Fact Check

Does the Dow Jones Do Worse Under Republican Presidents?

A Facebook meme purporting to prove that the Dow suffers under Republican presidencies ignores key data.

Published Feb 8, 2018

The seven biggest one-day Dow Jones points drops took place during Republican presidencies, showing that Republicans are not "good for the economy."
What's True

The seven biggest one-day point drops in Dow Jones history did take place during Republican presidencies.

What's False

Points drops are a skewed measure of stock market indices; Nine of the 10 biggest one-day percentage increases in history took place during Republican presidencies; stock market changes often happen regardless (or in spite) of the identity, party affiliation and policies of a given president.

After the Dow Jones Industrial Average lost a historic 1,175 points in a single day in February 2018, the left-wing Facebook page Occupy Democrats was keen to point out a trend. In a 6 February meme, the page listed what it called the "Biggest One-Day Drops in Dow Jones History," along with the name of the U.S. president in office at the time of each point drop.

According to the meme, each of the largest drops occurred during the presidencies of Donald Trump and George W. Bush -- both Republicans. The meme concluded: "Share this for your friends who STILL think Republicans are GOOD for the economy!"

The meme correctly lists the seven biggest one-day points drops in Dow Jones history, which all took place during the tenure of two Republican presidents, though it leaves out the eighth, ninth and 10th, which occurred with Democrats Bill Clinton and Barack Obama in the White House.

The main problem with the meme, however, is that its conclusion (that the numbers show which president is good for the economy) overstates the influence of a president -- as opposed to macro-economic and geopolitical forces -- on stock market trends. In fact, one-day losses and gains can sometimes happen despite the policies and efforts of the person in the Oval Office. For example, many commentators attributed the 29 September 2008 points drop -- the second-biggest ever -- to the U.S. House of Representatives' failure to pass a $700 billion bank bailout bill, which President George W. Bush had pushed for.

Even if one simply wanted to examine during which presidencies the Dow suffered largest single-day losses, looking at the largest point drops wouldn't be the way to do it. As the stock market has grown in value over the last century, large point drops have become more common, even if their impact on the overall market value isn't particularly great. To get a clearer picture of the impact of these drops, one would have to measure the drop in percentage terms, rather than points.

Biggest one-day percentage losses

Date One-day percentage loss President
19 October 1987 22.61 percent Ronald Reagan
28 October 1929 12.82 percent Herbert Hoover
29 October 1929 11.73 percent Herbert Hoover
6 November 1929 9.92 percent Herbert Hoover
18 December 1899 8.72 percent William McKinley
12 August 1932 8.4 percent Herbert Hoover
14 March 1907 8.29 percent Theodore Roosevelt
26 October 1987 8.04 percent Ronald Reagan
15 October 2008 7.87 percent George W. Bush
21 July 1933 7.84 percent Franklin D. Roosevelt

(Sources: Wall Street Journal's Market Data and Yahoo! Finance's downloadable Dow Jones data)

Five of these 10 events took place during the era of the Great Depression, and all but one occurred during the tenure of Republican presidents.

However, if one were to insist on linking the occupant of the White House to the performance of the stock market, a better way to do it would be to track the average performance of the Dow Jones over the entire course of a presidency, rather than looking at one-day outliers in isolation.

To illustrate this, we looked at the average performance of the Dow over the course of the last nine presidential terms. We used Yahoo! Finance data for this, which only goes back as far as 29 January 1985, so we're missing figures for the first week or so of Ronald Reagan's second administration.

Average one-day percentage change in Dow Jones Average Industrial Index, Last Nine Terms

Presidency Dates Average One-day Percentage Change
Donald Trump 01/20/2017 - 02/06/2018 + 0.09 percent
Barack Obama (Second) 01/20/2013 - 01/19/2017 + 0.04 percent
Barack Obama (First) 01/20/2009 - 01/19/2013 + 0.06 percent
George W. Bush (Second) 01/20/2005 - 01/19/2009 - 0.01 percent
George W. Bush (First) 01/20/2001 - 01/19/2005 + 0.01 percent
Bill Clinton (Second) 01/20/1997 - 01/19/2001 + 0.05 percent
Bill Clinton (First) 01/20/1993 - 01/19/1997 + 0.08 percent
George H.W. Bush 01/20/1989 - 01/19/1993 + 0.04 percent
Ronald Reagan (Second) 01/29/1985 - 01/19/1989 + 0.06 percent

So while Donald Trump's presidency did see the largest one-day points drop in Dow Jones history, it has also seen the biggest average one-day percentage growth since 1985. However, this is based on only 12 months of data, and the next three years could see that 0.09 percent growth rate drop.

The biggest average daily percentage growth over the course of a four-year presidency was 0.08 percent, during Bill Clinton's first administration between 1993 and 1997.


Market Data Center.  "U.S. Stocks -- Historical Index Data."   Wall Street Journal.  30 December 2011.

Yahoo! Finance.  "Dow Jones Industrial Average -- Historical Data."   Yahoo! Finance.  6 February 2018.

CBS News/Associated Press.  "Stocks Take Record Tumble, Down 777 Points."   CBS News/Associated Press.  29 September 2008.

Twin, Alexandra.  "Stocks Crushed."   CNN Money.  29 September 2008.

Bajaj, Vikas; Grynbaum, Michael M.  "For Stocks, Worst Single-Day Drop in Two Decades."   New York Times.  29 September 2008.

Romans, Christine.  "Remembering the Worst Day in Wall Street History."   CNN Money.  19 October 2017.

Dan Mac Guill is a former writer for Snopes.