Private capital infrastructure
Quantitative infrastructure for private capital.
We build and run the trading system for our own book. This is what it looks like.
01 — About
A private family book, run like an institution.
Opal Capital Group runs a private family trading book. It was founded by a quantitative investor and systems architect — a decade spent bridging quantitative analysis and enterprise systems design, now channelled full-time into a single family book with the discipline usually reserved for institutional desks.
Australian, self-directed, and privately held. We are not a fund. We do not take external capital. We do not sell trading signals.
What we do — full-time — is build and operate the infrastructure that makes disciplined single-family investing possible: live dashboards, morning briefs, multi-factor grading, structured exit hierarchies, and automated order pipelines. Every module runs against a real book, every trading day.
This page is a public record of that infrastructure — and the foundation for a small consulting practice serving others who want the same for their own book.
The stack
How we operate
01
Systems over discretion
Every decision governed by pre-committed rules, not in-the-moment judgment.
02
Built for one book
Purpose-built for a private family — not a productised platform for many.
03
Public infrastructure
The what is visible; the how is proprietary. Craft, not secret.
The dashboard
A live view of every open position across the book — prices refresh through the day and each row shows how the position is tracking against its exit conditions.
Live
0 positions
across 6 sectors
- Live positions
- A running view of what is open and how each one is tracking
- Composite grading
- Each position rated on a rolling multi-factor scorecard
- Exit readiness
- Every position tagged against the exit conditions it is closest to
- Health monitoring
- Position-level status flags to catch anything worth reviewing early
- Pre-committed orders
- Planned entries queued and reviewed before they are placed
Automated trade capture
Trade confirmations feed straight through to the dashboard — no spreadsheet copy-and-paste, no manual entry.
Daily intelligence scan
Every morning before the market opens, a single brief lands in the inbox — market context, what's happening across sectors, anything that needs attention on the book, and what to watch during the day.
Last brief
Friday 1 Aug 2026
- 01Market regime overview
- 02Sector activity
- 03Position review
- 04Entry candidates
- 05Upcoming earnings
- 06Items to hold off on
Runs automatically each morning, with fall-back retries if any upstream data source is slow.
What the system detects
Signal categories
A handful of signal categories run quietly in the background — each one designed to surface the thing that matters, without adding noise.
- Market context
- A read on the broader market so nothing is done in isolation
- Relative strength
- What is quietly leading and what is quietly lagging
- Position scoring
- A rolling composite score for every position on the book
- Candidate screening
- A shortlist that has already been pre-vetted before it lands
- Risk monitoring
- Position-level trailing checks so nothing drifts unnoticed
- Volatility scanning
- A regular cross-asset read on how noisy the market really is