Bitcoin price on September 12, 2026: BTC closed at $77,263, up 0.07%, in a $445 range between a $77,495 high and a $77,050 low — the fourth-narrowest session of 2026 and, on volume of 1,669 BTC, barely a quarter of the twenty-day average, the quietest aftermath imaginable to Friday’s $3,822 inflation-day round trip, with the Federal Reserve’s decision now four sessions away. The snapshot and charts are first, the short version follows, and the full explanations are at the end for anyone who wants them. Informational only. This brief reports market data and publicly available news. It is not investment, READ MORE