Investing

Don't Make Investment Decisions Based on ‘covfefe’

Don't Make Investment Decisions Based on ‘covfefe’

Don't Make Investment Decisions Based on ‘covfefe’

Zoe Team

3 min read

A financial advisor reviewing a plan with two clients at a table

Key Takeaways

Key Takeaways

  • Political news and events like social media trends should not drive long-term investment decisions.

  • Historical data suggests market returns are influenced more by broader economic conditions than specific presidential actions.

  • Staying disciplined with a diversified portfolio is more effective than reacting to daily political noise.

Frequently Asked Questions

Frequently Asked Questions

Does the president impact the market significantly?

While political rhetoric can cause short-term market volatility, fundamental economic drivers and corporate performance have a much larger long-term impact.

Should I trade based on political headlines?

No, reacting to political news or social media trends often leads to emotional decision-making and poor long-term investment outcomes.

How can I stay calm during political shifts?

Maintain focus on your long-term financial goals and adhere to a diversified investment strategy rather than trying to time the market based on news.

In this article: Is there a relationship between political parties in power and market returns? Does the president actually have a significant impact on the market?

In my blog, “Markets are stable because the world is in a better place”, I got a fair bit of pushback from readers (which I love) on our research which explained that policy uncertainty matters less to the market in the medium term than you would think.

“There’s no way the market doesn’t care about Trump! If his tax policy is implemented… it matters a lot!” and “Did you see his last Tweet? If he is losing his mind we are all doomed!”. My personal favorite was “Republican-leaning presidents who tend to be more “investor-friendly” go hand-in-hand with bull stock markets… so if Trump doesn’t deliver the market will crash”.

First off, there has been academic research (here and here) that shows that US stock market returns have in fact been much higher under Democratic presidents than under Republican presidents. But as is often the case, the story doesn’t stop there. Our friends at Research Affiliates, who’s evidence-based research I very much respect, take it one step further. They recently published a white paper that found NO systematic relationship between a political party in power & stock market returns.

Their first interesting observation is “that a Republican was president during the two great financial and economic crashes that began in 1929 and in 2008, respectively; unsurprisingly, a Democrat held the office of president during the immense subsequent recoveries.” Although this certainly grabs your attention, the results were driven largely by only two observations (which is not what you want to here as data scientists).

They went the extra mile and did what you call (in nerd-statistics land) an “out of sample test.” They asked themselves what would happen if they apply the same methodology to other countries for similar periods? Do we get similar results? So they picked Australia, Canada, Germany, France, and the UK because each has a developed stock market, and each had experienced reversals in political control over the last several decades between left-leaning and right-leaning parties. When the same type of test was applied to these countries, market returns during left-party power was not significantly different to returns during right-party power. Basically, there is nothing to see here folks!

Now the keen observer might say “wait a minute, how can you compare these countries to the US?!” after all, conservatives in Canada are to the left of liberals in the US, and liberals in Europe and North American are very different to each other. All solid points, but the key here is that the data results were not even close.

Why should I care?

The above research tells us that there is no strong relationship between political parties in power and market returns. In addition, our research discussed in past blogs has shown that there is no relationship between short-term political uncertainty and medium- and long-term market returns. What does this mean for you reading this? Do not make long-term investment decisions based on @realDonaldTrumps incoherent Tweets, the cover of US Today or what you see on CNN or Fox, sometimes it’s all a bunch of covfefe.

See The Top Local Financial Planners Near You

In this article: Is there a relationship between political parties in power and market returns? Does the president actually have a significant impact on the market?

In my blog, “Markets are stable because the world is in a better place”, I got a fair bit of pushback from readers (which I love) on our research which explained that policy uncertainty matters less to the market in the medium term than you would think.

“There’s no way the market doesn’t care about Trump! If his tax policy is implemented… it matters a lot!” and “Did you see his last Tweet? If he is losing his mind we are all doomed!”. My personal favorite was “Republican-leaning presidents who tend to be more “investor-friendly” go hand-in-hand with bull stock markets… so if Trump doesn’t deliver the market will crash”.

