Oceaneering International (OII) Market Capitalization (2009 - 2026)

Oceaneering International (OII) has reported Market Capitalization for 18 consecutive years, with $4.0 billion the latest figure, recorded in Q2 2026.

• On a quarterly basis, Market Capitalization rose 75.61% year-over-year to $4.0 billion in Q2 2026; TTM through Jun 2026 was $4.0 billion, a 75.61% increase from a year earlier, with the FY2025 full-year figure at $2.4 billion, down 17.37% from the prior year.
• Market Capitalization was $4.0 billion for Q2 2026 at Oceaneering International, up from $3.5 billion in the prior quarter.
• Over five years, Market Capitalization peaked at $4.0 billion in Q2 2026 and troughed at $882.2 million in Q3 2022.
• A 5-year average of $2.4 billion and a median of $2.4 billion in 2025 frame the typical range for Market Capitalization.
• Across the five-year window, Market Capitalization plunged 33.63% in 2022 and jumped 223.12% in 2023, its largest moves.
• Over 5 years, Market Capitalization stood at $1.9 billion in 2022, then gained by 21.67% to $2.4 billion in 2023, then rose by 22.56% to $2.9 billion in 2024, then dropped by 17.37% to $2.4 billion in 2025, then soared by 68.85% to $4.0 billion in 2026.
• The last three Market Capitalization figures came in at $4.0 billion (Q2 2026), $3.5 billion (Q1 2026), and $2.4 billion (Q4 2025), per Business Quant data.