Simulation Lab · Stage 2

Build a virtual portfolio and track it forward.

Choose your capital, risk budget, modeled rate path and investment profile. RatesLab freezes the inception configuration and then appends observed daily NAV from completed market-close valuations without rewriting earlier history.

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Stage 2 · Daily MTM

Append-only valuation history

Each account waits for its first completed post-inception market close, fixes that valuation as its basis, and then adds one new NAV record for each later completed close. Existing NAV rows are never recalculated by the portal.

Loading daily valuation feed…

Create simulation

Set the portfolio assumptions

The implementation remains proprietary. The user controls only capital, profile, drawdown budget and the expected policy-rate path.

1 · Starting capital

2 · Investment profile

3 · Maximum drawdown budget

3.00%

0.5%1.5%3.0%4.0%5.0%

4 · Expected policy-rate path

This remains the investment thesis chosen at inception. Observed account MTM is tracked from completed market-close valuations and is not rewritten to force the chosen scenario to occur.

5 · Start date

TodayForward-starting only

Locked at account creation

Inception preview

What you are locking in

The preview uses the current model snapshot for the selected profile and scenario. It is a projection, not observed performance.

ProfileCore IncomeProprietary implementation

Scenario—Expected rate path

Projected annualized—At selected DD budget

Modeled max drawdown—Scenario path

Loading current modeled economics…

My simulations

Forward-starting shadow accounts

NAV journals are append-only in this browser. The shared market-close valuation feed is published separately and contains no proprietary implementation fields.

Simulation

Simulation account

ACTIVE · AWAITING FIRST COMPLETED CLOSE

Current value$0Observed NAV

Total P&L$0Since valuation basis

Total return0.00%Observed since start

Max drawdown0.00%Observed since start

Days active0Calendar days

Last valuationAwaitingCompleted market close

Observed account equity

The account starts at 0% P&L and waits for its first completed post-inception market close.

APPEND-ONLY

Inception projection

The original expected rate path remains attached to the account so observed results can be compared with the thesis chosen at inception.

Selected scenario—

Projected annualized return—

Projected max drawdown—

Model snapshot—

Valuation journal

Daily MTM / NAV history

Earlier rows are not rewritten

Date	Strategy MTM	Collateral	Daily P&L	Equity	Return	Drawdown

Stage 2 storage model: RatesLab publishes a privacy-safe, hash-chained sequence of completed-close profile valuation indices. Each browser account fixes its own post-inception basis and appends new NAV rows once per valuation date. The portal never backfills simulated historical P&L before inception and never rewrites a previously stored NAV row. User login and central cross-device account storage remain a later stage.

Next build stage

Stage 3 · Secure account login & central persistence

Move individual simulation definitions and NAV journals from browser storage into an authenticated database so the same shadow account can be accessed across devices while retaining the append-only valuation model.