---
title: "US Tech Trounced, Bonds Bid As A Korean Butterfly Flaps Its Wings..."
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/290603127.md"
description: "Tl;dr: Oil oscillations took a back seat to Korean carnage today as the flapping of levered ETF butterflies triggered a tornado in US big-tech (led by Semis), dragging down Nasdaq (Dow green though). Heavy negative delta 0-DTE flow today. Bonds (mixed macro) and the dollar were bid as Bitcoin and bullion were dumped again.The question on everyone's lips: Are levered Korean retail traders the US Tech boom Giant killer?Oil"
datetime: "2026-06-23T20:00:39.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/290603127.md)
  - [en](https://longbridge.com/en/news/290603127.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/290603127.md)
generator: "portal-rs"
---

# US Tech Trounced, Bonds Bid As A Korean Butterfly Flaps Its Wings...

***Tl;dr:** Oil oscillations took a back seat to Korean carnage today as the **flapping of levered ETF butterflies triggered a tornado in US big-tech (led by Semis),** dragging down Nasdaq (Dow green though). **Heavy negative delta 0-DTE flow** today. Bonds (mixed macro) and the dollar were bid as **Bitcoin and bullion were dumped again.***

The question on everyone's lips: ***Are levered Korean retail traders the US Tech boom Giant killer?***

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**