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Why Are Perma-Fix (PESI) Shares Soaring Today

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What Happened?

Shares of environmental waste treatment and services provider Perma-Fix (NASDAQ:PESI) jumped 7.4% in the afternoon session after it responded to positive developments in the nuclear energy sector, highlighted by a new government initiative to support advanced reactor technology. The Department of Energy announced it selected the Tennessee Valley Authority and Holtec International to support the deployment of small modular reactors (SMRs). This initiative aimed to advance the development of new nuclear energy technologies to provide clean, reliable power. While Perma-Fix was not directly part of the announcement, the news likely created positive sentiment for the broader nuclear industry, benefiting companies involved in nuclear services and waste management. Separately, Perma-Fix's President and CEO, Mark Duff, was a confirmed speaker at an upcoming Nuclear & Waste Management Forum.

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What Is The Market Telling Us

Perma-Fix’s shares are extremely volatile and have had 31 moves greater than 5% over the last year. In that context, today’s move indicates the market considers this news meaningful but not something that would fundamentally change its perception of the business.

The previous big move we wrote about was 13 days ago when the stock dropped 6.3% on the news that markets faded the Nvidia rally in the morning session, as investors remained uncertain about future rate cuts. 

While the trading day began with significant enthusiasm, pushing the Dow Jones Industrial Average up more than 700 points and the Nasdaq Composite up 2.6%, momentum quickly evaporated as the session wore on. The primary catalyst for this sharp reversal was a stronger-than-expected jobs report, which reduced the implied odds of a December interest rate cut to less than 40%. This macroeconomic anxiety overshadowed stellar corporate performance. Nvidia initially surged 5% on blockbuster earnings and CEO Jensen Huang's bullish outlook on "off the charts" demand for Blackwell chips. However, the stock eventually turned negative, acting as a heavy weight that dragged the broader indices into the red. The sell-off partly reflects a deepening caution regarding high-flying tech valuations in a "higher-for-longer" rate environment. 

Consequently, investors appeared to rotate capital away from volatile growth sectors and toward defensive staples, evidenced by Walmart's 6% gain following its own earnings beat. Ultimately, the market could not sustain the morning's euphoria, as traders prioritized rate realities over AI potential.

Perma-Fix is up 24.2% since the beginning of the year, but at $13.36 per share, it is still trading 13.3% below its 52-week high of $15.41 from November 2025. Investors who bought $1,000 worth of Perma-Fix’s shares 5 years ago would now be looking at an investment worth $2,090.

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