quantwave-core 0.5.0

A high-performance, Polars-native technical analysis library for Rust.
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QuantWave

High-performance, Polars-native technical analysis — in Python and Rust

150+ indicators · Full Ehlers DSP suite · Regime Detection · Complete Options India stack · Bit-identical streaming & batch

Python pip install quantwave Rust cargo add quantwave

📖 Documentation • ⭐ GitHub • Ask DeepWiki

150+ indicators • Polars-native • Streaming & batch parity • MIT licensed

Why QuantWave?

Most quantitative libraries force an uncomfortable compromise.

Python-first libraries (pandas-ta, TA-Lib Python wrappers, etc.) are convenient but fall apart on large datasets, recursive indicators, or live streaming — often becoming 10-100x slower than native code.

Pure Rust libraries are fast, but they rarely integrate cleanly with modern Polars-based research pipelines and lack the breadth of advanced techniques (Ehlers DSP, regime detection, full Options India analytics).

QuantWave removes the tradeoff.

It delivers institutional-grade Rust performance through zero-copy Polars expressions, while offering a first-class, productive experience in both Python and Rust. Every indicator is built on a single mathematical source of truth — the Next<T> trait — guaranteeing that batch results (Polars) and real-time streaming results are bit-identical.

How We Compare

Approach Speed on large data Polars-native Streaming parity Breadth (Ehlers + Regimes + Options)
pandas-ta / TA-Lib (Python) Poor–Average Partial Rare Limited
Other Rust TA crates Excellent Poor Rare Limited
QuantWave Excellent Native Guaranteed Strong

What We’ve Built

QuantWave is no longer early-stage. It ships with production-ready depth across several domains:

  • 150+ Technical Indicators with TA-Lib parity and extensive Ehlers DSP coverage
  • Full Regime Detection Suite (HMM, GMM, PELT, clustering, conditioned risk metrics)
  • Complete Options India Stack — Black-Scholes Greeks, IV solvers, chain analytics (Max Pain, PCR, GEX, OI Zones), and NSE utilities, all exposed as native Polars expressions
  • Streaming & Batch Parity — The same mathematical logic powers both high-speed Polars pipelines and low-latency streaming via the universal Next<T> trait
  • Gold-Standard Validation — Every indicator is tested against reference implementations for correctness

Core Strengths

  • Performance — Rust core with zero-copy Polars expressions
  • Correctness — Validated against gold-standard reference vectors
  • Parity — Bit-identical results between batch and streaming
  • Breadth — Classic indicators + advanced Ehlers DSP + regime detection + Options India
  • Developer Experience — Clean Python API (from quantwave import ta) and idiomatic Rust

Real-World Performance

We don’t just claim to be fast — here’s what the numbers show on 1 million rows of realistic OHLCV data:

  • SuperTrend: 7.4 ms (QuantWave) vs >200 ms (Pandas) → ~27× faster
  • CyberCycle (Ehlers): 5.0 ms vs >500 ms (Pandas) → ~100× faster
  • Instantaneous Trendline: 74 ms vs >2,000 ms (Pandas) → ~27× faster
  • Memory footprint on realistic multi-ticker data: 2–5× lower than Pandas

Complex recursive indicators (the ones that matter most for real strategies) are where the gap becomes dramatic.

→ Full benchmarks & methodology

Quickstart (Python)

pip install quantwave

import polars as pl
from quantwave import ta

df = pl.read_parquet("ohlcv.parquet")

df = df.with_columns(
    ta.rsi("close", 14).alias("rsi"),
    ta.mama("close").alias("mama"),
    ta.supertrend("high", "low", "close", period=10, multiplier=3.0).alias("supertrend"),
)

More examples → Documentation

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