Share on LinkedInShare on LinkedIn

ARTICLE · 10 MARCH 2022

Backtesting: Handle With Care

Mayer Brown
Mayer Brown
Contributor
Mayer Brown

Mayer Brown

Mayer Brown is a leading international law firm positioned to represent the world’s major...

View firm profile
Explore more from Mayer Brown

When using backtested results in prospectuses or any other advertising material, it is important to highlight any differences between data used to produce the backtested presentation...

United StatesCorporate/Commercial Law

When using backtested results in prospectuses or any other advertising material, it is important to highlight any differences between data used to produce the backtested presentation and the reference asset underlying any security or other instrument. For example, if a structured note is linked to an index that has three components, such as an equity index, US Treasury bills and a cash element, such as the secured overnight financing rate ("SOFR"), the backtested results of that index should simply be the result of applying the index methodology to past historical results of those three components. If, for any reason, the backtesting is applied to something other than those three hypothetical components, that should be disclosed. In this example, because SOFR did not exist prior to April 2018, if the backtested results covered a period prior to that time, there should be an explanation of what replaced historical SOFR results prior to April 2018 and why it did so.

In an SEC cease and desist order against a registered investment adviser (the "RIA"), the failure to follow these practices resulted in violations of the Investment Advisers Act of 1940 (the "Advisers Act").1

The RIA produced advertisements for its proprietary algorithmic trading strategy (the "Strategy"). The advertisements included hypothetical, backtested performance of the Strategy. However, there were undisclosed differences between the funds used to produce the backtested information and the funds used in actual clients' portfolios using the Strategy. The backtested Strategy relied on different securities when constructing a model portfolio, and a small number of the funds used in the backtest were not adequately correlated with the securities they replaced in the live Strategy.

According to the SEC, the RIA failed to adopt and implement policies and procedures reasonably designed to prevent the distribution of false or misleading advertisements. This failure was a violation of Section 206(4) of the Advisers Act.2

Footnotes

1 The cease and desist order is available at: https://www.sec.gov/litigation/admin/2022/ia-5945.pdf.

2 Section 206(4) of the Advisers Act reads, in part: "It shall be unlawful for any investment adviser... to engage in any act, practice, or course of business which is fraudulent, deceptive, or manipulative."

Originally published in REVERSEinquiries: Volume 05, Issue 01.
Click here to read the articles in this latest edition.

Visit us at mayerbrown.com

Mayer Brown is a global legal services provider comprising legal practices that are separate entities (the "Mayer Brown Practices"). The Mayer Brown Practices are: Mayer Brown LLP and Mayer Brown Europe – Brussels LLP, both limited liability partnerships established in Illinois USA; Mayer Brown International LLP, a limited liability partnership incorporated in England and Wales (authorized and regulated by the Solicitors Regulation Authority and registered in England and Wales number OC 303359); Mayer Brown, a SELAS established in France; Mayer Brown JSM, a Hong Kong partnership and its associated entities in Asia; and Tauil & Chequer Advogados, a Brazilian law partnership with which Mayer Brown is associated. "Mayer Brown" and the Mayer Brown logo are the trademarks of the Mayer Brown Practices in their respective jurisdictions.

© Copyright 2020. The Mayer Brown Practices. All rights reserved.

This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

Visit us at mayerbrown.com

Mayer Brown is a global services provider comprising associated legal practices that are separate entities, including Mayer Brown LLP (Illinois, USA), Mayer Brown International LLP (England & Wales), Mayer Brown (a Hong Kong partnership) and Tauil & Chequer Advogados (a Brazilian law partnership) and non-legal service providers, which provide consultancy services (collectively, the "Mayer Brown Practices"). The Mayer Brown Practices are established in various jurisdictions and may be a legal person or a partnership. PK Wong & Nair LLC ("PKWN") is the constituent Singapore law practice of our licensed joint law venture in Singapore, Mayer Brown PK Wong & Nair Pte. Ltd. Details of the individual Mayer Brown Practices and PKWN can be found in the Legal Notices section of our website. "Mayer Brown" and the Mayer Brown logo are the trademarks of Mayer Brown.

© Copyright 2026. The Mayer Brown Practices. All rights reserved.

This Mayer Brown article provides information and comments on legal issues and developments of interest. The foregoing is not a comprehensive treatment of the subject matter covered and is not intended to provide legal advice. Readers should seek specific legal advice before taking any action with respect to the matters discussed herein.

See more popular content from