---
title: "Bitcoin Hits Weekly High as Crypto Market Rebounds"
description: "2026-10-21にDecryptが報道。検知後24時間でBTC -3.87%。 Decrypt: “Bitcoin is back near $84,500 as XRP and Zcash lead a broad crypto rebound from October's slide, putting \"Uptober\" back on the table.” 検知後24時間でBTCは-3.87%変動。価格観測は因果関係を証明しません。"
language: ja
canonical: "https://whycoinmoves.com/ja/events/bitcoin-bitcoin-hits-weekly-high-crypto-5de6dc39537938"
published: 2026-10-21T17:33:57.000Z
updated: 2026-10-22T17:33:58.000Z
indexable: false
---

# Bitcoin Hits Weekly High as Crypto Market Rebounds

2026-10-21にDecryptが報道。検知後24時間でBTC -3.87%。 Decrypt: “Bitcoin is back near $84,500 as XRP and Zcash lead a broad crypto rebound from October's slide, putting "Uptober" back on the table.” 検知後24時間でBTCは-3.87%変動。価格観測は因果関係を証明しません。

Attributed sources: [Decrypt](<https://decrypt.co/381555/bitcoin-price-weekly-high-crypto-rebounds>)

## Key facts

Decrypt: “Bitcoin is back near $84,500 as XRP and Zcash lead a broad crypto rebound from October's slide, putting "Uptober" back on the table.” 検知後24時間でBTCは-3.87%変動。価格観測は因果関係を証明しません。
Evidence strength: 単一情報源, 1 publisher group(s) (Decrypt); this describes source coverage, not truth or causation.
検知後の観測リターン：5分: +0.11% (21/10/2026, 17:33 → 21/10/2026, 17:38, UTC; Gate · USDT)；1時間: +0.15% (21/10/2026, 17:33 → 21/10/2026, 18:33, UTC; Gate · USDT)；24時間: -3.87% (21/10/2026, 17:33 → 22/10/2026, 17:33, UTC; Gate · USDT)。記載のない時間枠は未取得です。
直近30日間の時間足絶対リターンの99パーセンタイルは1.23%（OKX · USDT；基準 21/10/2026, 17:33, UTC）です。時間足基準は分単位の変動と直接比較できません。

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source |
| --- | --- | --- | --- | --- | --- |
| 5分 | +0.11% | +0.11% | 0.00 pt | 21/10/2026, 17:33 → 21/10/2026, 17:38 | Gate · USDT |
| 1時間 | +0.15% | +0.15% | 0.00 pt | 21/10/2026, 17:33 → 21/10/2026, 18:33 | Gate · USDT |
| 24時間 | -3.87% | -3.87% | 0.00 pt | 21/10/2026, 17:33 → 22/10/2026, 17:33 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Ready | true |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.15% |
| 99th percentile of absolute hourly returns | 1.23% |
| BTC beta | 1.00 |
| Source / cutoff (UTC) | OKX · USDT / 21/10/2026, 17:33 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Bitcoin Hits Weekly High as Crypto Market Rebounds](<https://decrypt.co/381555/bitcoin-price-weekly-high-crypto-rebounds>) — Decrypt; published 21/10/2026, 17:31; received 21/10/2026, 17:33 (UTC).


## Recent BTC events and market reactions

公開基準を満たした他のBTCイベントはまだありません。

- [Full coin archive](<https://whycoinmoves.com/ja/coins/bitcoin>)

## 他銘柄の直近の価格急変動イベント

- [ZEC: ZECはなぜ1分で0.74%下落したのか？根拠・市場データ検証 · 2026-10-23](<https://whycoinmoves.com/ja/events/zcash-move-1792720080>)
- [SHIB: SHIBはなぜ1分で0.74%上昇したのか？根拠・市場データ検証 · 2026-10-23](<https://whycoinmoves.com/ja/events/shiba-inu-move-1792719780>)
- [ADA: ADAはなぜ5分で1.60%下落したのか？根拠・市場データ検証 · 2026-10-22](<https://whycoinmoves.com/ja/events/cardano-move-1792687800>)
- [価格急変動](<https://whycoinmoves.com/ja/topics/market>)

## Research for this archive

- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Perpetual funding rates and annualized yield: a 2025 comparison](<https://whycoinmoves.com/ja/research/funding-rates-versus-investor-returns.md>)
- [Bitcoin halving and bull markets: evidence from four halvings](<https://whycoinmoves.com/ja/research/bitcoin-halving-and-market-cycles.md>)
- [Bittensor (TAO): Bitcoin beta, volatility and the AI crypto narrative](<https://whycoinmoves.com/ja/research/tao-bitcoin-risk-and-ai-narrative.md>)

[Methods and limitations](<https://whycoinmoves.com/ja/methodology>)
Publisher count is not independent evidence count. Price changes cannot verify news or prove causation.