First off, there has been academic research (here and here) that shows that US stock market returns have in fact been much higher under Democratic presidents than under Republican presidents. But as is often the case, the story doesn’t stop there. Our friends at Research Affiliates, who’s evidence-based research I very much respect, take it one step further. They recently published a white paper that found NO systematic relationship between a political party in power & stock market returns.

Their first interesting observation is “that a Republican was president during the two great financial and economic crashes that began in 1929 and in 2008, respectively; unsurprisingly, a Democrat held the office of president during the immense subsequent recoveries.” Although this certainly grabs your attention, the results were driven largely by only two observations (which is not what you want to here as data scientists).

They went the extra mile and did what you call (in nerd-statistics land) an “out of sample test.” They asked themselves what would happen if they apply the same methodology to other countries for similar periods? Do we get similar results? So they picked Australia, Canada, Germany, France, and the UK because each has a developed stock market, and each had experienced reversals in political control over the last several decades between left-leaning and right-leaning parties. When the same type of test was applied to these countries, market returns during left-party power was not significantly different to returns during right-party power. Basically, there is nothing to see here folks!

Now the keen observer might say “wait a minute, how can you compare these countries to the US?!” after all, conservatives in Canada are to the left of liberals in the US, and liberals in Europe and North American are very different to each other. All solid points, but the key here is that the data results were not even close.

Why should I care?

The above research tells us that there is no strong relationship between political parties in power and market returns. In addition, our research discussed in past blogs has shown that there is no relationship between short-term political uncertainty and medium- and long-term market returns. What does this mean for you reading this? Do not make long-term investment decisions based on @realDonaldTrumps incoherent Tweets, the cover of US Today or what you see on CNN or Fox, sometimes it’s all a bunch of covfefe.

See The Top Local Financial Planners Near You

Disclosures: Zoe Financial, Inc. ("Zoe Financial") is an investment adviser registered with the U.S. Securities and Exchange Commission. Registration does not imply a certain level of skill or training. Zoe Financial provides investment advisory services and access to independent registered investment advisers through its platform. The information provided by Zoe Financial is for educational and informational purposes only and should not be construed as personalized investment advice or as an offer to buy or sell any security. All investments involve risk, including possible loss of principal. Past performance is not indicative of future results. Clients should consult with their own financial, tax, or legal professionals before making any investment decisions. The material presented by Zoe Financial is for informational purposes only and is not intended to serve as a substitute for personalized investment advice or as a recommendation or solicitation of any particular security, strategy, or investment product. Material presented has been gathered from sources believed to be reliable, however Adviser cannot guarantee the accuracy or completeness of such information, and certain information presented here may have been condensed or summarized from its original source. Past performance is no guarantee of future results. Zoe Financial does not provide legal or tax advice, and nothing contained in these materials should be taken as legal or tax advice. SEC Registration does not constitute an endorsement of Zoe Financial by the SEC nor does it indicate that Zoe Financial has attained a particular level of skill or ability. The sole purpose of this material is to inform, and it in no way is intended to be an offer or solicitation to purchase or sell any security, other investment or service, or to attract any funds or deposits. Investments mentioned may not be appropriate for all clients. Before making any investment, each investor should carefully consider the risks associated with the investment, as discussed in the applicable offering memorandum, and make a determination based upon their own particular circumstances, that the investment is consistent with their investment objectives and risk tolerance. Lower expenses do not guarantee better investment performance. Certain information contained herein may constitute forward-looking statements. Due to various risks and uncertainties, actual events, results or the performance of a fund may differ materially from those reflected or contemplated in such forward-looking statements.

Disclosure: This page is not investment advice and should not be relied on for such advice or as a substitute for consultation with professional accounting, tax, legal or financial advisors. The observations of industry trends should not be read as recommendations for stocks or sectors.


