Investors are urged to look for errors before validating stock purchases, Mark Roussin notes

Traders Union
All News
Market Voices
Challenge assumptions before buying stocks

Top Stories

Editors' Picks

Stocks

Crypto

Economics

Currencies

Commodities

Business & Wealth

Market Voices

23.07.2026

Investors are urged to look for errors before validating stock purchases, Mark Roussin notes — Challenge assumptions before buying stocks

Mark Roussin, founder and senior portfolio manager at Roussin Capital Management, encourages investors to prioritize self-critique when making investment decisions.

According to Roussin, a common mistake is buying a stock and then searching for reasons to justify the purchase, instead of first considering potential flaws in the investment thesis.

Loading...

The tweet was deleted by the author.

But we saved everything 🙂.

Roussin has previously commented on company fundamentals and price movements. He noted Nvidia’s $81.6 billion in revenue and 214% growth in earnings per share. In another report, he observed QCOM’s price swings from $179 in April to $260 in May, followed by a drop to $175 in July.

This material may contain third-party opinions, none of the data and information on this webpage constitutes investment advice according to our Disclaimer. While we adhere to strict Editorial Integrity, this post may contain references to products from our partners.

Did you like the article?

Editor's Picks for You

Bitcoin mining is getting greener, but the debate isn't over

By Anastasiia Chabaniuk
18 hours ago

Bitcoin mining is getting greener, but the debate isn't over

Editors' Picks

Asia's largest IPO: How CXMT became China's most valuable company

By Mikhail Vnuchkov
22 hours ago

Asia's largest IPO: How CXMT became China's most valuable company

Editors' Picks

Global fintech in 2026: Three trends that matter

By Pavlo Kot
Yesterday

Global fintech in 2026: Three trends that matter

Editors' Picks

All Editors' Top Picks

Latest Mark Roussin News

Mark Roussin: Market bubble claims questioned given current earnings multiples

By Mikhail Vnuchkov
17 hours ago

Mark Roussin: Market bubble claims questioned given current earnings multiples

Market Voices

Mark Roussin: Focus on earnings growth, cash flow and management execution

By Ivan Andriyenko
22.07.2026

Mark Roussin: Focus on earnings growth, cash flow and management execution

Market Voices

Consider if you would hold a stock for 5 years, Mark Roussin advises

By Eugene Komchuk
21.07.2026

Consider if you would hold a stock for 5 years, Mark Roussin advises

Market Voices

All Mark Roussin News

Anastasiia Chabaniuk
18 hours ago

Bitcoin mining is getting greener, but the debate isn't over

Mikhail Vnuchkov
22 hours ago

Asia's largest IPO: How CXMT became China's most valuable company

Pavlo Kot
Yesterday

Global fintech in 2026: Three trends that matter

Pavlo Kot
25.07.2026

From Jesus Christ to aliens: Polymarket's most absurd prediction markets

Andrey Mastykin
25.07.2026

Hunting crypto owners: Why criminals have gone offline

Jose Antonio Gastelum
8 min ago

TRX expands regulated U.S. market access, Justin Sun notes

Parshwa Turakhiya
13 min ago

Michael Pettis: Eight major Chinese provinces report GDP growth above national average

Artem Shendetskii
23 min ago

Adam Khoo: Investment rotation into industrial stocks drives strong portfolio performance

Daria Chernytska
53 min ago

Jordan Kerridge: Binance founder CZ makes public appearance at ASEAN Tech Summit Manila 2026

Ivan Andriyenko
1 hour ago

Dario Perkins: Lack of forward guidance makes surprise central bank decisions more impactful

Weekly Top Bonuses

Capitalcore

up to $2,500
deposit bonus for all clients

Your capital is at risk.

