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Leadership

Meet the Founder

Alexandru Runcianu

Founder / CIO

Current Role

Systematic Risk Trading / Portfolio Trading Desk

Bank of America, London

Buy-Side Experience

Arini Capital Management

Internship & Mentorship Programme

Certifications

CISI: Securities, Derivatives & Regulations

EUREX Trader Exam

Education

Loughborough University

BEng Product Design Engineering

Alexandru Runcianu trades index rebalance flow daily on the Systematic Risk Trading and Portfolio Trading desk at a major global investment bank. He saw firsthand the constraints: manual sizing, rigid execution that leaks information, and alpha consistently left on the table.

Previously at Arini Capital Management, he joined at the earliest stage and learned what it takes to build a world-class fund from zero to one.

That combination of sell-side insight into forced institutional flow and buy-side exposure to elite fund building is the foundation for Ventium: an AI-native operating system that deploys specialised AI agents to automate the full event-driven pod workflow, while keeping humans in control of risk.

Delta-1

Trading Desk

Arini

Buy-Side Foundation

0 to 1

Early-Stage Exposure

CISI

Regulated Professional

Thesis

The Case for an
AI-Native Event-Driven Fund.

VENTIUM CAPITAL // FOUNDING THESIS // 2025

The Market: $18 Trillion in Forced Flows

Index funds control over $18 trillion in global assets. Every time an index adds, removes, or reweights a stock, passive funds must trade at the close. This is a structural mandate: buy high, sell low, on a fixed schedule.

The result is 20-30bps of structural drag, $36-54 billion annually in value transfer to participants positioned to capture it. Every event-driven desk sees this. Almost none can trade it at scale.

The Bottleneck: Traditional Desks Cannot Scale

The legacy workflow: buy predictions from a vendor, have a PM manually map signals for 5-10 names, then route orders via schedule-based algos over days.

Every step destroys alpha. The PM skips the smaller names where edge is highest. The trader uses rigid algos that counterparties detect and exploit. The prediction is not the problem. The human workflow between prediction and profit is the bottleneck.

Ventium

The Solution: AI Agents Automate the Workflow. Humans Control the Risk.

Ventium replaces the manual, fragmented workflow with an integrated AI-native operating system powered by specialised AI agents.

Same vendor forecasts as everyone else. The edge: AI agents go further, mining filings, microstructure, and cross-asset flows to surface alpha signals beyond human insight. They model each event, estimate flow, size positions across all 400+ tickers, assess crowding, and execute via adaptive algorithms that respond to real-time order book conditions while minimising transaction costs and market impact.

Humans remain in control. Every new event campaign requires sign-off. Hard risk limits are enforced independently. Any position can be overridden at any time. The AI agents automate the repeatable. The human controls the risk.

The Edge: AI Agents, TCA, and the Feedback Loop

The moat is not a single model. It's the integrated AI agent workflow:

AI Crowding Agent. Continuously ingests alt data and 13F filings to estimate how many others are in the trade. High crowding means reduced sizing or avoidance.

AI Execution Agent. Adaptively slices orders in response to real-time order book conditions, liquidity toxicity, and counterparty detection risk. TCA feedback minimises market impact and slippage on every fill.

Proprietary feedback loop. Every trade generates TCA and execution data: fill rates, slippage, market impact, crowding accuracy, reversal timing. Human overrides feed back into the models. The agents compound their edge with each event.

Revenue Model

Proprietary capital with controlled leverage on structurally recurring events. Two return sources:

01

The Spread

Position ahead of forced demand, exit into the close.

02

The Mean Reversion

Post-event price reversion as artificial demand subsides.

Two trades per event. Both structurally predictable. No market view, no macro call. Alpha from the mechanics of forced flow.

Why Now

Three structural shifts:

01

Passive AUM is accelerating.

$2T to $18T in 15 years. Every inflow increases the size of forced rebalance flows.

02

AI agents are production-ready for workflow automation.

Specialised AI agents can now automate signal processing, scenario modelling, TCA-optimised execution, and risk monitoring, with human oversight at every critical juncture.

03

Incumbents are structurally stuck.

Legacy funds built around human PMs and rigid execution cannot rebuild from scratch. That is our opening.

The prediction is a commodity. The workflow between prediction and profit is the bottleneck. Ventium removes that bottleneck, with AI agents automating the repeatable and humans controlling the risk.