New Delhi, May 19 (IANS) India’s capital markets regulator Securities and Exchange Board of India on Tuesday proposed a major revamp of the trade-processing mechanism used for institutional stock market transactions, seeking to cut delays, lower costs and reduce dependence on a single infrastructure provider.

In a consultation paper, SEBI proposed replacing the existing centralised Straight Through Processing (STP) hub model with a direct communication framework based on application programming interfaces (APIs).

The regulator said the current structure introduces additional latency, increases operational costs and creates concentration risks in the market infrastructure ecosystem.

STP is the backend framework that enables the exchange of trade-related messages — including electronic contract notes and settlement instructions — among brokers, custodians and institutional investors. The mechanism is mandatory for institutional trades that are settled through custodians.

At present, communication between different service providers passes through a central hub before reaching the intended participant. According to SEBI, this arrangement adds extra transmission time and results in higher charges for market participants. The regulator also flagged the growing concentration risk in the system, noting that nearly 95-99 per cent of all STP traffic is currently handled by a single service provider, creating the possibility of a single point of failure.

Under the proposed framework, service providers would be able to communicate directly with one another through APIs instead of routing messages via the centralized hub. SEBI said the move would improve operational efficiency, enhance scalability and strengthen the resilience of the institutional trade-processing system while also reducing costs.

The regulator clarified that the proposed changes would not require brokers, custodians, institutional investors or other STP users to make major system-level modifications.

SEBI has also proposed enabling optional API-based communication between users serviced by the same provider. The regulator said this could help reduce dependence on manual file uploads and downloads, which remain vulnerable to operational errors.

The market watchdog has invited public comments on the proposal until June 9.

–IANS

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