---
title: "Bitcoin Dips Below $80,000 Ahead of Fed Decision, Midterms"
description: "2026-10-26にDecrypt, Bitcoin Magazineが報道。検知後1時間でBTC -0.72%。 Decrypt: “Analysts point to a sell-off in AI stocks and ETF outflows, with HashKey's Tim Sun flagging $75,000 as the next key support level.” 検知後1時間でBTCは-0.72%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-dips-below-80-000-1fd72aeceddfb3"
published: 2026-10-26T13:05:01.000Z
updated: 2026-10-26T17:53:01.000Z
indexable: false
---

# Bitcoin Dips Below $80,000 Ahead of Fed Decision, Midterms

2026-10-26にDecrypt, Bitcoin Magazineが報道。検知後1時間でBTC -0.72%。 Decrypt: “Analysts point to a sell-off in AI stocks and ETF outflows, with HashKey's Tim Sun flagging $75,000 as the next key support level.” 検知後1時間でBTCは-0.72%変動。価格観測は因果関係を証明しません。

Attributed sources: [Decrypt](<https://decrypt.co/381802/bitcoin-dips-below-80000-ahead-of-fed-decision-midterms>), [Bitcoin Magazine](<https://bitcoinmagazine.com/markets/bitcoin-price-hovers-around-80000>)

## Key facts

Decrypt: “Analysts point to a sell-off in AI stocks and ETF outflows, with HashKey's Tim Sun flagging $75,000 as the next key support level.” 検知後1時間でBTCは-0.72%変動。価格観測は因果関係を証明しません。
Evidence strength: 複数メディア報道, 2 publisher group(s) (Decrypt, Bitcoin Magazine).
検知後の観測リターン：5分: -0.07% (26/10/2026, 13:05 → 26/10/2026, 13:10, UTC; Gate · USDT)；1時間: -0.72% (26/10/2026, 13:05 → 26/10/2026, 14:05, UTC; Gate · USDT)。
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1.01%（OKX · USDT；基準 26/10/2026, 13:05, UTC）です。

## Returns after site detection

| Window | Return | BTC | Difference from BTC | Actual sampled interval (UTC) | Source |
| --- | --- | --- | --- | --- | --- |
| 5分 | -0.07% | -0.07% | 0.00 pt | 26/10/2026, 13:05 → 26/10/2026, 13:10 | Gate · USDT |
| 1時間 | -0.72% | -0.72% | 0.00 pt | 26/10/2026, 13:05 → 26/10/2026, 14:05 | Gate · USDT |

## Historical hourly baseline

| Metric | Value |
| --- | --- |
| Coverage | 100.0% (720/720) |
| Median absolute hourly return | 0.14% |
| 99th percentile of absolute hourly returns | 1.01% |
| BTC beta | 1.00 |
| Source / cutoff (UTC) | OKX · USDT / 26/10/2026, 13:05 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Bitcoin Dips Below $80,000 Ahead of Fed Decision, Midterms](<https://decrypt.co/381802/bitcoin-dips-below-80000-ahead-of-fed-decision-midterms>) — Decrypt; published 26/10/2026, 13:02; received 26/10/2026, 13:05 (UTC).
- [Bitcoin Price Hovers Near $80,000 as Traders Await Fed Decision](<https://bitcoinmagazine.com/markets/bitcoin-price-hovers-around-80000>) — Bitcoin Magazine; published 26/10/2026, 17:43; received 26/10/2026, 17:47 (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

- [HYPE: HYPEはなぜ10月26日に1分で1.17%上昇したのか？](<https://whycoinmoves.com/ja/events/hyperliquid-move-1793036100>)
- [QTC: QTCはなぜ10月26日に5分で12.87%下落したのか？](<https://whycoinmoves.com/ja/events/quantus-move-1793033580>)
- [QTC: QTCはなぜ10月26日に1分で6.52%下落したのか？](<https://whycoinmoves.com/ja/events/quantus-move-1793027700>)
- [価格急変動](<https://whycoinmoves.com/ja/topics/market>)

## 関連リサーチ

- [Altcoin beta to Bitcoin: BTC, ETH, SOL and DOGE hourly returns](<https://whycoinmoves.com/ja/research/hourly-returns-and-bitcoin-beta.md>)
- [Will Bitcoin go back up? Every crash since 2011 and its recovery time](<https://whycoinmoves.com/ja/research/bitcoin-crash-recovery-time.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>)

根拠レベルは情報源のカバー範囲を示し、報道が真である確率ではありません。価格変動とそのタイミングだけでは原因を証明できません。分足サンプルは観測区間を示し、アラート閾値は経験的な基準です。解説はモデル支援で作成し、引用と数値を確認しています。情報源タイトルは原語のまま表示し、記事全文は転載しません。 [Methods and limitations](<https://whycoinmoves.com/ja/methodology>)