For Family Offices · Hedge Funds · Institutional Allocators

A research-grounded derivatives strategy.
Closed-loop Greek budgeting.

Gastaldi Quantitative is the institutional implementation of work published in the academic literature under the Universal Statistical Edge principle. The strategy manages exposure on regulated derivatives venues under a closed-loop Greek-budgeting discipline. Investor capital is never under our custody. The tear sheet and the data room are available on request to qualifying allocators.

"We do not forecast. We balance exposure. Everything else that is sold to retail traders — signals, technical analysis, predictions — is, statistically, noise."

— Prof. Tommaso Gastaldi, principal
The Gastaldi Quantitative operator console — live portfolio, layers, fills, and the folio monitor view, running on the desk in real time.
// live operator console portfolio · layers · folio monitor
25+
Years of methodology research
arXiv
2404.14252 — peer-visible
$0
Custody of investor capital
$700k
Capital floor · paper evaluation

The edge is not in the chart. It is in what the book remembers.

The strategy is built on the Universal Statistical Edge (USE) principle — the result of decades of research on what compounds in financial markets when forecasting is removed from the decision loop. Conventional trading lore — signals, technical analysis, momentum — is explicitly rejected as a primary trigger.

USE Principle

Markets do not have to mean-revert. Inventory does.

The edge does not depend on the underlying reverting. It depends on inventory cycling through harvest and reset states under an induced price recurrence created by the bilateral book itself.

Read the principle →
HTI

Historical Trading Information is the only durable memory.

Every fill, every stranded order, every rollover is preserved as structured memory. The system does not predict the next tick. It knows where every existing position came from and the conditions that would close it profitably.

How HTI shapes strategy →
Closed-loop Greek budgeting

Bull and bear are coordinates in a balance, not a forecast.

The book manages bilateral inventory whose total exposure is bounded by hard, non-bypassable Greek caps. Asymmetry is corrected mechanically. Risk-reducing operations are never gated. New risk is always gated. "Close-before-open" is sacred.

From betting to balance →
Academic provenance. The USE principle is published as arXiv:2404.14252 — On a fundamental statistical edge principle. Companion material, simulations and reviews are open at datatime.eu/public/arXiv_paper. A non-technical summary appeared in Business Reporter.

Strictly formatted. No marketing fluff.

A one-page institutional brief. The current edition is methodology-led: strategy, risk architecture, capital requirements. Live performance statistics — Sharpe, Sortino, max drawdown, Calmar — are released as the paper evaluation programme accumulates the required observation window.

Gastaldi Quantitative
Strategy Tear Sheet · Methodology Edition
For Professional & Institutional Investors
As of

Strategy

Bilateral derivatives book on regulated venues, managed under the Universal Statistical Edge (USE) principle. The strategy does not forecast. It manages controllable inventory recurrence through rollover, hedge and repair operations, gated by per-Greek hard caps. Source paper: arXiv:2404.14252.

Risk architecture

  • Per-Greek hard caps — Δ̄, Γ, V, Θ each have non-bypassable budgets; new risk blocked at cap.
  • Risk-reducing operations exempt — closes, forced flatten, and risk-reducing hedges always allowed.
  • Pre-fill filter set — crossed, stale, wide-spread and thin-book quotes refused before execution.
  • Margin headroom buffer — bounded against the venue's worst-case stress matrix at startup.
  • Operator-in-the-loop — per-layer Manual/Auto switch; no autonomous flatten of the entire book.

Performance

Net annualised returnReporting from Q1 2027
Sharpe (excess)
Sortino
Max drawdown
Calmar
Observation windowPaper evaluation in progress

Performance fields are released only after the live paper-trade programme reaches a statistically significant window. We do not publish back-test numbers.

Capital & operational

Capital floor (paper)USD 700,000
Capital target (live)USD 3 million +
Single-account ceilingUSD ~500 million
Primary instrumentsCME-listed options & futures (ES, etc.)
Prime brokerageInteractive Brokers (Portfolio Margin)
BenchmarkS&P 500 total return
CustodyNone — capital remains at investor's prime
Management feeNegotiated per mandate
arXiv:2404.14252 · datatime.eu/public/arXiv_paper · Business Reporter
Direct: office@gastaldi.fund · tommaso@gastaldi.fund

Eight principles that drive every session.

We do not try to be clever about the future. We try to be disciplined about what we already hold. The same set of ideas recurs whether the book is one instrument or fifty.

01

No signals. No forecasts. No technical analysis.

Every chart pattern, every indicator, every momentum read is rejected as a primary trigger. Trackers such as the Kaufman SDX appear only as veto gates, never as buy or sell triggers.

02

Inventory as a controllable price loop.

Each instrument is a Layer. Each Layer contains Players — units of inventory with a side, an average entry and a lineage. The system opens, hedges, repairs and rolls Players to harvest the decay and reset cycle.

03

Rollover is information transfer, not exit.

When a Player rolls, the Historical Trading Information transfers to the new leg. The price loop does not depend on the underlying actually mean-reverting — it depends on a controllable recurrence built from the book's own state.

04

Hard caps are non-bypassable.

Greek budgets, exposure caps and margin fractions block new risk unconditionally. Closes, forced flatten and risk-reducing hedges are always allowed. "Close-before-open" is the operating axiom.

05

Filters before fills.

