Portfolio management. Risk. Investment intelligence.

The whole picture.
One book.

Your portfolio, the thinking behind it, and what comes next.
Connected in one investment workspace.

See OneBook in action
Built for focused investment teamsExplore OneBook 01 — 08

For the way you invest

Hedge fundsAsset managersFamily offices
01 / The platformClarity across the investment lifecycle

Run the book.
Keep the context.

A position tells you what you own.
OneBook connects it to why.

Bring positions, cash, portfolio proposals, risk and research into one environment. Move from understanding the current book to evaluating the next decision, with the evidence still attached.

OneBook / WorkspaceIllustrative product views
OneBook portfolio workbench with current and target weights, proposed orders, cash impact and turnover

From the current book to your next portfolio change.

Current weights → target weights → proposed orders
01

One portfolio view

Positions, cash and exposures connected to the same portfolio state.

02

Context before action

Research, scenarios and risk alongside the proposed change.

03

A record that stays

Rationale, approvals and outcomes preserved for the next review.

02 / A connected workflowFrom conviction to consequence

Good decisions don’t
happen in isolation.

Neither should your tools.
Keep the thesis, the proposal and the risk
in the same conversation.

A portfolio decision, connected

Increase a position.

3%6%

The trade is only part of the story.

  1. 01

    What changed?

    Link the updated thesis and supporting evidence.

  2. 02

    What does it do to the book?

    Compare cash, exposure, concentration and pre-trade risk.

  3. 03

    Who needs to review it?

    Keep policy checks, exceptions and approvals together.

  4. 04

    What did we learn?

    Review the outcome against the original decision state.

One versioned Decision Packet. The thesis, portfolio snapshot, proposal, risk and approval history behind a material change.

Explore the record
03 / Built for the workLess reconstruction. More understanding.

A clearer view.
Before and after the decision.

OneBook pre-trade analysis comparing current and proposed portfolio risk
Portfolio & risk

Understand the impact
before you act.

Compare the current and proposed portfolio. Review risk budgets, concentration, factor exposure and policy limits alongside the change that produced them.

Explore investment workflows
OneBook performance attribution separating allocation, selection and position contribution
Attribution & investment memory

Know what worked.
Remember why.

Trace results through the portfolio to individual positions. Bring the original thesis, sizing and accepted risks into the outcome review, so the reasoning survives the cycle.

See the decision lifecycle
04 / Built for the decision roomOne record. A shared understanding.

The same decision record.
Different institutional needs.

Portfolio Manager

Move from conviction to a risk-checked proposal without another reconciliation cycle.

Review the book, size the change, generate order intent, see resulting risk and exceptions, and preserve the rationale in one workflow.

CIO / Head of Investments

Increase team leverage without losing control.

Review thesis changes, portfolio impact, material dependencies, approvals and expected outcomes through one IC-ready decision record.

Risk / COO

Make exceptions visible, explainable and owned.

Data-quality issues, stale calculations, policy breaches, waivers and approvals remain linked to the exact proposal and responsible owner.

CTO / Security

Know which system is authoritative and how access is controlled.

Review source authority, identities, scopes, deployment boundaries, lineage, audit, exportability and the responsibility for operational exceptions.

Family Office Principal

Keep the house view and investment memory inside the firm.

Preserve decisions, approvals and outcomes in a private environment that remains usable when analysts, advisers or the CIO change.

05 / Your environmentConnected by design. Private by deployment.

Your workflow.
Your infrastructure.
Your OneBook.

Start where your team needs clarity.

Connect OneBook to the systems you already use. Configure the portfolio views, controls and access around your investment process.

Discuss your setup
Broker & custodianPMS & OMSResearch & data
OneBookPortfolio · Risk · Decision record
WorkspaceAPISDKMCP

One permission model. Connected investment context.

Private deployment

A dedicated environment
for each client.

OneBook can be deployed as a dedicated single-tenant environment on AWS, GCP, OCI or another approved client-controlled private-cloud environment.

