A systematic trading business · Est. 2023

Capital, run
like a system.

“We run a long equity core with a disciplined covered-call carry overlay to produce cashflow, and we allocate a capped premium risk-budget to calls for convex upside. Income funds torque; risk budgets protect survivability.

2023
Founded
v3.0
Operating Playbook
3+1
Agents on payroll · one human
100%
Decisions logged
01

Three sleeves. One discipline.

The strategy fits in a sentence because the work isn’t in the strategy — it’s in the execution, the limits, and the ledger that governs both.

Sleeve · Core

Long equity core

Quality names held with intention. The core is the balance sheet of the business — built position by position, each with written risk terms from day one.

Sleeve · Carry

Covered-call overlay

A disciplined carry program that converts the core into cashflow. Premium income is the payroll of the operation — recurring, measured, and reinvested by rule.

Sleeve · Convexity

Capped premium risk-budget

A hard-capped allocation to long calls for convex upside. The budget is set in writing before the trade exists — torque is bought with income, never with survival.

“Income funds torque; risk budgets protect survivability.

— The operating thesis

02

The Business Engine Playbook

Most trading runs on judgment and memory. This business runs on a ratified, version-controlled playbook — the same discipline that runs a factory floor, applied to capital.

Every decision in the business routes through a written engine: defined entries, defined exits, position sizing by formula, and pass/fail gates that a trade must clear before it exists. No gate, no trade.

Nothing is automatic and nothing is remembered — it’s recorded. Every engine run produces a decision-log row. Every parameter change is proposed in writing, ratified, and logged before it takes effect. Every override is itself a documented decision.

The books reconcile against the broker — not the other way around. Monthly KPI reviews, quarterly retunes, and a yearly reckoning keep the system honest. Hard exposure caps and portfolio circuit breakers mean no single conviction, however loud, can reach survival.

InstrumentationAudit-clean
  • 01Decision LogOne row per engine run. No exceptions.Live
  • 02Position Risk RegisterWritten risk terms at entry, same day as fill.Live
  • 03Parameter Change LogRatified change control on every rule and input.Live
  • 04KPI DashboardsFull business instrumentation, reviewed monthly.Live
  • 05Broker ReconciliationInternal records verified against the source of truth.Live
Rule 01

Never automatic

Every action is a documented decision or a documented pre-commitment. Automation extends the operator — it never replaces the ruling.

Rule 02

Verify, never attest

Broker over workbook, workbook over memory. Every claim carries its source and timestamp, or it carries an UNVERIFIED flag.

Rule 03

No dummy data

A fake row in a real ledger compounds into a fake business. Placeholder numbers are prohibited everywhere, always.

Rule 04

Hard caps, not vibes

Exposure limits, concentration limits by theme and sector, and per-trade budgets are written numbers — enforced before entry, not debated after.

Rule 05

Circuit breakers

Portfolio heat is measured, and defined loss ladders trigger defined responses. Drawdown has a procedure, so it never needs a hero.

Rule 06

Change is governed

New rules require a written proposal, ratification, and a log entry before deployment. The system evolves — by amendment, never by drift.

03

A one-person firm with a payroll of agents

Ledger Capital Systems delegates work to AI agents the way a company hires employees: each one operates under a ratified operating agreement, subordinate to the Playbook, with defined authority and graduated autonomy. No agreement, no agent.

Employee #000Human

The Manager

Founder · Final Authority

Ratifies every rule, rules on every conflict, and owns every decision that matters. Agents nominate, monitor, and execute within grants — the Manager decides.

AUTHORITY — Absolute
Every autonomy grant flows from here
Employee #001Agent

The Operator

Execution · Dedicated Book

Runs a dedicated book under the strictest grant in the company — documented pre-commitments, human approval where the agreement demands it, a logged row for every run.

AUTHORITY — Graduated
Operates engines · never rewrites them
Employee #002Agent

SCOUT

Research · Nomination

Sweeps the screens, reads the instruments, and files evidence-first candidate cards. SCOUT nominates and cites — it never places an order and never asserts a verdict.

AUTHORITY — Read & report
Structured evidence or it didn’t happen
Employee #003Agent

WATCHTOWER

Monitoring · Reporting

Maintains the live trigger register, watches every line the business has drawn, and issues briefs and crossing notes. It reports crossings — it never adjudicates them.

AUTHORITY — Observe & flag
The one who never sleeps and never decides
Agent Authority, governed: engine math, gates, and vocabulary are identical for human and agent operators. An agreement may restrict what an agent does — it can never extend or modify the rules of the business. Every grant, promotion, and demotion is a logged event.
04

The systems are becoming the product

Everything above was built to run one book well. The next phase of the business is productizing that discipline — capital trading and management systems for operators who want governance, not just automation.

Operating daily

The governed-agent framework

Operating agreements, graduated autonomy, human-in-the-loop approvals, and structured logging — a working model for putting AI to work on real capital without giving up control.

Operating daily

Business instrumentation

Decision logs, risk registers, parameter change control, and KPI dashboards that keep a trading operation audit-clean — designed, built, and battle-tested in production.

In development

Agents & applications

The playbook, the instrumentation, and the agent roster — packaged into tools other disciplined operators can run. If that’s a build you want to follow or shape, reach out.

05

The founder

Cesar J. Prado, Founder & Operator of Ledger Capital Systems
Cesar J. Prado · Founder & Operator

Cesar J. Prado spent a decade in production control inside one of the highest-volume manufacturing environments in the world — production planning, material flow, scheduling, and the operational analytics that keep an assembly line fed.

Factories taught him the lesson this business is built on: output is a byproduct of process. Lines stay fed because someone wrote the schedule, tracked the WIP, and root-caused the miss — not because someone hoped.

In 2023 he brought that discipline to capital. Ledger Capital Systems is a one-person operation where every system, procedure, and record is designed, built, and operated by the founder — and where the operating standard is simple: if it isn’t written down, it isn’t real.

  • 2013 — 2023

    Production control, high-volume manufacturing

    A decade on the factory floor through multiple program ramps — durable habits in documentation, root-cause discipline, and clean handoffs.

  • 2023

    Founded Ledger Capital Systems

    A systematic trading business governed by a written playbook — codified rules, pass/fail gates, and hard risk limits from day one.

  • 2026

    The agent era

    Playbook v3.0 ratifies Agent Authority. SCOUT and WATCHTOWER join the payroll under the governed-agent framework; the systems begin their turn toward product.

06

Talk to the desk

Interested in the systems, the governed-agent framework, or the build itself — say so plainly and you’ll get the same back.

Ripon, California · USA