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Home›Case studies›Case study: a Mumbai broker lists Firefly on its platform
Case study · Broker · 6 min · updated 2 Oct 2026

Case study: a Mumbai broker lists Firefly on its platform

How a Mumbai broker added Firefly to its in-house algo platform, scaled to millions of orders a month under per-book drawdown limits, and grew active accounts.

An anonymised account of a real Fintrens integration. The broker is a SEBI-registered stockbroker headquartered in Mumbai; names and exact volumes are withheld under the commercial agreement. No returns or P&L are shown.

Who

A full-service broker with a large retail base and an active network of authorised persons, which had built its own algo trading platform to meet the retail-algo framework and wanted third-party strategies on it that it could put its name next to.

The problem they wanted to solve

The platform launched with the broker's own handful of strategies and a long tail of vendor algos of uneven quality. Clients asked for something with published, trade-level evidence; the compliance team asked for something whose risk controls they could inspect; the APs asked for something they could explain to clients without becoming advisers. The broker also wanted order flow that was systematic rather than tip-driven, and accounts that stayed active beyond the first month.

What was built

Firefly's strategy engine and execution layer were integrated with the broker's order-management system over the broker's API, with the broker's platform as the client-facing front end: the client selects a Firefly basket inside the broker's app, sets capital and the drawdown limit, and the broker's own risk layer sits between Firefly and the exchange. Backtests are published trade by trade on the platform, as they are on fintrens.com. Every order carries the exchange algo tag and the broker's per-account rate limits, and both the broker and Fintrens hold a kill switch per book.

The engineering that mattered was unglamorous: idempotent order placement so a network retry can never double-fill, batching that respects exchange order-per-second throttles across thousands of accounts at the same timestamp, reconciliation against the broker's trade book every evening, and a sandbox that replays a full trading day before any change reaches production. Latency was not the constraint; Firefly's strategies work on end-of-day and intraday rules, not microseconds.

Scaling

Volume grew in steps as APs onboarded their client books. At peak the platform was processing millions of Firefly-generated orders a month across its client base, each on the client's own account, with the per-book drawdown limits in force throughout and no incident of an order being placed outside a book's limits. Books that reached their limits paused and were reviewed; the limit is designed to stop a book, not to prevent losses, and some books did lose in some months.

What changed for each party

For the broker: brokerage from systematic, repeat order flow; accounts that had been dormant became active; a product their compliance team had inspected end to end. For the APs: a product they could place with clients that did not require them to pick trades; several reported it as the easiest conversation on the shelf because every rule has a stop. For clients: strategies with public evidence, on their own account, with limits they set. For Fintrens: the credibility of being listed inside a regulated broker's platform, and a large base of accounts whose behaviour sharpened the engine's execution.

If you are a broker or platform reading this

The integration is described on Firefly for business and the API on fintech infrastructure. A white-label or co-branded listing takes four to twelve weeks depending on your OMS; a signals-only feed inside your app is faster. Fintrens supplies strategies, execution logic, risk checks and reporting; the client relationship, the registration and the exchange obligations stay with you.

Questions people ask

Did the broker hand client funds to Fintrens?

No. Every order is placed on the client's own account at the broker through the broker's own order-management system. Fintrens never holds funds or securities; it supplies strategies, execution logic and risk checks.

How does the exchange framework for retail algos apply?

Under the SEBI framework effective from 2025–26, algos reaching the exchange through a broker must be registered and orders tagged with an algo ID; the broker is responsible for the API access and the risk checks. Listing Firefly inside the broker's platform means those controls sit where the regulator expects them — at the broker.

What did scaling to millions of orders require?

Rate limiting per account, order batching that respects exchange throttles, idempotent order placement so a retry never double-fills, and a kill switch per book and per platform. Most of the work was in the broker's OMS, not in the strategies.

Was there a month where the drawdown limit was hit?

Yes, on individual books. A drawdown limit is a promise that a book stops, not that it never loses. Books that hit the limit paused, the clients were notified by the broker, and most resumed after review with reduced size.

Fintrens Technologies Pvt Ltd is not a SEBI-registered investment adviser or research analyst. This guide is general information, not advice; trading involves risk of loss.

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