Crossed quotes, stale quotes, out-of-line bid or ask, thin top-of-book sizes — all of them are refused. The filter set is the single most rewritten part of the codebase. The defaults are paranoid by design.

06

Operator-in-the-loop is mandatory.

Every Layer has a Manual / Auto switch. Every order is visible in the order book before fill. There is no "flatten the whole folio" button by design — if you need to flatten, you flatten Layer by Layer while watching each fill.

07

Capital is part of the strategy.

The system is engineered to scale — single accounts up to roughly USD 500 million, multi-account architectures beyond. Under the capital floor, the system will not generate meaningful work. This is the only honest answer.

08

Volatility is opportunity, not threat.

The largest absolute profits arise from movement, not calm. Quiet markets produce few opens by design. Active markets produce the most information — if filters and caps are respected.

How a mandate actually runs.

The strategy runs on the investor's own infrastructure or on a dedicated trading workstation under our operation. It talks to the prime broker over a single user-defined encrypted port. Investor capital never moves under our control.

No custody. No co-mingling.

The execution engine communicates directly with the venue's gateway over an encrypted link. Tick data, Greeks, fills, rejections and margin events flow on that link and nowhere else. Capital remains in the investor's own prime brokerage account at all times.

This is an architectural choice, not a compliance frill: what is not collected cannot be betrayed. What is not stored cannot be disclosed.

Pseudonymity is permitted during evaluation. During the paper evaluation phase, allocators may engage under a pseudonym. Identity disclosure is required only at the live mandate stage.
Architecture diagram: prime brokerage gateway, operator console, hard caps and the HTI memory loop.
// architecture · prime gateway · HTI loop

Stage 1 · Paper evaluation

Live tick data. Fictitious funds. Zero risk to the allocator.

You evaluate the strategy on a Portfolio Margin paper-trading account using live exchange data. Every fill, every Greek, every cap event is observable. There is no obligation to move to a live mandate and no time limit on this stage.

Stage 2 · Live mandate

Same software. Same console. Investor's capital. Investor's prime.

Once you have verified forward behaviour with your own eyes, the execution engine is repointed at a live account. Nothing is installed on our side. Capital stays in your prime brokerage account. Custody never transfers.

Stage 3 · Scale

Multi-account architecture from a single operator console.

Single instances cap at approximately USD 500 million for clean risk segmentation. Beyond that, multiple instances run against separate sub-accounts from one console — designed for family offices and multi-mandate allocators.

Capital floor · honest answer

Minimum USD 700,000. Optimal from USD 3 million.

The instruments the strategy trades require adequate capital to keep Greek budgets, exposure caps and margin headroom in healthy territory. Under the floor, the system simply will not generate meaningful work. This is the answer, not a marketing position.

Don't take our word for it. Watch it run.

We do not publish back-tests — back-tests are tuneable. We publish live operator sessions, and we hand qualifying allocators the executable so the strategy can be observed on their own console. Forward performance, on your screen, is the only number that matters.

Recorded sessions

Forward sessions on YouTube

Annotated operator sessions, including drawdown moments, fills, repairs and rollovers. Loss windows are not edited out.

Open the playlist →
Didactic tooling

Option Payoff Simulator

A standalone payoff chart designer used during sizing. Free, no signup, distributed by Prof. Gastaldi as didactic material.

Download OPS →
Long-form library

Twenty-plus operator essays

The site is also a long-form essay archive — the methodology argued in the principal's own voice, including the heretical pieces.

Open the library →
Dynamic delta hedging chart with live operator annotations.
// dynamic delta hedging · live session annotated fills · greeks · caps
Prof. Tommaso Gastaldi, guest commentator on the Italian prime-time television show Anno Zero, hosted by Michele Santoro.

Prof. Tommaso Gastaldi

Principal of Gastaldi Quantitative and author of the Universal Statistical Edge principle. A long-standing presence in the academic literature on quantitative finance, Prof. Gastaldi has been a guest commentator on Italian prime-time television (Anno Zero, Michele Santoro) and publishes both the academic and the operator-facing material of this initiative under his own name.

arXiv 2404.14252 · ResearchGate · Business Reporter · datatime.eu

Three doors. One data room behind them.

The qualifying conversation differs by allocator type. The data room is the same; what we ask of you, and what you ask of us, is not.

Request access.

The data room contains the methodology brief, risk-architecture documentation, recorded operator sessions, and the paper-evaluation packet. It is shared on a per-allocator basis. We respond directly, by email, within two business days.

By submitting, you confirm that you are acting in a professional capacity for an institutional, family-office, or qualifying professional-investor mandate. We do not engage retail enquiries via this channel.

Form blocked or prefer email? Write directly to office@gastaldi.fund.

The methodology, in the principal's own voice.

The long-form archive. The pieces below are where the operator voice comes through most directly — the best way to decide whether the methodology fits how your committee thinks about derivatives mandates.

Edge fundamentals
Strategy insights
Safety & survival
Heretical pieces
Theory & tooling

From private initiative to publicly traded company.

This is not an offer or a solicitation. It is a statement of intent. The long-term path of Gastaldi Quantitative is a transition into a publicly traded company in partnership with a major financial institution with substantive expertise in the IPO process. Early participants in the private stage have a documented path into that transition.

We are in active conversation with prospective Strategic Sponsors — allocators with the expertise and relationships to lead a transition of this kind. If you recognise yourself in that description, we invite a direct conversation.

Read the IPO brief →