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SigmaFi
§ Research Approach · Strategies · Lifecycle

Research that
compounds.

We treat research as a self-improving system, not a sequence of one-off bets. Hypotheses, backtests, stress tests and live monitoring all live on the same substrate — so a good idea travels from paper to production in days, not quarters.

§ 01 — Strategy library

Five pillars,
one shared substrate.

Each pillar inherits the same data backbone, the same backtester, the same risk system. We can mix, hedge and capacity-budget across them because they all speak the same language.

01 PILLAR

Statistical arbitrage & pairs

We rank thousands of correlated instruments, build long/short books to dampen margin pressure, and execute across multiple venues — capturing the mean-reverting noise between assets that should move together.

  • Cross-sectional
  • Rank-based
  • Multi-venue execution
  • Daily-to-intraday
02 PILLAR

Cross-sectional momentum & reversal

Relative-strength signals long the top decile and short the bottom. Short-horizon mean reversion captures the snap-back of recent over-extensions. Sized by realised volatility regime.

  • Relative value
  • Vol-targeted
  • Intraday + daily
  • Regime-aware
03 PILLAR

Multi-factor portfolios

Momentum, value, carry, low-vol, quality — a factor library combined under a risk-aware optimiser that rebalances daily across regions and asset classes. Capacity-aware sizing keeps the book honest.

  • Cross-asset
  • Daily rebalance
  • Risk-budgeted
  • Capacity-aware
04 PILLAR

Cross-market arbitrage & HFT execution

Kernel-bypass networking, custom exchange adapters and co-located gateways harvest fleeting price differentials across exchanges, dark pools and pairs of correlated derivatives.

  • Sub-millisecond
  • Co-located
  • Cross-venue
  • Latency-aware
05 PILLAR

Machine learning & alt data

Gradient-boosted ensembles, transformer-style sequence models and probabilistic graphical models trained on order-flow imbalance, options skew, news embeddings and on-chain signals.

  • Transformers
  • GBM
  • Order flow
  • News + on-chain
+ N

In incubation.

Roughly 120 hypotheses enter the pipeline each week. Most fail — that is the point. The ones that survive backtests, stress tests and paper trading inform the next iteration.

See the platform →

§ 02 — Research lifecycle

Every signal passes through the same six gates.

No idea reaches production by intuition alone. The lifecycle below codifies the bar: every strategy on our book has cleared each gate, and continues to clear it on a rolling basis.

  1. 01 GATE

    Hypothesis

    Read, conjecture, formalise. Papers in, hypotheses out — a dedicated harness summarises and structures the literature daily.

  2. 02 GATE

    Backtest

    Vector-replayed against a bit-exact replica of historical microstructure. No look-ahead, no survivor bias, no rounding cheats.

  3. 03 GATE

    Stress

    Crisis windows — 2008, 2015, 2018 vol-spike, 2020 COVID, 2022 rates — and synthetic shocks. We size for the worst plausible week, not the median month.

  4. 04 GATE

    Paper

    Live data, real venues, zero risk. We compare to backtest in real-time and only graduate if the slippage profile matches expectations.

  5. 05 GATE

    Production

    Promoted under capacity-aware sizing, monitored by a per-strategy dashboard, with kill-switches owned by independent risk.

  6. 06 GATE

    Decommission

    When a strategy decays past its expected half-life, we retire it before it leaks. Discipline beats nostalgia.

§ 03 — Data substrate

Every signal needs a clean, replayable past.

We curate a single, deduplicated, bit-exact archive of market and alternative data — from tick-level order books to filings, news, options-implied surfaces and on-chain transfers. Every backtest reads the same store. Every researcher works from the same ground truth.

Tick L2/L3
Order-book depth, time-and-sales
Options
Implied surfaces · IV / skew / term
Fundamentals
Filings · estimates · revisions
Alt data
News · embeddings · on-chain
Macro
Rates · curves · cross-currency
Microstructure
Auction · cancels · prints
cws://research/portfolio.composite ● live
Portfolio composite — illustrative
σ +3 σ +1 μ σ −1 σ −3

* Stylised visual. No representation of past, current or projected performance.

Read the literature. Build the substrate. Earn the alpha.

See the platform