---
title: "Bitcoin volatility nears 2026 lows as traders brace for Fed decision and US midterms"
description: "2026-10-21にThe Blockが報道。検知後24時間でBTC -2.10%。 The Block: “Bitcoin volatility is approaching its 2026 lows, with K33 pointing to weak trading activity ahead of several potential market catalysts.” 検知後24時間でBTCは-2.10%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-volatility-nears-2026-lows-21202271019ee5"
published: 2026-10-21T11:57:09.000Z
updated: 2026-10-22T11:58:01.000Z
indexable: false
---

# Bitcoin volatility nears 2026 lows as traders brace for Fed decision and US midterms

2026-10-21にThe Blockが報道。検知後24時間でBTC -2.10%。 The Block: “Bitcoin volatility is approaching its 2026 lows, with K33 pointing to weak trading activity ahead of several potential market catalysts.” 検知後24時間でBTCは-2.10%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/2026-10-21-bitcoin-volatility-nears-2026-lows-as-traders-brace-for-fed-decision-and-us-midterms-421524>)

## Key facts

The Block: “Bitcoin volatility is approaching its 2026 lows, with K33 pointing to weak trading activity ahead of several potential market catalysts.” 検知後24時間でBTCは-2.10%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: +0.02% (21/10/2026, 11:57 → 21/10/2026, 12:02, UTC; Gate · USDT)；1時間: -0.04% (21/10/2026, 11:57 → 21/10/2026, 12:57, UTC; Gate · USDT)；24時間: -2.10% (21/10/2026, 11:57 → 22/10/2026, 11:57, 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, 11:57, 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 | +0.02% | +0.02% | 0.00 pt | 21/10/2026, 11:57 → 21/10/2026, 12:02 | Gate · USDT |
| 1時間 | -0.04% | -0.04% | 0.00 pt | 21/10/2026, 11:57 → 21/10/2026, 12:57 | Gate · USDT |
| 24時間 | -2.10% | -2.10% | 0.00 pt | 21/10/2026, 11:57 → 22/10/2026, 11:57 | 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, 11:57 |

## Claims and open questions

- No independently verified causal explanation is available.

## Source evidence

- [Bitcoin volatility nears 2026 lows as traders brace for Fed decision and US midterms](<https://www.theblock.co/news/markets/2026-10-21-bitcoin-volatility-nears-2026-lows-as-traders-brace-for-fed-decision-and-us-midterms-421524>) — The Block; published 21/10/2026, 11:55; received 21/10/2026, 11:57 (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.