Every Time the President Moved Markets with Social Media.

Intel did not last into market open. This post was really cut down due to rules, but the meat of it is still there.

Tl;dr: you should probably, sadly, be watching what this dude is saying. 18 instances using social media alone.

3/23/2018 SPY: -2.10%

Early that morning, The President refused to sign the $1.5 trillion Omnibus Spending Bill.In the wake of the tariff spat that he had also triggered the day before with China, markets remained down for the duration of the day, until, rather unexpectedly, he signed the bill that SAME day, Markets bounced slightly before close on the good news and boomed the following Monday (3/23 was a Friday) after news came out that China and the U.S. were going into negotiations.

4/2/2018 SPY: -2.23%

Before the market opened, The President made a post criticizing Amazon for taking advantage of the USPS. Amazon closed -5.2% for the day, markets were down substantially as well, thanks in part to China issuing more tariffs.

12/4/2018 SPY: -3.24%

A slightlytricky day, not much was going on aside from 3Y and 5Y yield curve inversion, it didn’t help that he suggested that a “real” deal with China was still uncertain.

12/21/2018 SPY: -2.06%

Two days after a rate hike (which greatly displeased him), the President made matters worse by actively threatening to keep the government shut down. Government shutdowns are typically very unwelcome to markets.

12/24/2018 SPY: -2.71%

On Christmas Day, the worst on record, The President took his first shot at removing Jerome Powell. Markets immediately dipped after his post: “The only problem our economy has is the Fed……” Reports that same day began circulating that he had been looking into removing Powell from office.

5/13/2019 SPY: -2.41%

Another post about failed negotiations with China and things only bounced later in the day after the President remained hesitant about slapping an additional $325 billion in tariffs.

8/23/2019 SPY: -2.59%

This post ordered US companies to look to alternatives to China. Not that the President has the powers to enforce such a thing, but hope was now diminishing that a trade deal would ever be made, and markets were spooked.

4/2/2020 SPY: +4.22%

With oil near record lows, a simple post suggesting a deal with Russia and Saudi Arabia was made. WTI Crude Oil spiked 26% off of the post alone. Markets also boomed.

4/22/2020 SPY: +2.29%

Another simple post that led to a peak spike of 32% and a close of 19% for WTI Crude. All he did was suggest the aggressive use of the Navy. The general market also climbed, though it's harder to say the post was entirely responsible for that.

3/2/2025

Can't use the word on this sub but those tech projects went up a lot.

4/9/2025 SPY: +9.52%

All he had to do here was announce a 90 day pause in tariffs to send markets flying.

4/21/2025 SPY: -2.36%

The President took another stab at an attempt to remove Powell from office “reigniting” worries of an over-reach of power and an active attempt to meddle with the independent bank.

5/21/2025

Freddie Mac and Fannie Mae stocks both exploded well over 30% in value after it was suggested the two companies could go public.

5/23/2025 SPY: -0.67%

A 50% tariff on the EU was threated that day.

Shares of U.S. Steel, however, exploded that day, thanks to explicit approval of Nippon Steel’s takeover of said company: 

Apple also fell -3% that day, after heexplicitly threatened a 25% tariff on iPhones not built in the United States. 

10/10/2025 SPY: -2.71%

A struggle over China's monopoly on rare earth minerals reignited the trade war and sent shares of MP Materials, USA Rare Earth, and NioCorp saw significant movement that day as well.

4/8/2026 SPY: +2.51%

After threatening continued conflict, markets roared back the following day when a ceasefire was unexpectedly declared.

Here are all the sources since Reddit really does not like posting either of them: https://pastebin.com/WWUvfCmk