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Last updated : 20/10/2026 - 16h10
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Nanobiotix stock rebounds 7%, second-largest gain in SBF 120

The Parisian oncological nanomedicine biotech rebounds sharply in mid-afternoon, against the trend of a declining Paris market. This uptick occurs after a month of steep decline, which has wiped out most of the stock's technical levels.


Nanobiotix stock rebounds 7%, second-largest gain in SBF 120

A 7% rebound countering a declining SBF 120

The stock gains 6.95% to €20.16 versus €18.85 the previous day, while the SBF 120 falls 0.62% and the CAC 40 drops 0.61%. This increase places the value in second place in the index, just behind Genfit (+7.58%). It nonetheless only partially reduces a decline of 32.5% over one month, with the price remaining below its three moving averages: the gap is 15.5% with the 20-day MA at €23.87 and 32.1% with the 50-day MA at €29.69.

The RSI at 22.8, in oversold territory, summarizes the extent of the slide. The previous day, the stock had broken through its support level of €19.12. Today's rebound brings it back above this level, without the €18.85 support being called into question.

Cash reserves of €110.9 million financing operations until 2029

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When publishing its financial update for the first half of 2026 on September 24, Nanobiotix reported €110.9 million in cash reserves. The company estimates this will allow it to finance its operations until 2029. This level includes the capital increase of approximately €86 million carried out in May, which brought liquidity well above the €52.8 million at the end of 2025.

The group is developing the radioamplifier NBTXR3 (JNJ-1900), associated with radiotherapy, in partnership with Johnson & Johnson. Nanobiotix is listed both in Paris and on the Nasdaq, where its ADSs (NBTX) trade at a one-to-one ratio with ordinary shares. The stock had lost more than 32% in one month at the previous close, and the nearest resistance level is at €32.5.



Sector Pharmacie et biotechnologies › Biotechnologies


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Context

Period
  • Period: S1 2026
Key reported figures
  • Revenue: 3,6 millions d'euros
  • Quarterly revenue: 3,6 millions d'euros
  • Net income: -34,3 millions d'euros
Guidance from the release
  • « la Société estime qu'elle disposera des liquidités suffisantes pour faire face à ses obligations financières […] pendant au moins les 12 prochains mois […] pas de doute substantiel quant à la capacité de la Société à poursuivre son activité » ; CP du 24/09 : trésorerie de 110,9 M€ « permettront de financer ses opérations jusqu'en 2029 »

The information presented in this article is provided for informational purposes only and does not constitute an investment recommendation, an incentive to buy or sell a financial asset, or investment advice. Readers are invited to conduct their own research before making any decision.

Investments in the stock market involve risks, including the risk of capital loss. Past performance of an asset or market is no guarantee of future results. Any investment decision should be made taking into account your personal financial situation, objectives and risk tolerance.

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