---
title: "Bitcoin hovers around $83,000 as AI earnings revive tech, ZEC jumps 11%"
description: "2026-10-21にCoinDeskが報道。検知後24時間でZEC +2.52%。 CoinDesk: “Strong results from SpaceX and Super Micro sent Asian chip stocks surging, and ZEC led crypto higher after developers set a date for its next network upgrade.” 検知後24時間でZECは+2.52%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/zcash-bitcoin-hovers-around-83-000-a795ebebb8a313"
published: 2026-10-21T04:07:57.000Z
updated: 2026-10-22T04:09:02.000Z
indexable: false
---

# Bitcoin hovers around $83,000 as AI earnings revive tech, ZEC jumps 11%

2026-10-21にCoinDeskが報道。検知後24時間でZEC +2.52%。 CoinDesk: “Strong results from SpaceX and Super Micro sent Asian chip stocks surging, and ZEC led crypto higher after developers set a date for its next network upgrade.” 検知後24時間でZECは+2.52%変動。価格観測は因果関係を証明しません。

Attributed sources: [CoinDesk](<https://www.coindesk.com/markets/2026/10/21/bitcoin-hovers-around-usd83-000-as-ai-earnings-revive-tech-zec-jumps-11>)

## Key facts

CoinDesk: “Strong results from SpaceX and Super Micro sent Asian chip stocks surging, and ZEC led crypto higher after developers set a date for its next network upgrade.” 検知後24時間でZECは+2.52%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) (CoinDesk); this describes source coverage, not truth or causation.
検知後の観測リターン：5分: +0.01% (BTC比差 +0.04 pt; 21/10/2026, 04:07 → 21/10/2026, 04:12, UTC; Gate · USDT)；1時間: +0.12% (BTC比差 +0.01 pt; 21/10/2026, 04:07 → 21/10/2026, 05:07, UTC; Gate · USDT)；24時間: +2.52% (BTC比差 +2.44 pt; 21/10/2026, 04:07 → 22/10/2026, 04:07, 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4.07%（OKX · USDT；基準 21/10/2026, 04:07, 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 | +0.01% | -0.02% | +0.04 pt | 21/10/2026, 04:07 → 21/10/2026, 04:12 | Gate · USDT |
| 1時間 | +0.12% | +0.11% | +0.01 pt | 21/10/2026, 04:07 → 21/10/2026, 05:07 | Gate · USDT |
| 24時間 | +2.52% | +0.08% | +2.44 pt | 21/10/2026, 04:07 → 22/10/2026, 04:07 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Ready | true |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.55% |
| 99th percentile of absolute hourly returns | 4.07% |
| BTC beta | 1.91 |
| Source / cutoff (UTC) | OKX · USDT / 21/10/2026, 04:07 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Bitcoin hovers around $83,000 as AI earnings revive tech, ZEC jumps 11%](<https://www.coindesk.com/markets/2026/10/21/bitcoin-hovers-around-usd83-000-as-ai-earnings-revive-tech-zec-jumps-11>) — CoinDesk; published 21/10/2026, 04:07; received 21/10/2026, 04:07 (UTC).


## Recent ZEC events and market reactions

- [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>) — 受信 23/10/2026, 01:48 (UTC) · 原因未確定 · 価格急変動 · 5m -0.50% / 1h -0.50%
- [Full coin archive](<https://whycoinmoves.com/ja/coins/zcash>)

## 他銘柄の直近の価格急変動イベント

- [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>)
- [QTC: QTCはなぜ1分で2.26%下落したのか？根拠・市場データ検証 · 2026-10-21](<https://whycoinmoves.com/ja/events/quantus-move-1792621200>)
- [価格急変動](<https://whycoinmoves.com/ja/topics/market>)

## Research for this archive

- [Monero XMR and Zcash ZEC: delistings, liquidity and USD vs USDT](<https://whycoinmoves.com/ja/research/privacy-coin-delistings-and-quote-currency-isolation.md>)
- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Crypto liquidity and order book depth: a historical data audit](<https://whycoinmoves.com/ja/research/order-book-data-quality.md>)
- [Perpetual funding rates and annualized yield: a 2025 comparison](<https://whycoinmoves.com/ja/research/funding-rates-versus-investor-returns.md>)

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