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California Water Service Earns G480 Platinum Certification for Water-Use Efficiency, Conservation Program

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Historical context for CWT

Across the 24 sessions after earlier CWT headlines, the stock closed higher 11 times and lower 13 times, with a median move of 1.0% in either direction. This shows timing only: many things move a stock in a session, and these figures do not show that any headline caused a move.

CWT close-to-close change in the session after earlier headlines
SessionEarlier headlineCWTSPY
May 21, 2026California Water Service Group Promotes Tamara S. Johnson to Vice President, California Operations and Gregory D. Shimansky to Vice President, Rates and Regulatory Affairs-0.3%+0.2%
May 19, 2026California Water Service Group Highlights Leadership in Environmental Stewardship and Corporate Citizenship in 2025 Sustainability Report+0.2%-0.7%
May 14, 2026TIME Names California Water Service Group One of the World's Most Impactful Companies+0.3%+0.8%
May 1, 2026California Public Utilities Commission Issues Decision in California Water Service's 2024 General Rate Case, Infrastructure Improvement Plan+0.3%+0.3%
Apr 30, 2026California Water Service Group Reports First Quarter 2026 Financial Results & Provides Update on 2024 California General Rate Caseand 1 other headline that session-6.9%+1.0%
Apr 15, 2026California Water Service Group Earns 2026 National USA Today Top Workplaces Award-1.0%+0.8%
Quantisnow market dataNYSE
California Water Service Group logo
CWT
California Water Service Group
Market cap
30-day
Sector
Utilities
Industry
Water Supply
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