---
title: "Pre-market hot trades in US stocks: TanTech pre-market down 17.95%; Visionary pre-market down 16.56%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/281741765.md"
description: "TanTech pre-market fell 17.95%; Visionary pre-market fell 16.56%; Profusa pre-market rose 105.98%; iRobot pre-market rose 97.70%; Zspace pre-market rose 29.51%"
datetime: "2026-04-06T08:17:16.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/281741765.md)
  - [en](https://longbridge.com/en/news/281741765.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/281741765.md)
---

# Pre-market hot trades in US stocks: TanTech pre-market down 17.95%; Visionary pre-market down 16.56%

**Pre-market Hot Trades in US Stocks**

TanTech, down 17.95% in pre-market, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation.

Visionary, down 16.56% in pre-market, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation.

**Top Gainers in Pre-market US Stocks**

Profusa, up 105.98% in pre-market, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation.

iRobot, up 97.70% in pre-market, with no significant news recently. Trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation.

Zspace, up 29.51% in pre-market. Zspace, up 29.51% in pre-market. No significant news recently; trading is active, and capital flow is evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. no\_news

### Related Stocks

- [TANH.US](https://longbridge.com/en/quote/TANH.US.md)
- [GV.US](https://longbridge.com/en/quote/GV.US.md)

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