---
title: "Weekly Recap | Profusa +474.37%, reverse split sparks wild swings"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296669988.md"
description: "PFSA delivered a week of extreme swings, ending with a staggering 474.37% gain at $5.46. That trounced the S&P 500, which slipped 1.43%, by roughly 475.8 percentage points. The price action was a classic blow-off top. Monday (17 August) opened at $4.08 and closed at $4.53. The real drama unfolded on Tuesday (18 August), when the stock rocketed to an intraday high of $28.32 before settling at $27.48. Wednesday (19 August) saw a sharp pullback to $13."
datetime: "2026-08-22T05:30:58.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296669988.md)
  - [en](https://longbridge.com/en/news/296669988.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296669988.md)
generator: "portal-rs"
---

# Weekly Recap | Profusa +474.37%, reverse split sparks wild swings

## The Week

PFSA delivered a week of extreme swings, ending with a staggering 474.37% gain at $5.46. That trounced the S&P 500, which slipped 1.43%, by roughly 475.8 percentage points. The price action was a classic blow-off top. Monday (17 August) opened at $4.08 and closed at $4.53. The real drama unfolded on Tuesday (18 August), when the stock rocketed to an intraday high of $28.32 before settling at $27.48. Wednesday (19 August) saw a sharp pullback to $13.57, and the slide continued through Thursday (20 August) and Friday (21 August), with closes of $7.57 and $5.46 respectively. Weekly amplitude topped 602%, and average daily volume was over 37 times the median, signalling extraordinary turnover.

## Key Events

The week’s surge was tied to a corporate action. The company executed a 1-for-4 reverse stock split, and the adjustment lit a fire under the stock, sending it up more than 400% during Tuesday’s session. The rally fizzled fast once fundamentals came into view. The company reported its fiscal Q2 2026 results, showing a net loss that more than doubled year-on-year to $8.76 million. Alongside the earnings, PFSA announced progress on an option agreement with G3 Vision Labs, a commercial-stage diagnostics company, and disclosed related restructuring and financing plans. The widening loss and lingering uncertainty around the deal’s funding stoked worry, and the stock gave back nearly all of Tuesday’s gains in a three-day retreat.

## The Week Ahead

After this week’s wild ride, the spotlight shifts back to the company’s restructuring story and financial health. On the macro front, a slate of US housing data is due next week, including the FHFA House Price Index and the Case-Shiller 20-City Index, along with the Richmond Fed Composite Index and consumer confidence figures. While these releases will colour the broader tape, the key for PFSA is any fresh detail on the financing package and the G3 Vision Labs transaction. Clarity on the deal’s consummation is the next catalyst to watch.

## In Short

PFSA’s week was a tug-of-war between speculative momentum and weak fundamentals. The reverse split sparked a parabolic run, but the Q2 loss and the company’s precarious balance sheet—negative book value and deep net losses—quickly reasserted themselves. The latest session’s flow data showed negligible large-lot participation, with retail money split between buyers and sellers. There’s no consensus at these levels. The stock’s path from here hinges entirely on whether the company can deliver a concrete plan to fix its capital structure and close the G3 Vision Labs deal.

*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.**