Castellum, Inc. (CTM:NYSEMKT) closed at $0.515 on October 26, 2026, down 4.74% on the day. The stock trades 62.2% below its 52-week high of $1.36 and 7.2% above its 52-week low of $0.480. Over the past year, it lost 44.5%. Castellum, Inc. is part of the Technology sector.
In 252 trading sessions since October 23, 2025, CTM closed higher on 102 days (40%). Its best day was May 26, 2026 (+17.39%) and its worst was August 7, 2026 (-22.74%). The stock moved 10% or more in a single session 10 times. It opened at least 5% above the previous day's high 3 times.
Castellum Inc, formerly BioNovelus Inc is engaged in acquiring and growing technology companies in the areas of information technology and cybersecurity with businesses in the public (government) and private (commercial) markets. The company's services include intelligence analysis, software development, software engineering, program management, strategic planning, information assurance and cybersecurity and policy along with analysis support.
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Based on end-of-day data. For information only, not investment advice.