---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/39737649.md"
description: "$Berkshire Hathaway B(BRK.B.US) Historical data backtesting of the major trend on the monthly chart shows that it must at least break below the EMA21 by a certain distance and sustain for more than two months. Pay attention to the position of that pin bar in August 2025 (455).This is still a conservative pullback. If it's an extreme bear market crash scenario (e.g., 2008/2020), it would need to go further down to touch the monthly EMA55/100 (black swan, relatively low probability).The more likely scenario, based on historical data, is to break below the monthly EMA21 again, consolidate for a while, and then rebound and reverse (a second retest for confirmation).On the daily chart, order flow shows strong support levels between 456 and 466, with a large buy wall between 459 and 463."
datetime: "2026-04-07T04:24:33.000Z"
locales:
  - [en](https://longbridge.com/en/topics/39737649.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/39737649.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/39737649.md)
author: "[McG麥格雷戈](https://longbridge.com/en/profiles/19486155.md)"
---

# $Berkshire Hathaway B(BRK.B.US) Historical data ba…


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## Comments (2)

- **FreeBird2025 · 2026-04-07T11:17:06.000Z**: So, is there still a high probability of a major pullback?