---
title: "Top 10 US Stock Losers (5.15)"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/286620194.md"
description: "POET Tech(POET) fell 22.36%, with a trading turnover 1.8 Billion USD, and a year-to-date rose 152.3%. Rackspace Tech(RXT) fell 20.16%, with a trading turnover 232.6 Million USD, and a year-to-date rose 499.4%. Whitefiber(WYFI) fell 19.31%, with a trading turnover 83.7 Million USD, and a year-to-date rose 53.2%."
datetime: "2026-05-15T22:00:51.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/286620194.md)
  - [en](https://longbridge.com/en/news/286620194.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/286620194.md)
---

# Top 10 US Stock Losers (5.15)

NASDAQ Composite Index has fell 1.54%, with a year-to-date rose 12.8%; S&P 500 has fell 1.24%, with a year-to-date rose 8.2%; Dow Jones Industrial Average has fell 1.07%, with a year-to-date rose 3%.

POET Tech(POET) fell 22.36%, with a trading turnover 1.8 Billion USD, and a year-to-date rose 152.3%.

Rackspace Tech(RXT) fell 20.16%, with a trading turnover 232.6 Million USD, and a year-to-date rose 499.4%.

Whitefiber(WYFI) fell 19.31%, with a trading turnover 83.7 Million USD, and a year-to-date rose 53.2%.

### Related Stocks

- [POET.US](https://longbridge.com/en/quote/POET.US.md)
- [RXT.US](https://longbridge.com/en/quote/RXT.US.md)
- [WYFI.US](https://longbridge.com/en/quote/WYFI.US.md)
- [TNGX.US](https://longbridge.com/en/quote/TNGX.US.md)
- [YSS.US](https://longbridge.com/en/quote/YSS.US.md)
- [BTBT.US](https://longbridge.com/en/quote/BTBT.US.md)
- [DLO.US](https://longbridge.com/en/quote/DLO.US.md)
- [USAS.US](https://longbridge.com/en/quote/USAS.US.md)
- [HTFL.US](https://longbridge.com/en/quote/HTFL.US.md)
- [FRMI.US](https://longbridge.com/en/quote/FRMI.US.md)

## Related News & Research

- [Why Poet Technologies stock skyrocketed this week](https://longbridge.com/en/news/286681063.md)
- [POET Stock Jumped on $500 Million Deal With Lumilens. Its Financials Have a Long Way to Go.](https://longbridge.com/en/news/286600014.md)
- [POET Technologies GAAP EPS of -$0.08 misses by $0.03, revenue of $0.5M beats by $0.25M](https://longbridge.com/en/news/286510324.md)
- [The Texas-size fight over Rick Perry’s nuclear power startup](https://longbridge.com/en/news/286641646.md)
- [Poet Technologies sank today -- is the stock a buy right now?](https://longbridge.com/en/news/286625118.md)