---
title: "Biggest stock movers Friday: ROST, FLO, and more"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296596892.md"
description: "Stock futures rose slightly on Friday amid cautious sentiment. Ross Stores (ROST) surged 9% on strong Q3 results and raised FY2026 guidance, aided by a tariff refund. Conversely, OSI Systems (OSIS) fell 14% due to missed revenue estimates and lower FY2027 guidance. Aveanna Healthcare (AVAH) dropped 9% following a secondary offering by existing shareholders. Flowers Foods (FLO) declined 5% after missing Q2 revenue and EPS targets, while cutting its full-year outlook."
datetime: "2026-08-21T09:31:43.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296596892.md)
  - [en](https://longbridge.com/en/news/296596892.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296596892.md)
generator: "portal-rs"
---

# Biggest stock movers Friday: ROST, FLO, and more


### Related Stocks

- [AVAH.US](https://longbridge.com/en/quote/AVAH.US.md)
- [OSIS.US](https://longbridge.com/en/quote/OSIS.US.md)
- [ROST.US](https://longbridge.com/en/quote/ROST.US.md)
- [FLO.US](https://longbridge.com/en/quote/FLO.US.md)

## Related News & Research

- [OSI Systems (OSIS) Reports Higher Earnings, Is It Still Below Fair Value?](https://longbridge.com/en/news/297940315.md)
- [UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Raises Holdings in Ross Stores, Inc. $ROST](https://longbridge.com/en/news/297495604.md)
- [Does Aveanna’s Value-Focused Re-Rating Clarify the Long-Term Home-Care Thesis for AVAH?](https://longbridge.com/en/news/298111143.md)
- [Five Below (FIVE) Reports Q2: Everything You Need To Know Ahead Of Earnings](https://longbridge.com/en/news/297588789.md)
- [Equitable Holdings Inc. Buys New Stake in OSI Systems, Inc. $OSIS](https://longbridge.com/en/news/297397349.md)

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