F&O Circular Trading Detection
F&O circular trading detection refers to SEBI's surveillance mechanisms for identifying wash trades, matched orders, and coordinated circular transactions in the derivatives segment that create artificial volumes or manipulate prices without genuine change in beneficial ownership.
Circular trading in F&O involves entities — often connected through promoter relationships, family networks, or pre-arranged coordination — repeatedly trading with each other to create the appearance of active volume without genuine economic risk transfer. The practice artificially inflates reported turnover, manipulates open interest statistics, and can distort the settlement prices of illiquid contracts.
SEBI's market surveillance department uses an Integrated Market Surveillance System (IMSS) that analyses trade data in near real-time. Algorithms flag accounts that consistently trade on opposite sides of the same contracts, accounts with unusually high match rates between buy and sell orders placed within short time windows, and entities whose F&O trades show no net directional risk but generate high reported turnover.
Wash trades — where the same entity effectively buys and sells simultaneously with itself through separate accounts — were specifically prohibited under SEBI's Prevention of Fraudulent and Unfair Trade Practices (PFUTP) Regulations. In the F&O segment, SEBI examined cases where proprietary accounts of brokers, their associates, and client accounts showed matching circular patterns in illiquid stock options.
Several SEBI enforcement orders in the 2015-2023 period detailed cases of circular trading in illiquid stock F&O contracts. A common pattern involved options on smaller-cap stocks with low underlying float, where a small group of connected parties traded the same options contracts back and forth at inflating prices, using the artificial price history to claim large gains on paper — potentially facilitating cash conversion schemes or LTCG tax manipulation.
For genuine market participants, the existence of SEBI surveillance meant that any pattern that superficially resembled circular trading — such as a trading system that repeatedly opened and closed the same contract in response to its own signals — needed to have a clear audit trail of independent decision logic. Algorithmic traders were required under SEBI regulations to register their algorithms with their brokers and follow prescribed risk-control standards, partly to facilitate surveillance distinguishing genuine algo activity from wash trades.