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NASDAQ:PLRZ 2 December 2025 - 8 December 2025

Polyrizon (PLRZ) Stock Explodes on Naloxone Hydrogel Breakthrough and PL‑14 Upscaling – What Investors Should Know Now

Polyrizon (PLRZ) Stock Explodes on Naloxone Hydrogel Breakthrough and PL‑14 Upscaling – What Investors Should Know Now

Polyrizon shares surged over 100% to the mid-teens on December 4, 2025, with volume topping 26 million after announcing a manufacturing milestone for its PL‑14 Allergy Blocker and promising preclinical data for its naloxone hydrogel. The stock saw heavy volatility and mixed analyst signals, with “Strong Sell” ratings alongside momentum-driven “Buy” calls. The Israel-based biotech has no approved products.
4 December 2025
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Polyrizon (PLRZ) Stock Doubles on Naloxone Hydrogel Breakthrough and PL‑14 Manufacturing Milestone – What Investors Need to Know on December 4, 2025

Polyrizon (PLRZ) Stock Doubles on Naloxone Hydrogel Breakthrough and PL‑14 Manufacturing Milestone – What Investors Need to Know on December 4, 2025

Polyrizon Ltd. shares surged to $13–15 by early afternoon December 4, more than doubling from the previous close of $7.09, after hitting intraday highs above $18. The rally followed news of a manufacturing milestone for its PL‑14 allergy nasal spray and new preclinical data showing improved mucoadhesion for its naloxone hydrogel. Polyrizon, based in Israel, has no approved products and reported a 2024 net loss of about $1.5 million.
4 December 2025
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Polyrizon Ltd (PLRZ) Stock Soars on Nasal Spray Milestone: Latest News, AI Forecasts and Risk Outlook – December 3, 2025

Polyrizon Ltd (PLRZ) Stock Soars on Nasal Spray Milestone: Latest News, AI Forecasts and Risk Outlook – December 3, 2025

Polyrizon Ltd shares surged 130% on December 2 after announcing a manufacturing upscaling milestone for its PL‑14 nasal allergy blocker. The stock closed at $7.33, up from $3.16, with trading volume near 150 million shares. The Israeli biotech, which has no approved products or revenue, now trades around $6 pre-market. Polyrizon develops intranasal hydrogel sprays and remains in the pre-commercial stage.
3 December 2025
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Polyrizon (PLRZ) Stock Soars Over 130% on Nasal Spray Breakthrough: Is This Micro-Cap Biotech the Next Big Winner or a Speculative Trap?

Polyrizon (PLRZ) Stock Soars Over 130% on Nasal Spray Breakthrough: Is This Micro-Cap Biotech the Next Big Winner or a Speculative Trap?

Polyrizon Ltd. shares surged 131.96% on December 2, 2025, closing at $7.33 after announcing a key manufacturing milestone for its PL-14 nasal spray. Intraday trading saw prices swing between $5.85 and $8.36 on volume over 148 million shares. The Israeli biotech, still pre-commercial with no approved products or revenue, now holds a market cap near $14–15 million.
2 December 2025
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Stock Market Today

  • Top 10 Most Shorted ASX Stocks and Weekly Market Movers
    June 28, 2026, 11:00 PM EDT. The latest Short Seller Series highlights the 10 most heavily shorted stocks on the Australian Securities Exchange (ASX). This report also tracks significant weekly shifts in short interest, indicating which stocks are attracting more or less bearish bets. Investors often study short interest as it reflects market sentiment, showing which shares traders expect to fall. This update provides insight into the biggest risers and fallers in short positions, helping investors gauge potential market moves and emerging risks.

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