What Presidential Truth Social Posts Actually Do to Markets, Measured
Only the oil posts reprice. Everything else measures as noise — across every post in forty-five days, not selected examples.
- 30 posts measured over forty-five days from a licensed direct ingest.
- Oil-relevant posts averaged an absolute 0.27% WTI move; the largest was 0.46%.
- No post outside the oil category reached 0.2%% on any measured instrument.
Over the past forty-five days, 30 presidential Truth Social posts crossed our tape with a measurable market reaction window attached — a dataset that exists because we ingest the president's posts directly and measure prices from the instant each one prints. The pattern is unambiguous: the only posts that move markets are the ones that touch oil. Posts about the Strait of Hormuz and Iran moved WTI crude as much as 0.46% within fifteen minutes; every other category — courts, tariffs, tech events, endorsements — measured a median peak reaction of 0.03% across any instrument, indistinguishable from noise.
Key points
- 30 measured posts in forty-five days: 11 touched oil instruments, 19 did not.
- Oil-relevant posts averaged an absolute 0.27% WTI move in fifteen minutes; 10 of them reached at least 0.1%.
- No post outside the oil category reached even 0.2% on any measured instrument (median 0.03%).
The five largest measured post reactions
| Post | Content | WTI, 15 min |
|---|---|---|
| 18 Aug, 13:30 | There are no talks or conversations going on, or scheduled, with the Islamic Republic of Iran. | -0.46% |
| 14 Jul, 15:04 | Oil is flowing like never before, thanks to the awesome Power of the United States Military. A | -0.38% |
| 18 Aug, 13:32 | https://truthsocial.com/@realDonaldTrump/posts/117116752164653735 | -0.30% |
| 21 Aug, 17:24 | ‘That’s the Jetsons that’s coming to life’: Trump officials tout multifront drone initiative: h | +0.30% |
| 21 Aug, 17:24 | Drone companies, admin leaders meet for first White House ‘Drone Dominance’ meeting: https://br | +0.30% |
Why only the oil posts reprice
A presidential post moves a market when it carries information about a physical flow the market prices continuously. Statements about the Strait of Hormuz — claims of control, red lines, denials of talks — bear directly on whether roughly a fifth of the world's seaborne oil keeps moving, so the crude market grades each one within minutes. Statements about domestic politics, court fights, or even trade policy with a 2027 effective date carry no near-term flow information, and the measured record shows equity indexes treating them accordingly: today's declaration of 50%% tariffs on Canadian vehicles and steel moved the Canadian dollar 0.03%%, and this morning's post that Iran is “completely collapsing” moved WTI +0.26%% — the oil rule holding on both sides in a single day.
How to read a presidential post like the tape does
The measured record suggests three questions decide whether a post matters to markets within the hour: does it change a physical flow (oil through a strait, gas through a pipeline, power across a border); does it carry a date inside the market's hedging horizon; and does it commit the government to something reversible or irreversible. Posts scoring none of the three have measured as noise in this dataset — every time.
Do Trump's Truth Social posts move the stock market?
Measured across 30 posts over forty-five days: almost never. No post outside the oil-relevant category moved any measured instrument by even 0.2% within fifteen minutes; the median peak reaction was 0.03%.
Which presidential posts have moved markets the most?
Posts touching the Strait of Hormuz and Iran. The largest measured fifteen-minute WTI reaction in the dataset was 0.46%, and oil-relevant posts averaged an absolute 0.27% move.
How is this measured?
MoveSurge ingests the president's Truth Social posts directly under license and captures instrument prices at the instant each post crosses, then one and fifteen minutes later. Every figure on this page is that measurement, computed over the full forty-five-day record rather than selected examples.
How these numbers were measured
Reaction figures are MoveSurge's own measurement from our licensed direct ingest of the president's posts; the pipeline is described on our editorial standards page.
Sources
-
Trump says U.S. will hike Canada auto tariffs to 50% as trade war escalates
— CNBC
The 24 August tariff declaration analyzed here was posted on Truth Social and covered same-day.
-
Iran warns non-compliant ships away from Hormuz — live updates
— The Jerusalem Post
The Hormuz standoff context in which the oil-relevant posts were made.
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