Top News

Olga Shendetskaya
18 hours ago

Treasury yields ease as investors turn to the Fed

Treasury yields ease as investors turn to the Fed

Hanna Syniavska
20 hours ago

U.S. stock futures rally as oil prices retreat

U.S. stock futures rally as oil prices retreat

Olga Shendetskaya
21 hours ago

CME Group launches futures on 55 major U.S. stocks

CME Group launches futures on 55 major U.S. stocks

Ivan Andriyenko
23 hours ago

Nvidia considers $250 billion support for OpenAI project

Nvidia considers $250 billion support for OpenAI project

Hanna Syniavska
Yesterday

Brent falls below $90 as Middle East tensions ease

Brent falls below $90 as Middle East tensions ease

Top 5 companies for you

United States

Live News

Anton Kharitonov
Now

Alphabet remains under pressure as AI investment concerns overshadow strong cloud growth

Anton Kharitonov
Now

Microsoft faces key earnings test as AI investment debate intensifies

Anton Kharitonov
Now

Apple approaches earnings as resilient momentum keeps shares near record highs

Mykhailo Ihnatenko
Now

Snowflake keeps bullish momentum intact above $270

Mykhailo Ihnatenko
Now

AMD stock seeks $565 as UBS lifts price target to $730

© IAFT Ltd., 2010-2026 All rights to the website are owned by IAFT Ltd.,
Registration number - HE 336186

Risk disclosure:

Information on the TradersUnion.com website is for informational purposes only and does not constitute any motive or suggestion to visitors to invest money. Moreover, we hereby warn you that trading on the Forex and CFD markets is always a high risk. According to the statistics, 75-89% of customers lose the funds invested and only 11-25% of traders earn a profit. Trading in futures and options carries substantial risk of loss and is not suitable for every investor.

That is why you should only invest money that you are prepared — or can afford — to lose at such high risks. Tradersunion.com does not provide any financial services, including investment or financial advisory services. Also, the Traders Union is not a broker and does not get money for trading in the Forex or CFD markets. Our website only provides information on brokers and the markets and helps its users to select the best brokerage company based on detailed information and objective analysis of brokers.
Disclaimer:

Traders Union (TradersUnion.com) shall not be liable for the consequences of trading decisions made by the Client and for the possible loss of his capital resulting from the use of this website and information published on it.

Forex market, CFD and cryptocurrency trading involves high risks and is not suitable for everyone. Before investing money, you need to adequately assess the level of your expertise and be aware of the risks, particularly in the context of trading with leverage. The information on this website is not intended for distribution or use by any person in any country or jurisdiction, where such distribution or use would be in violation of the local law or regulation. Any payments by Traders Union (TradersUnion.com) to the users of our website shall be legally interpreted solely as an incentive on our part for the activity on the website in the form of a deduction of a part of the advertising income; they shall not be a subject of any claims of our users or our obligations, a subject of disputes, as well as cannot be considered in relation to the services provided to users by brokers, both in fact and in their completeness and volume. The administration of the website shall not be liable for the content of user comments and reviews about the companies and shall not verify whether the authors of the reviews are indeed real clients of a specific company. All reviews, both negative and positive are published on the website without verification of their reliability; only offensive reviews that call for violence or any kind of discrimination and also reviews published from one group of IP addresses are moderated and removed. The authors of the materials shall be fully liable for the accuracy, completeness and impartiality of any information in the articles and reviews, including in the context of their use or mention of any brand names or trademarks. All mentions of the names of companies and their brands in any materials on the website shall be made in the context of communication of socially important information to the people about their activities by independent journalists, who are the authors. All evaluations and indicators on the website express the subjective opinion of the authors of the reviews (articles) and shall not be viewed as accurate statements and be a subject of disputes and claims against Traders Union.
Disclosure of advertisers and revenues:

All the services on the Tradersunion.com website are free for you to use. Our team spends thousands of hours per annum researching brokers and gathering information about them to help investors all over the world to choose reliable companies and to avoid fraudsters.

Indeed, the curating, sourcing, and organization of this process requires substantial financial investment by Tradersunion.com, which the website earns in the form of advertising payments. There are two types of advertising services on the website — direct advertising or partner (broker) participation programs. However, no services purchased by our partners shall affect the recommendations on our website, or our opinions, or ratings. Our ratings are based on our objective rating criteria and methodology; and the results are always equally and fairly applied to each broker. The work of our content authors and research groups does not involve any interaction with our advertisers and they do not have access to data concerning the amount of advertising purchased. For over 10 years we consider our independence, absolute openness, and objectivity as our main priority. Please follow the links to each of our affiliated broker’s websites. This will help Tradersunion.com to continue to provide our services to you for free.