Investment advisory services are provided by Zoe Financial, Inc. (Zoe Financial), an investment adviser registered with the U.S. Securities and Exchange Commission (SEC). Registration does not imply a certain level of skill or training. Learn more about Zoe Financial on the SEC’s Investment Adviser Public Disclosure website. Brokerage services are provided by Zoe Securities LLC and Apex Clearing Corporation, members of the Financial Industry Regulatory Authority Inc. (FINRA) and Securities Investor Protection Corporation (SIPC). Learn more about Zoe Securities and Apex on FINRA’s BrokerCheck website.

The information in the visuals above is for illustrative purposes only and does not represent an actual user's account, balance, or return. Zoe Financial does not provide tax or legal advice.

Explore the Zoe Wealth Platform with AI

Some of this content may have been generated with the assistance of AI. Please review and sense-check all outputs, as AI tools can occasionally produce incomplete or inaccurate information.
In certain situations, you may be required to disclose that the content was “generated by AI.” Please confirm any specific disclosure or labelling requirements with Compliance.

(646) 680-9244

support@zoefin.com

666 Third Ave, 6th Floor
New York, NY, 10017

Copyright © 2026 Zoe Financial, Inc. | All rights reserved

Disclosure: This page is not investment advice and should not be relied on for such advice or as a substitute for consultation with professional accounting, tax, legal or financial advisors. The observations of industry trends should not be read as recommendations for stocks or sectors.


Investment advisory services are provided by Zoe Financial, Inc. (Zoe Financial), an investment adviser registered with the U.S. Securities and Exchange Commission (SEC). Registration does not imply a certain level of skill or training. Learn more about Zoe Financial on the SEC’s Investment Adviser Public Disclosure website. Brokerage services are provided by Zoe Securities LLC and Apex Clearing Corporation, members of the Financial Industry Regulatory Authority Inc. (FINRA) and Securities Investor Protection Corporation (SIPC). Learn more about Zoe Securities and Apex on FINRA’s BrokerCheck website.

The information in the visuals above is for illustrative purposes only and does not represent an actual user's account, balance, or return. Zoe Financial does not provide tax or legal advice.

Explore the Zoe Wealth Platform with AI

Some of this content may have been generated with the assistance of AI. Please review and sense-check all outputs, as AI tools can occasionally produce incomplete or inaccurate information.
In certain situations, you may be required to disclose that the content was “generated by AI.” Please confirm any specific disclosure or labelling requirements with Compliance.

(646) 680-9244

support@zoefin.com

666 Third Ave, 6th Floor
New York, NY, 10017

Copyright © 2026 Zoe Financial, Inc. | All rights reserved

Disclosure: This page is not investment advice and should not be relied on for such advice or as a substitute for consultation with professional accounting, tax, legal or financial advisors. The observations of industry trends should not be read as recommendations for stocks or sectors.


Investment advisory services are provided by Zoe Financial, Inc. (Zoe Financial), an investment adviser registered with the U.S. Securities and Exchange Commission (SEC). Registration does not imply a certain level of skill or training. Learn more about Zoe Financial on the SEC’s Investment Adviser Public Disclosure website. Brokerage services are provided by Zoe Securities LLC and Apex Clearing Corporation, members of the Financial Industry Regulatory Authority Inc. (FINRA) and Securities Investor Protection Corporation (SIPC). Learn more about Zoe Securities and Apex on FINRA’s BrokerCheck website.

The information in the visuals above is for illustrative purposes only and does not represent an actual user's account, balance, or return. Zoe Financial does not provide tax or legal advice.

Explore the Zoe Wealth Platform with AI

Some of this content may have been generated with the assistance of AI. Please review and sense-check all outputs, as AI tools can occasionally produce incomplete or inaccurate information.
In certain situations, you may be required to disclose that the content was “generated by AI.” Please confirm any specific disclosure or labelling requirements with Compliance.

(646) 680-9244

support@zoefin.com

666 Third Ave, 6th Floor
New York, NY, 10017

Copyright © 2025 Zoe Financial, Inc. | All rights reserved