---
title: "Thursday's ETF with Unusual Volume: IDEF"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/278916758.md"
description: "The iShares Defense Industrials Active ETF (IDEF) experienced unusually high trading volume on Thursday, with over 19.2 million shares traded compared to a three-month average of 55,000. IDEF shares fell by 0.7%. Notable components included Palantir Technologies, up 1.6% with 26.9 million shares traded, and Red Cat Holdings, up 0.6% with over 10.6 million shares. Unusual Machines rose by 10%, while GE Aerospace declined by 5.9%."
datetime: "2026-03-12T16:25:39.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/278916758.md)
  - [en](https://longbridge.com/en/news/278916758.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/278916758.md)
---

# Thursday's ETF with Unusual Volume: IDEF

The iShares Defense Industrials Active ETF is seeing unusually high volume in afternoon trading Thursday, with over 19.2 million shares traded versus three month average volume of about 55,000. Shares of IDEF were off about 0.7% on the day.

Components of that ETF with the highest volume on Thursday were Palantir Technologies, trading up about 1.6% with over 26.9 million shares changing hands so far this session, and Red Cat Holdings, up about 0.6% on volume of over 10.6 million shares. Unusual Machines is the component faring the best Thursday, higher by about 10% on the day, while GE Aerospace is lagging other components of the iShares Defense Industrials Active ETF, trading lower by about 5.9%.

**VIDEO: Thursday's ETF with Unusual Volume: IDEF**

The views and opinions expressed herein are the views and opinions of the author and do not necessarily reflect those of Nasdaq, Inc.

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