---
title: "Bitcoin slides below $81,500 as tech stock sell-off spreads to Asian equities"
description: "2026-10-23にThe Blockが報道。検知後1時間でBTC +0.22%。 The Block: “The Wall Street sell-off extended to Asian equities on Friday morning, with South Korea's Kospi down 2.3% and Japan's Nikkei 225 down 1.6%.” 検知後1時間でBTCは+0.22%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-slides-below-81-500-38219e10defa88"
published: 2026-10-23T02:22:45.000Z
updated: 2026-10-23T03:23:02.000Z
indexable: false
---

# Bitcoin slides below $81,500 as tech stock sell-off spreads to Asian equities

2026-10-23にThe Blockが報道。検知後1時間でBTC +0.22%。 The Block: “The Wall Street sell-off extended to Asian equities on Friday morning, with South Korea's Kospi down 2.3% and Japan's Nikkei 225 down 1.6%.” 検知後1時間でBTCは+0.22%変動。価格観測は因果関係を証明しません。

Attributed sources: [The Block](<https://www.theblock.co/news/markets/2026-10-22-bitcoin-slides-tech-stock-sell-off-423990>)

## Key facts

The Block: “The Wall Street sell-off extended to Asian equities on Friday morning, with South Korea's Kospi down 2.3% and Japan's Nikkei 225 down 1.6%.” 検知後1時間でBTCは+0.22%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) (The Block); this describes source coverage, not truth or causation.
検知後の観測リターン：5分: +0.04% (23/10/2026, 02:22 → 23/10/2026, 02:27, UTC; Gate · USDT)；1時間: +0.22% (23/10/2026, 02:22 → 23/10/2026, 03:22, 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 23/10/2026, 02:22, 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 | +0.04% | +0.04% | 0.00 pt | 23/10/2026, 02:22 → 23/10/2026, 02:27 | Gate · USDT |
| 1時間 | +0.22% | +0.22% | 0.00 pt | 23/10/2026, 02:22 → 23/10/2026, 03:22 | Gate · USDT |
| 24時間 | — | — | — | — | — |

## 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 / 23/10/2026, 02:22 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Bitcoin slides below $81,500 as tech stock sell-off spreads to Asian equities](<https://www.theblock.co/news/markets/2026-10-22-bitcoin-slides-tech-stock-sell-off-423990>) — The Block; published 23/10/2026, 02:21; received 23/10/2026, 02:22 (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>)

## 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.