Bitcoin has swung between 5% and 12% on at least five separate occasions since 2019 following statements from President Donald Trump, a pattern that has prompted lawmakers and academics to question whether the line between policy announcements and market manipulation has effectively disappeared.
A University of Oxford Faculty of Law study recently documented sharp global market reactions to rapid U.S. tariff policy changes, noting that the scale and timing of those moves created what the author called “fantastic trading opportunities” for anyone with advance knowledge. The pattern has earned a nickname among critics: the Trump Again Chickens Out dynamic, or TACO, referencing the president’s tendency to announce aggressive policies only to partially walk them back days later.
Senator Adam Schiff called for an investigation after Trump posted “THIS IS A GREAT TIME TO BUY!!” on Truth Social in April 2025, shortly before announcing a tariff adjustment that sent markets higher. Democratic Congressman Stephen Lynch separately raised concerns about trading activity tied to major announcements, saying it “raised serious concerns about insider trading and market manipulation by government officials in possession of sensitive national security information.”
No evidence has emerged that the president or his administration violated securities laws. But the pattern of well-timed trades, combined with the administration’s direct influence over tariffs, geopolitics, and energy policy, has fueled a debate that extends well beyond crypto into oil futures, prediction markets, and traditional equities.
Five Statements That Moved the Market
The first entry in what has become an informal catalog of Trump-triggered price swings dates to July 11, 2019. Trump posted on Twitter that he was “not a fan of Bitcoin and other Cryptocurrencies, which are not money… and based on thin air.” Bitcoin dropped 7.1% within 45 minutes of the thread going live. At the time, the asset was still trading below $13,000, and the crypto industry had limited institutional infrastructure to absorb sudden sentiment shocks.
Six years later, the dynamics are different but the sensitivity remains. On March 3, 2025, Trump confirmed via Truth Social that his “Strategic National Crypto Reserve” would include a multi-asset basket of cryptocurrencies anchored by Bitcoin. The announcement followed a year of pro-crypto campaigning, and the market responded immediately: Bitcoin surged 8.2% in under 24 hours, jumping from $84,000 to over $91,000.
That rally proved short-lived. On October 10, 2025, Trump announced 100% tariffs on all Chinese imports to counter Beijing’s rare-earth export controls. Bitcoin plummeted 12.4% in roughly two hours. The move illustrated how quickly a macro-political shock can cascade through crypto, especially when traders are positioned for continued upside.
The source article references additional incidents without providing exhaustive detail on the fourth and fifth entries, but the broader point stands: Bitcoin has become a real-time barometer of presidential communication. For traders monitoring our Fear & Greed Index, the implications are clear. Sentiment readings can flip from greed to fear within a single news cycle when the White House is the source.
When Bitcoin fell below $69,200 on Trump’s Iran ultimatum in March, the move caught many leveraged traders off guard. Our derivatives dashboard showed elevated liquidations within hours of the announcement. The Strait of Hormuz headlines circulating this week suggest another such episode could be imminent.
Why Crypto Markets Are Uniquely Vulnerable
Traditional equity markets have circuit breakers, trading halts, and a regulatory framework designed to prevent manipulation. Crypto has none of those guardrails in any meaningful sense. A presidential social media post at 2 a.m. Can move Bitcoin before most institutional traders have woken up, and by the time Asian markets open, the move is already baked in.
The 24/7 nature of crypto trading compounds the problem. When Trump posted his “great time to buy” message, it went live during hours when U.S. equity markets were closed. Crypto was the only liquid venue for traders to express a view on the incoming tariff adjustment. That asymmetry, critics argue, creates an environment ripe for front-running.
CBC’s Front Burner podcast highlighted another dimension in a March episode: unusually profitable trades in oil futures placed minutes before military announcements related to the Iran conflict. The same pattern has appeared in crypto, according to analysts tracking on-chain flows. Large wallets have moved significant sums in the hours preceding several major policy shifts, though correlation is not causation and no regulator has filed charges.
The Oxford study’s author noted that the TACO dynamic creates a predictable rhythm: announce aggressive policy, watch markets tank, walk it back partially, watch markets recover. Anyone who can anticipate that rhythm, even without explicit inside information, has a structural edge. The question is whether that edge crosses legal lines.
What Comes Next for Bitcoin Traders
Conflicting reports on the reopening of the Strait of Hormuz have circulated throughout the weekend, and markets remain on edge. If Trump confirms a diplomatic breakthrough, the market cap could surge. If he escalates, the opposite. Either way, traders are bracing for volatility.
Michael Saylor’s Strategy, which holds over 815,000 BTC, has largely shrugged off these swings. As we noted when covering why Saylor’s Bitcoin buys no longer move markets, the company’s purchases have become so predictable that they no longer generate the same momentum. Trump’s statements, by contrast, retain their power precisely because they are unpredictable.
Institutional flows tell a mixed story. Bitcoin ETFs snapped a six-week drought last week with $1.2 billion in inflows, suggesting that some large allocators are willing to look past the noise. But those same allocators are likely hedging their exposure, aware that a single Truth Social post could wipe out a week’s gains.
The debate over whether Trump’s statements constitute manipulation will likely drag on without resolution. Securities laws were not written with social media in mind, and crypto occupies a regulatory gray zone even under normal circumstances. What is clear is that the market has priced in a new variable: presidential communication as a first-order driver of price.
For retail traders, the calculus is uncomfortable. You can study on-chain data, track ETF flows, and monitor derivatives open interest, but none of that protects you from a 3 a.m. Post announcing a policy reversal. The TACO dynamic rewards agility and punishes conviction. Whether that is a feature of modern markets or a sign of their dysfunction depends on where you sit.
The Strait of Hormuz headlines could resolve quietly, in which case this week will be a footnote. Or they could trigger another entry in the growing catalog of Trump-induced swings. Either way, the pattern is established. Bitcoin moves when the president speaks, and the president speaks often.
Related Reading
- How crypto ETF flows work (and what they signal)
- Markets news
- More on Bitcoin
- More on Donald Trump
- More on Market Manipulation
Sources
Note: nothing written here is a trade signal. Price movement discussed above is history, not a forecast. Verify anything you plan to act on.
