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Inside KOT4X: $296 Million Flowed Through an Unregistered CFD Broker

Online trading and securities enforcement

Inside KOT4X: $296 Million Flowed Through an Unregistered CFD Broker

The SEC found that social media influencer Quillan Black, known online as Cue Banks, marketed and operated KOT4X while U.S. customers traded leveraged stock-based contracts through a broker that had never registered with the agency.

Customers approaching KOT4X saw a branded broker. They registered through its website, viewed balances there, and understood their trades to be conducted through KOT4X. Behind that interface, outside providers supplied much of the brokerage machinery. The SEC’s order found that outsourcing the infrastructure did not remove the registration obligation from the people soliciting trades and operating the business.

Black, a social media influencer known as Cue Banks, launched KOT4X with another individual in 2019. KOT4X was incorporated in St. Vincent and the Grenadines, operated in the United States, and had never registered with the SEC. Neither had Black.

$296M Approximate customer deposits into KOT4X trading accounts from 2019 through 2025 Not an investor-loss figure
37 European and U.S. equities used as the basis for stock CFDs offered through KOT4X SEC order finding
$125K Civil money penalty ordered against Black Payable to the U.S. Treasury general fund
2 years Length of the industry bar before Black may apply for reentry Reentry is not automatic

A brokerage brand built on outsourced machinery

KOT4X contracted with providers offering ready-to-operate, white-label brokerage services. They designed the website and supplied the trading application, back-office systems, pricing, liquidity, custody, trading support, and Know Your Customer checks.

That arrangement divided the customer-facing brand from the systems executing and supporting trades. The customer journey described by the SEC worked like this:

1

Promotion

Black marketed KOT4X through his online network and recruited affiliates who received transaction-based compensation.

2

Registration

Customers signed up through the KOT4X website. U.S. residents were allowed to register and trade stock-based CFDs.

3

Crypto funding

Customers funded accounts with Bitcoin or other crypto assets held in a margin account by the service providers.

4

Trading

Trades ran through a third-party application, while customers viewed histories and balances through KOT4X.

Black’s role extended beyond promotion. According to the findings, he dealt with customers he brought to the platform, raised their questions with the service providers, sought information about their trades, processed certain withdrawals, and monitored the business.

The stock never changed hands

A contract for differences, or CFD, lets a trader speculate on an asset’s price without owning the asset. The parties exchange the difference between the price when the position opens and when it closes.

A long position gains if the referenced price rises and loses if it falls. A short position works in reverse. KOT4X offered significant leverage, which increased the potential upside and downside. The SEC order does not quantify the leverage ratios used or resulting customer losses.

The violation addressed in this proceeding was unregistered broker activity. The supplied order does not make a fraud finding, calculate customer losses, or state that the approximately $296 million in deposits was misappropriated.

Promotion and compensation were tied to trading

KOT4X charged customers a commission on each trade and shared part of it with the white-label providers. It also received portions of spread revenue and fees charged when customers kept trades open past market close. Black received part of the commissions and spreads as compensation.

Black also recruited affiliates to promote KOT4X to their own networks. Those affiliates received transaction-based compensation. Black and his partner separately referred other people to launch brokers using the same providers and received compensation based on completed trades through those brokers, including stock-based CFD trades.

What $296 million means: It is the approximate amount customers deposited into KOT4X trading accounts across the relevant period. The order says most CFD activity was based on foreign exchange. It does not identify how much of the deposit total funded stock CFDs, how much Black earned, or how much customers gained or lost.

U.S. traders could enter a leveraged market with no registered broker

Some countries were restricted during the customer-verification process, but U.S. residents were permitted to register and trade stock-based CFDs. Customers did so regularly, according to the order.

The documented risk was structural. Customers were trading leveraged products tied to securities through an entity that had never registered with the SEC. Registration does not eliminate trading losses, but it places a broker within a regulatory system of oversight and obligations. The order does not identify the number of customers, describe individual experiences, or establish that any particular trader suffered a loss because KOT4X was unregistered.

Six years from launch to shutdown

2019

KOT4X launches

Black and another individual establish the branded brokerage using third-party white-label providers.

2019 to 2025

Marketing, deposits, and trading

Black promotes the platform, recruits affiliates, supports customers, and receives trade-linked compensation. Customers deposit approximately $296 million.

September 2025

Trading ends

KOT4X stops offering all products, including stock-based CFDs, and is no longer in operation.

September 30, 2026

The SEC enters its order

The Commission accepts Black’s settlement offer, makes findings, and imposes a penalty, cease-and-desist order, and temporary industry bar.

A penalty, an order to stop, and a temporary bar

The Commission imposed three principal sanctions. None of them is described as customer compensation in the supplied order.

Cease and desist

Black must stop committing or causing present and future violations of the broker-registration provision.

Two-year bar

He is barred from association with several categories of regulated securities firms, with a right to apply for reentry after two years.

$125,000 penalty

The civil penalty is due within 10 days and is transferred to the general fund of the U.S. Treasury.

Black consented to the order without admitting its findings, apart from the Commission’s jurisdiction and a specific bankruptcy provision. Solely for exceptions to discharge under the Bankruptcy Code, the order states that its findings are true and admitted by Black.

The Commission characterized the registration violation as willful. Under the legal standard quoted in the order, that means knowing what one is doing. It does not require proof that the person knew the conduct violated federal securities law.

What the public order does not answer

The enforcement record establishes the brokerage mechanism and the registration violation, but it provides only a partial financial picture.

Unresolved by the supplied record

  • How many customers used KOT4X, including how many were U.S. residents.
  • What portion of the $296 million in deposits was used for the 37 stock-based CFDs.
  • How much customers collectively gained or lost.
  • How much Black, his partner, affiliates, and service providers received.
  • Whether customers experienced withdrawal failures or other account problems.
  • Why the order imposed no disgorgement or restitution.

The Commission’s theory is narrow but consequential: a customer-facing operator cannot outsource the software, custody, pricing, and back office and assume the broker function disappears. Yet the order leaves the economic outcome largely opaque. It documents the scale of deposits and the path into the market, but not what that market ultimately cost the people who entered it.

Source: Securities and Exchange Commission administrative order, In the Matter of Quillan Black, Exchange Act Release No. 106538, Administrative Proceeding File No. 3-22759, dated September 30, 2026. This article relies solely on the supplied order.
Aleeia
Aleeia

I'm Aleeia, the creator of this website.

I have 6+ years of experience as an independent researcher covering corporate misconduct, sourced from legal documents, regulatory filings, and professional legal databases.

My background includes a Supply Chain Management degree from Michigan State University's Eli Broad College of Business, and years working inside the industries I now cover.

Every post on this site was either written or personally reviewed and edited by me before publication.

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