---
title: "Weekly Recap | Profusa -21.4%, weekly amplitude 44.49%"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/299514121.md"
description: "Profusa fell 21.4% this week to close at $1.91, while the S&P 500 was essentially flat at -0.08%, leaving the stock trailing the benchmark by roughly 21.32 percentage points. The week opened with a brief spike to $2.67 on Monday, then saw a sharp sell-off on Tuesday with a single-day drop of more than 29%. Selling continued into Wednesday and Thursday, with the low at $1.58, before a modest rebound on Friday brought the close back to $1.91. Weekly amplitude reached 44.49%."
datetime: "2026-09-19T06:41:27.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/299514121.md)
  - [en](https://longbridge.com/en/news/299514121.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/299514121.md)
generator: "portal-rs"
---

# Weekly Recap | Profusa -21.4%, weekly amplitude 44.49%

## The Week

Profusa fell 21.4% this week to close at $1.91, while the S&P 500 was essentially flat at -0.08%, leaving the stock trailing the benchmark by roughly 21.32 percentage points. The week opened with a brief spike to $2.67 on Monday, then saw a sharp sell-off on Tuesday with a single-day drop of more than 29%. Selling continued into Wednesday and Thursday, with the low at $1.58, before a modest rebound on Friday brought the close back to $1.91. Weekly amplitude reached 44.49%. There was no major catalyst during the period, with trading centred on the stock’s regained Nasdaq compliance.

## The Week Ahead

No Profusa-specific earnings or company events are scheduled for next week. On the macro side, the Richmond Fed composite index on Tuesday 22 September, and initial jobless claims plus new home sales on Thursday 24 September, could shape risk appetite and in turn affect trading activity in small-cap names.

*This article is generated by LongbridgeAI from market data, for information only and not investment advice.*

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