# Bitcoin Closed the Week at $81,159, Its First Weekly Close Above the 50-Week Average in 45 Weeks

Galaxy Research's Alex Thorn notes the same signal coincided with the market low in four of five completed bear markets, while dated futures volume sits about 97 percent below its 2021 level.

- Published: 2026-09-21T05:47:19.973Z
- Canonical: https://polylog.news/crypto/2026-09-21/bitcoin-closed-the-week-at-81-159-its-first-weekly-close-abo
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CoinDesk](https://www.coindesk.com/markets/2026/09/21/bitcoin-s-price-has-cleared-a-key-hurdle-that-has-historically-preceded-major-bull-runs), [CoinDesk (Asian session)](https://www.coindesk.com/markets/2026/09/21/bitcoin-rises-above-usd81-000-while-near-jumps-23-on-zcash-swap-traffic), [CryptoSlate](https://cryptoslate.com/goodbye-futures-bitcoin-found-better-ways-to-trade/)

Bitcoin finished the week ended 20 September at $81,159 on Coinbase, above its 50-week moving average of $78,788 for the first time in 45 weeks. Alex Thorn, head of firmwide research at Galaxy Research, observed that in four of five complet…

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