Bitcoin fell 3.2% as Trump announced a Hormuz blockade

Bitcoin fell during April 12, 2026 as unsuccessful U.S.-Iran negotiations and President Donald Trump’s subsequent announcement of a naval blockade around the Strait of Hormuz reversed some of the optimism surrounding an earlier ceasefire.

Coinbase Exchange’s BTC-USD market opened its April 12 UTC candle at $73,085.99 and closed it at $70,755.35. That was a 3.19% decline, calculated as the difference between the close and open divided by the open. The same venue recorded a daily high of $73,172.14 and a low of $70,512.70.

A geopolitical repricing

The market move developed in stages. Contemporaneous reporting said high-level negotiations in Islamabad ended without resolving the conflict. Bitcoin had already retreated from the UTC opening level before Trump announced later on April 12 that a blockade would be imposed, so the entire decline cannot responsibly be assigned to that announcement alone.

Trump’s remarks nevertheless added a new escalation risk. In a direct record of comments delivered at 9:08 p.m. on April 12, he said a blockade would take effect at 10 o’clock on April 13 and that other countries were assisting. The official transcript was released on April 13, making it a near-contemporaneous primary record of the announcement rather than an event-day publication.

The Block reported at 9:31 p.m. Eastern on April 12 that bitcoin was trading at $71,093, down 2.6% over the preceding 24 hours, after reaching roughly $70,600 earlier in the session. Its account connected the broader cryptocurrency decline first to the failed negotiations and then to the blockade announcement. That sequence is consistent with the Coinbase candle, although price alignment alone cannot prove causation.

The weakness extended beyond bitcoin

CoinMarketCap’s April 12 historical snapshot listed bitcoin at $70,753.41, with a 3.15% 24-hour decline. It also showed ether down 4.08% at $2,192.20 and solana down 4.02% at $81.54. Those figures indicate that the move was broader than BTC, while stablecoins in the same snapshot remained close to their intended dollar values.

The snapshot is an aggregated observation, not an official market close. Cryptocurrency trades continuously across exchanges, and daily returns vary with the selected venue, currency pair, observation time and UTC boundary. Coinbase’s candle describes only BTC-USD trading on Coinbase Exchange between 00:00 and 24:00 UTC; it is not a volume-weighted measure of the entire global bitcoin market.

Why the session mattered

April 12 demonstrated cryptocurrency’s role as a continuously traded risk indicator during a weekend, when U.S. cash equities were closed. The decline did not establish that Bitcoin’s network, issuance policy or settlement process had changed. It showed that its market price remained sensitive to macroeconomic expectations, energy-security risk and rapidly changing geopolitical headlines.

It also cautioned against treating bitcoin as an automatic haven during every international crisis. On this date, the observable response resembled a reduction in risk appetite across major cryptoassets. That is an interpretation of the cross-asset price record, not proof of what motivated every buyer or seller.

What remained uncertain

The available April 12 evidence did not quantify how much selling came from spot holders, derivatives liquidations or automated trading. It also could not establish whether the announced blockade would begin as described, how other governments would participate or how long the policy would last. Those operational and political outcomes belonged to later dates and are not projected backward into this reconstruction.