a specific level. This sudden departure leaves behind a stretch of price territory that remains un-auctioned.


Understanding the SOC Zone

  • SOC: The exact price or small range where the impulsive move originated.
  • Un-auctioned area: The gap or fast-move zone between the SOC and where price retraces, where little to no balanced trading occurred.
  • Key characteristic: Market spends very little time here; orders are absorbed instantly, pushing prices away.

In auction market theory terms, this is a zone where supply and demand never fully interacted — the imbalance pushed prices out before traders could react.


Why the Market Revisits SOC

Just as a criminal may return to the scene of the crime, the market often gravitates back to this level.
Reasons include:

  1. Filling missing auction – Liquidity wasn’t fully tested.
  2. Position reassessment – Traders who missed the move may re-enter here.
  3. Liquidity grabs – Market makers target these zones to trigger resting orders.

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SOC in the Indian Stock Market – Historical Examples

1. Demonetization Shock – November 8, 2016

When the Indian government announced demonetization of ₹500 and ₹1,000 notes after market hours, Nifty Futures opened with a massive gap down the next day, falling sharply from around 8,500 to near 8,100 in a single session.


The 8,100–8,400 zone became the SOC — few days later, prices revisited and auctioned this area before continuing higher.

2. Policy Surprise – Corporate Tax Cut, September 20, 2019

The Finance Minister announced a surprise corporate tax rate cut from 30% to 22%. Nifty jumped over 5% in a single day, blasting past the 10,800–11,200 zone with hardly any trading in between. That range later served as an SOC retest area in early 2020.

3. Stock-Specific – Infosys Earnings Miss, October 2019

Infosys opened sharply lower after whistleblower complaints about corporate governance. Price plunged from around 760 to near 640 with a quick gap-down. The 760–640 band became an SOC zone — retested months later as sentiment stabilized.


SOC as a Trading Opportunity

A retest of the SOC zone is often watched closely by traders:

  • Continuation setups: If the fundamental driver still holds, SOC retests can launch another leg in the same direction.
  • Reversal setups: If sentiment has flipped, SOC can act as a support/resistance flip.

Key Takeaways

  • SOC zones are born from news-driven imbalance.
  • These zones are often magnets for price revisits.
  • Context matters: understand the event, trend, and volume profile before trading them.
Rajandran R Creator of OpenAlgo Sketchmaker, RagZ. Building GenAI Applications. Telecom Engineer turned Full-time Derivative Trader. Mostly Trading Nifty, Banknifty, High Liquid Stock Derivatives. Trading the Markets Since 2006 onwards. Using Market Profile and Orderflow for more than a decade. Designed and published 100+ open source trading systems on various trading tools. Now the recent curiosity on building Trading AI Agents.

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