Worked example
Practising on D Prime (formerly Doo Prime)'s numbers
This is an exercise sheet, not a review. We are going to take three things that D Prime (formerly Doo Prime) publishes — a spread, a ladder of account types and a list of licences — and turn each of them into something you can do arithmetic with. By the end you should be able to repeat the whole exercise on any firm you come across, which is the actual skill being taught.
The figures we are working from
Nothing below is our estimate. Where a firm has not published something, or we could not read it on a source we trust, the box says so instead of guessing — a habit worth copying when you build your own broker notes.
Exercise one — turn the spread into money
D Prime (formerly Doo Prime) does not publish a EUR/USD spread we were able to verify, so there is no honest arithmetic to do on this page. Do not substitute a number you read on a comparison site: an unverified spread quietly becomes an unverified cost, and then an unverified plan. Use one of the other examples on the practice index for this exercise and come back to this file for the account ladder below.
Exercise two — read the account ladder
Account tiers are a pricing structure dressed as a status ladder. D Prime (formerly Doo Prime) offers 3 rungs. Read them as a question — what does each rung ask of me, and what does it give back? — rather than as a set of prizes to climb towards.
- CentThe entry rung. Whatever the published spread applies to, it is almost always this one — so this is the rung your arithmetic above describes.
- Standard STPA higher rung usually trades a tighter spread for a commission, a larger deposit, or a status test. Convert both pricing models to money per lot before you decide either is cheaper.
- ECNA higher rung usually trades a tighter spread for a commission, a larger deposit, or a status test. Convert both pricing models to money per lot before you decide either is cheaper.
Account names as published: Cent, Standard STP, ECN. Platforms listed: MT4, MT5, TradingView, Doo Prime InTrade.
Exercise three — what this licence list means for you
A long licence list is not automatically a good sign. What matters to a beginner is a narrower question: which entity would hold my money, and who supervises that entity? Those are often not the same as the impressive name at the top of the list. Here are D Prime (formerly Doo Prime)'s lines, each with a plain reading.
| Regulator | Entity on the register | Number | What that means for a beginner |
|---|---|---|---|
| FCA · United Kingdom | RKX Financial UK Limited (formerly Doo Clearing Limited) | 833414 | a top-tier regulator: compensation scheme, capital rules and a public register you can search yourself |
| ASIC · Australia | Doo Financial Australia Limited | AFSL 222650 | a top-tier regulator: compensation scheme, capital rules and a public register you can search yourself |
| SEC / FINRA (US broker-dealer, group affiliate) · United States | Elish & Elish Inc. | SEC 8-41551 / CRD 24409 | a top-tier regulator: compensation scheme, capital rules and a public register you can search yourself |
| FSA Seychelles · Seychelles | Doo Prime Seychelles Limited | SD090 | an offshore registration: a company exists and pays a fee, but expect little practical recourse from that entity — no longer active |
| VFSC · Vanuatu | Doo Prime Vanuatu Limited (presented as D Prime Vanuatu Limited on the broker's site) | 700238 | an offshore registration: a company exists and pays a fee, but expect little practical recourse from that entity |
3 of these lines are top-tier — held by RKX Financial UK Limited (formerly Doo Clearing Limited), Doo Financial Australia Limited, Elish & Elish Inc.. If you are onboarded to a different entity than those, the protections attached to the top-tier line are not yours, however prominently the regulator's initials appear in the marketing. 2 lines are offshore registrations; treat those as a company address rather than as supervision.
The record behind these numbers
- The broker's website (dooprime.com) presents the brand as 'D Prime' and its footer names D Prime Vanuatu Limited, regulated by the Vanuatu Financial Services Commission under company number 700238; the Doo Group offshore CFDs arm rebranded from Doo Prime to D Prime in 2025 (checked 21 August 2026).
- Companies House records that Doo Clearing Limited, the Doo Group's UK entity, was renamed RKX Financial UK Limited on 6 January 2026; the FCA register lists RKX Financial UK Limited under firm reference number 833414 and the brand operates at rkxfinancial.co.uk (https://find-and-update.company-information.service.gov.uk/company/10684079).
- Doo Prime Seychelles Limited no longer appears on the FSA Seychelles capital-markets register page (https://fsaseychelles.sc/regulated-entities/capital-markets, checked 21 August 2026).
- The FCA, ASIC and SEC/FINRA registrations belong to sibling Doo Group companies (Doo Clearing, Doo Financial Australia, Elish & Elish Inc.), not to the Doo Prime retail entity.
- Doo Prime's website warns US visitors that services are not provided in their jurisdiction and that use is governed by the laws of Vanuatu.
- Doo Group states it was established in 2014.
What we could not verify
The following are unconfirmed and are deliberately left blank rather than estimated: headquarters; negative balance protection; exact maximum leverage; typical EUR/USD spread; account type names and minimum deposits (secondary sources give $0 and $100); typical EUR/USD spread (source only gave an advertised 'from 0.0' raw-account figure); current status of FSA Seychelles licence SD090 — the entity is absent from the FSA capital-markets register page and from the current broker website (checked 21 August 2026). Confidence in this file overall: medium. When you build your own notes on a firm, keep a list like this one — the gaps are more useful than the figures, because they tell you what to go and check.
Run the same exercise on another firm
pipdojo.com does not rank brokers, does not award badges and does not tell you where to open an account. This page exists so the arithmetic you learn in the curriculum has real numbers to bite on.