// HFT Consulting · Quantitative Solutions
Shunya

Zero friction.
Infinite precision.

// शून्य (Shunya) — the quantitative consulting practice

Where stochastic calculus meets microsecond execution. Proprietary HFT solutions for firms operating at the frontier of Indian and global derivatives markets.

<2μs
Signal Latency Target
94%
Regime Detection Accuracy
3.2×
Sharpe Improvement (eSSVI)
5+
Modular Solutions

The void between
signal and noise

Shunya — शून्य — Sanskrit for zero. In mathematics, zero is not absence but perfect balance. In HFT, the edge lives in what most models cannot see: the invisible choreography of limit orders, adverse selection, and microstructure frictions that pull prices away from theory.

"Markets are not random. They are merely too complex for most participants to decode — until now."
— Aryan Ayyar, Founder · MAHE Bangalore

Each engagement begins with rigorous mathematical formulation — extending Kyle (1985), Almgren-Chriss (2000), and eSSVI surface theory to real market microstructure. Every solution is architectured for production deployment, not academic exercise.

Pratibha Vol Surface
Gati Execution Engine
Drishti LOB Analytics
Shakti Signal Layer
Bodha Regime Classifier
Niti Risk Engine
// Live calibration · NIFTY50 · 09:30–09:45 IST Naïve Roll (NR) vs eSSVI arbitrage-free implied volatility surface — 3D comparison across strikes and tenors. eSSVI eliminates butterfly and calendar spread arbitrage while preserving smooth surface geometry.

Proprietary HFT
solutions

Five modular solutions, each battle-tested in live Indian derivatives markets. Deployable independently or as an integrated stack.

Implied volatility surface — eSSVI arbitrage-free parameterization
// 01 · Pratibha

Arbitrage-Free Volatility Surfaces

Real-time calibration of arbitrage-free implied volatility surfaces using the extended Surface SVI (eSSVI) framework. Eliminates butterfly and calendar spread arbitrage through differentiable lattice penalties, producing smooth surfaces suitable for options pricing, delta-hedging, and structured product valuation. Deployable with 2ms latency (HyperIV-class) using hypernetwork parameterization.

eSSVI no-arbitrage NIFTY/BANKNIFTY real-time PPO RL
Limit order book depth visualization — bid/ask dynamics at microsecond resolution
// 02 · Drishti

Market Microstructure Analytics

Deep-level limit order book (LOB) analysis at tick resolution: toxicity scores (VPIN), adverse selection quantification, queue dynamics, and spread decomposition. Proprietary data schemas for option chains and LOB snapshots at microsecond timestamps. Identifies hidden liquidity patterns and price impact functions to calibrate trading strategies against real market frictions.

LOB dynamics VPIN adverse selection tick data NSE/BSE
Candlestick chart — trade execution and price action
// 03 · Gati

Optimal Execution & TCA

Almgren-Chriss based optimal execution algorithms calibrated to Indian market liquidity regimes. Minimizes implementation shortfall through adaptive TWAP/VWAP schedules that respond to real-time spread, depth, and toxicity signals. Includes a full Transaction Cost Analysis (TCA) layer: slippage decomposition, broker performance benchmarking, and execution quality reporting.

Almgren-Chriss TWAP/VWAP TCA slippage smart routing
Kalamkari art — pattern recognition, regime classification
// 04 · Bodha

ML-Powered Regime Detection

GBDT/LSTM hybrid models for real-time market regime classification: calm, trending, high-volatility, and crisis states. Trained on NSE F&O microstructure features — realized volatility, order imbalance, spread dispersion, and cross-sectional correlation. Enables dynamic strategy switching and risk limit adjustment, reducing drawdowns by adapting execution and sizing to prevailing market conditions.

GBDT LSTM regime switching XGBoost F&O features

How an engagement
unfolds

Each consulting engagement follows a rigorous mathematical formulation-to-deployment pipeline.

01
Diagnostic — Map the problem
A structured 2-hour session to identify your primary execution inefficiency, data availability, and latency architecture. Deliverable: a quantitative problem statement with measurable success criteria.
02
Mathematical Formulation
Formal model derivation adapted to your market, asset class, and constraints. Extends established frameworks (Kyle, Almgren-Chriss, SVI) with your specific microstructure parameters.
03
Backtesting & Validation
Rigorous out-of-sample backtesting on your historical data. Walk-forward validation, regime stress-testing, and transaction cost realism. No overfitting. Full statistical disclosure.
04
Production Deployment
Python + C++ implementation optimized for your execution infrastructure. API integration with Zerodha, NSE co-location, or your existing OMS. Latency profiling and kernel-bypass guidance for sub-microsecond paths.
05
Ongoing Advisory
Monthly retainer option for continuous model calibration, regime-based parameter updates, and performance monitoring. Strategy evolves as market microstructure shifts.

At the intersection of
theory and execution

Derivatives Pricing & Greeks
Local vol, stochastic vol (Heston, SABR), rough vol (rBergomi), and eSSVI surfaces. Delta, Gamma, Vanna, and Volga calibration for NSE index options.
Market Making & Spread Optimization
Avellaneda-Stoikov model extensions with inventory penalties, adverse selection filters, and real-time fill-rate optimization for Indian F&O markets.
FPGA & Latency Architecture
Consulting on kernel-bypass (DPDK, OpenOnload), CPU affinity, NUMA topology, lock-free data structures, and co-location strategy for NSE/BSE matching engines.
Gamma Scalping Strategies
Dynamic delta-hedging frameworks that monetize realized-implied volatility spread using GBDT/LSTM forecasts. Includes hedge timing optimization and transaction cost netting.
Reinforcement Learning for Trading
PPO and SAC agents for constrained execution optimization. Differentiable eSSVI embedded inside RL control loops. CVaR-shaped reward functions with no-arbitrage structural constraints.
Limit order book depth visualization showing bid-ask dynamics
// NR vs eSSVI · NIFTY50 Interactive arbitrage-free vol surface. Rotate to compare NR and eSSVI calibrations.

Who engages
Shunya

Shunya works exclusively with firms and individuals operating at the quantitative frontier.

// Proprietary HFT Desks

Indian Prop Trading Firms

Estee Advisors, iRage, Graviton, Quadeye — firms running NSE co-located strategies who need cutting-edge volatility surface infrastructure or execution optimization that their internal quant teams haven't yet built.

Reduce adverse selection by 15-30% Volatility surface calibration in <2ms Regime-adaptive execution, lower slippage
// Global Market Makers

Europe-Based HFT Expansion

Flow Traders, IMC, Optiver, XTX, and smaller European prop shops looking to expand into Indian derivatives markets need a local microstructure expert who understands NSE F&O liquidity dynamics, co-location economics, and regulatory constraints.

India market entry advisory NSE/BSE microstructure mapping Regulatory framework guidance (SEBI)
// Algorithmic Platforms

Fintech & Algo Platforms

AlgoBulls, Trinkerr, and similar platforms needing institutional-grade TCA layers, execution quality reporting, or volatility analytics to differentiate their institutional offering and attract serious quant clients.

TCA layer with slippage decomposition Execution benchmarking dashboard White-label volatility analytics

Engagement
models

Structured as modular consulting engagements — one-off projects, advisory retainers, or co-development partnerships.

Ready to find the
zero in your noise?

Every engagement starts with a focused diagnostic conversation. No pitch decks. No sales process. Just a precise discussion of where your execution or modelling stack can be improved — and whether Shunya is the right fit.

// Typically responds within 24 hours · All enquiries treated with discretion