Dedicated tenant

Client-specific environment and service boundary.

Identity and access

Explicit users, service identities, roles and scopes.

Controlled connectivity

Approved source systems, credentials, interfaces and network paths.

Audited operations

Versioned access, calculations, approvals and system actions.

Client data boundary

Client information is not used as a shared cross-client decision dataset.

Due diligence

Security and architecture documentation is available during the review process.

06 / Commercial scopeA focused starting point. An agreed scope.

OneBook Core starts at
US$30,000 per year.

Commercial scope depends on the number of books, users, integrations, workflows and control requirements.

OneBook Core

From US$30,000 per year

  • one portfolio book
  • one primary PM/CIO workflow
  • Decision Packets
  • portfolio proposals
  • core risk and policy controls
  • attribution and replay
  • dedicated single-tenant environment
  • standard connectors
  • focused onboarding
  • support and product updates
Discuss your workflow

The starting price does not imply that every possible module or integration is included.

Founding client engagement

Limited availability

A broader initial scope.
A jointly defined engagement.

For selected early institutional clients requiring a broader initial scope.

  • jointly agreed workflow scope
  • additional integrations or reports
  • policy and control configuration
  • structured operating reviews
  • up to 150 hours of agreed workflow engineering during the first contract year

The 150 hours of workflow engineering apply to the first contract year.

The allocation is jointly scoped, non-transferable, non-cumulative and does not create a separate client-specific product fork.

Commercial terms are defined separately from the OneBook Core starting price.

Third-party market-data licences, cloud infrastructure and non-standard external-vendor charges are scoped separately unless stated in the order form.

07 / Clear boundariesA deliberate product focus

Keep the systems
that already do their job.

OneBook is

  • the authoritative Decision Packet record
  • the authoritative portfolio-proposal state
  • proposal-linked risk and policy evidence
  • explicit exception and approval ownership
  • execution references connected to the decision
  • outcome review and replay
  • a private control layer above the existing stack

OneBook is not

  • a broker
  • a custodian
  • a fund administrator
  • an execution venue
  • the official accounting ledger
  • a transfer-agency platform
  • a market-data licence
  • a required multi-year front-to-back replacement

Best fit today

  • active public-market hedge funds
  • boutique asset managers
  • focused family offices
  • approximately one to five PMs
  • equities, ETFs and liquid public-market portfolios
  • an existing PMS, broker, custodian or administrator state
  • fragmented thesis, proposal, risk and approval workflows

Not the primary focus today for

  • high-frequency trading
  • full fund accounting and transfer agency
  • complex derivatives lifecycle management
  • private-equity waterfall accounting
  • full alternatives administration
  • global execution desks with thousands of users
  • immediate replacement of a broad enterprise OMS

OneBook starts where the systems of record stop: at the complete state of the investment decision.

How we compare

08 / A practical starting point

Start with
one real workflow.

We’ll work through the book, the systems
and the decisions your team makes.

Talk to the team
What does OneBook bring together?

Portfolio management, positions and cash, portfolio proposals, risk, research context and decision records. The scope is configured around your team’s workflow and deployment.

Can we keep our existing systems?

Yes. OneBook can connect to an existing PMS, OMS, broker, custodian and research stack. We establish the authoritative sources, required integrations and operating boundaries during discovery.

Can OneBook run privately?

Private single-tenant deployment is available. Infrastructure, access, data boundaries and operational responsibilities are agreed for your environment.

Where do we start?

Choose a concrete workflow, such as a portfolio rebalance or pre-trade risk review. A walkthrough maps your source systems, portfolio state, controls and expected outputs before agreeing the implementation scope.

How is OneBook priced?

OneBook Core starts at US$30,000 per year. The final scope depends on books, users, integrations, workflows and control requirements. Third-party market-data licences, cloud infrastructure and non-standard vendor charges are scoped separately unless stated in the order form.

OneBook by QuantJourney

Bring your next
decision into focus.

See OneBook around the way your team invests.

Request a private walkthrough