Three engagements

Fixed scope / Fixed price / Fixed dates

E-01

€12,000

Payable in full at commissioning
2 weeks to delivery

Execution cost attribution

For brokers, prop firms and platform operators who need an independent measurement of what their own execution costs, separated from what their model or their traders are doing.

Question	Where does the gross edge go, and which part of the loss is attributable to execution rather than to the signal?
Covered	Fill-side attribution, including whether stop orders trigger on the bid or the ask; spread behaviour around rollover and session boundaries; clock alignment between your data and a reference source.
Delivered	Written report, reproducible notebook, and the raw measurement tables behind every figure.
You provide	Read-only historical extracts. Tick or bar data with a spread field, and fill records if you have them.

Method shown publicly in RN-001, where 93.8% of a cross-asset signal's gross edge was consumed once frictions were priced in.

E-02

From €30,000

Scoped, then fixed before signature
40% at signature
30% at interim review
30% on delivery
5–6 weeks to delivery

Provider transfer study

For firms whose models, pricing or risk limits were calibrated on one data source and now run on another, after a feed migration, a liquidity provider change, or a move from a retail terminal to an institutional feed.

Question	Which of your features survive the change of source, and which were artefacts of the original provider?
Covered	Provenance recovery of the historical fields, same-source parity reproduction, clock offset correction, then a feature-by-feature transfer test against the new source.
Delivered	Full transfer study, method documentation, a pre-registered falsification protocol, and a stated go/no-go on each feature.
Interim review	At the halfway point you receive the parity and alignment results before committing the second tranche. If parity fails, the engagement can be stopped there.

Method shown publicly in RN-002 and RN-003: same-source parity recovered on a historical spread field, a −180 minute clock offset corrected, and spread structure that still failed to transfer afterwards.

E-03

Scoped

Priced after the scoping call

Model validation review

For firms preparing to promote a model to capital, or defending one already there to an investor, a risk committee or a regulator.

Question	Does the evidence supporting this model distinguish historical fit from prospective validation, and does it survive a search-space correction?
Covered	Window and rule freezing, separation of in-sample from out-of-sample evidence, multiple-testing and deflated performance correction, and a written record of the negative results.
Delivered	Validation report and a promotion protocol you can reuse without ELARVEN.

Method shown publicly in RN-004 and RN-005.

Terms of independence

Written into every contract

These terms are the reason the work is worth commissioning. They are not negotiable per engagement.

Findings are not guaranteed to be favourable

The engagement is priced on method and time. A negative result is a delivered result, and it is invoiced in full.

Publication rights are fixed before work starts

Default: findings stay private to the client. ELARVEN may publish the method without naming the client or exposing their data. Any other arrangement is agreed in writing at scoping.

No commission from any provider

ELARVEN accepts no success fees, revenue share, referral fees or rebates from data vendors, brokers, liquidity providers or platform operators.

No live credentials

Engagements run on read-only historical extracts. ELARVEN does not request or accept trading accounts, write-access API keys, or connections to production systems.

Not investment advice

No signal service, no managed capital, no performance promise, no representation about future returns.

How an engagement starts

Four steps

Nothing is invoiced before the written scope is signed.

Scoping call

Forty-five minutes, no charge. You describe the data you hold and the question you need answered. If the question is outside what can be measured, you are told on the call.

Written scope

A fixed deliverable, a fixed price and fixed dates, with the publication and independence terms attached.

Data transfer

Read-only historical extracts under NDA. The first working day is spent verifying that the data can answer the question before any analysis is run.

Delivery

Written report, reproducible code, and a working session to walk your team through the method so the result can be checked rather than trusted.

Start here

Start with the question, not the proposal.

Write with the instrument, the date range and the source of your data, and what you currently cannot explain. You will get a direct answer on whether it is measurable before anyone talks about price.

contact@elarven.com

ELARVEN does not manage client capital, does not publish signals and accepts no commission from data or execution providers. Contracting entity details are set out in the research & legal notice.