INSW ×2.4. Matson ×2.5, Kirby +59.5%, Royal Caribbean Cruises −7.5%, Carnival −8.5%. Weekly closes, Oct 17, 2025 = 100, log scale.

End-of-day closes (Databento EOD), the last close of each week. The four peers are the largest US-listed companies by market value in INSW’s SEC industry (Water Transportation) with a year of closes. It shows what the closes did; a move here is not a cause, a forecast or a call.