Corporate News Update – 20 October 2026

Rubico (RUBI) – Stock Performance

  • Closing Price (10:31 PM CET, 20 Oct 2026): USD 0.18
  • 24‑Hour Change: Down 45.27 %
  • Market Capitalisation: USD 354.8 k
  • Shares Outstanding: 909.8 k
  • 24‑Hour Trading Volume: USD 15 m
  • Monthly Performance (last month end): Down 74.32 %
  • 200‑Day Simple Moving Average: USD 185.31
  • 52‑Week High: USD 75,000 (11 Apr 2025)
  • 52‑Week Low: USD 0.19 (19 Oct 2026)
TickerCurrent Price24‑Hour ChangeMarket Capitalisation
C3is (CISS)USD 0.56+3 %USD 174.3 k
Prospex Energy (PXEN.L)GBX 5.850 %GBX 34.8 m
Optimind Pharma (OMND.CN)CAD 0.010 %CAD 515.7 k
Helium One Global (HE1.L)GBX 0.300 %GBX 41.6 m
Devin Energy (DVC‑H.V)CAD 0.080 %CAD 446.9 k

C3is (CISS) – Additional Regulatory Information

  • Filed a series of “EFFECT” submissions with the SEC on 16 Oct 2026.
  • Filings confirmed status under the 1933 Act and reaffirmed the company’s business and mailing address in Athens, Greece.
  • No new operational or financial information was disclosed; filings served to update regulatory records.

Summary

Rubico experienced a significant decline in its share price and trading volume during the 24‑hour period ending at 10:31 PM Central Europe on 20 Oct 2026. The company’s market capitalisation remains below USD 0.4 million. In contrast, the related stocks listed above have either increased modestly or remained flat, with market capitalisations ranging from CAD 515.7 k to GBX 34.8 m.