Bitcoin finished March 14 near $71,232 on Coinbase after Kharg Island strike

Bitcoin's U.S.-dollar market absorbed a major geopolitical shock on March 14, 2026 without extending the preceding selloff. Coinbase Exchange's BTC-USD daily candle opened at $70,944.32 at 00:00 UTC and closed at $71,232.02 at 00:00 UTC on March 15. That was a $287.70 increase, or 0.41%, calculated as close minus open divided by open.

The result mattered because it followed a March 13 U.S. strike on Kharg Island, a critical Iranian oil-export location near the Strait of Hormuz. U.S. Central Command said its forces hit more than 90 military targets while preserving the island's oil infrastructure. The official record establishes the strike and its stated target scope; it does not independently establish Iran's damage assessment or every market participant's interpretation.

A contained Bitcoin session

The Coinbase BTC-USD candle ranged from $70,236.02 to $71,316.00 on March 14. The $1,079.98 high-to-low span was 1.52% of the opening price. Reported volume was 3,174.08339322 BTC on that venue during the UTC window.

Those figures describe one spot pair on one exchange. Cryptocurrency trades continuously, there is no universal closing auction, and another venue or timezone can produce a different open, close, high, low and volume. Coinbase's documentation also warns that historical candle data can be incomplete when an interval contains no ticks, although that limitation is unlikely to explain a full active BTC-USD daily bucket. The calculation here uses Coinbase's returned candle as recorded, without aggregating other exchanges.

A contemporaneous CoinDesk report published at 2:08 a.m. Eastern on March 14 placed bitcoin near $71,000, down 0.7% over its trailing 24-hour window but up 4.2% over seven days. The apparent difference from Coinbase's positive UTC candle is not a contradiction: a rolling 24-hour comparison and a midnight-to-midnight UTC candle use different start points. CoinDesk also reported that bitcoin had retreated from a March 13 high of $73,838 before stabilizing.

Why the macro link mattered

The strike expanded the range of outcomes investors had to consider. CENTCOM said military sites were hit and oil infrastructure was preserved, while the market report described concern that energy infrastructure could become exposed if the conflict escalated. For bitcoin, that combination created competing forces: uninterrupted crypto trading offered immediate price discovery, while higher energy and inflation risks threatened the rate outlook for risk assets.

The next scheduled Federal Open Market Committee meeting was set for March 17-18, 2026, according to the Federal Reserve's calendar. On March 14, the decision and economic projections were not yet available. It would therefore be anachronistic to use the committee's later statement to explain positioning visible in this session.

What the record supports

The defensible conclusion is narrow. Bitcoin did not break down on Coinbase during the March 14 UTC session: BTC-USD closed 0.41% above its open and only $84.00 below the session high. That supports a description of short-term resilience, not a claim that bitcoin had become a safe haven or detached from oil, interest rates or geopolitical risk.

Nor can the candle establish causation. It cannot show which trades responded to Kharg Island, how derivatives positioning changed across all venues, or whether the response would persist after March 14. The event-day record shows a contained market reaction under acute macro uncertainty; stronger claims require broader cross-venue and positioning data.