| WA Western Alliance Bancorporation | WAL | Financial services |
| WM Western Midstream Partners LP | WES | Energy |
| WU Western Union Co | WU | Financial services |
| WA Westinghouse Air Brake Technologies Corp | WAB | Industrials |
| WC Westlake Chemical Corporation | WLK | Basic materials |
| WC Westlake Chemical Partners LP | WLKP | Basic materials |
| WR Westwater Resources Inc | WWR | Basic materials |
| WH Westwood Holdings Group Inc | WHG | Financial services |
| WF West Fraser Timber Co Ltd | WFG | Basic materials |
| WP West Pharmaceutical Services Inc | WST | Healthcare |
| WE Wex Inc | WEX | Technology |
| WC Weyerhaeuser Company | WY | Real estate |
| WU Wheels Up Experience Inc | UP | Industrials |
| WH Whirlpool Corporation | WHR | Consumer cyclical |
| WR Whitestone REIT | WSR | Real estate |
| WM White Mountains Insurance Group Ltd | WTM | Financial services |
| WI WideOpenWest Inc | WOW | Communication services |
| WC Widepoint C | WYY | Technology |
| WC Williams Companies Inc | WMB | Energy |
| WI Williams-Sonoma Inc | WSM | Consumer cyclical |
| WI Winnebago Industries Inc | WGO | Consumer cyclical |
| WI WisdomTree Inc. | WT | Financial services |
| WW Wolverine World Wide Inc | WWW | Consumer cyclical |
| WE Woodside Energy Group Ltd | WDS | Energy |
| WF Woori Financial Group Inc | WF | Financial services |
| WO Workiva Inc | WK | Technology |
| WK World Kinect Corporation | WKC | Energy |
| WI Worthington Industries Inc | WOR | Industrials |
| WS Worthington Steel Inc | WS | Basic materials |
| WG WW Grainger Inc | GWW | Industrials |
| WH Wyndham Hotels & Resorts Inc | WH | Consumer cyclical |
| WP W P Carey Inc | WPC | Real estate |
| WO W&T Offshore Inc | WTI | Energy |
| WR W. R. Berkley Corp | WRB | Financial services |
| XH Xenia Hotels & Resorts Inc | XHR | Real estate |
| XP Xpeng Inc | XPEV | Consumer cyclical |
| XP Xperi Corp | XPER | Technology |
| XI XPLR Infrastructure LP Unit | XIFR | Utilities |
| XF Xponential Fitness Inc | XPOF | Consumer cyclical |
| XL XPO Logistics Inc | XPO | Industrials |
| XM Xtant Medical Holdings Inc | XTNT | Healthcare |
| XY Xylem Inc | XYL | Industrials |
| XF X Financial Class A | XYF | Financial services |
| YG Yalla Group Ltd | YALA | Technology |
| YH Yatsen Holding | YSG | Consumer defensive |
| YE Yelp Inc | YELP | Communication services |
| YH YETI Holdings Inc | YETI | Consumer cyclical |
| YE Yext Inc | YEXT | Technology |
| YI Yirendai Ltd | YRD | Financial services |
| YO Youdao Inc | DAO | Consumer defensive |
| YS YPF Sociedad Anonima | YPF | Energy |
| YC Yum China Holdings Inc | YUMC | Consumer cyclical |
| YB Yum! Brands Inc | YUM | Consumer cyclical |
| ZE Zedge Inc | ZDGE | Communication services |
| ZI ZEEKR Intelligent Technology Holding Limited | ZK | Consumer cyclical |
| ZH Zepp Health Corp | ZEPP | Technology |
| ZG Zeta Global Holdings Corp | ZETA | Technology |
| ZP Zevia Pbc | ZVIA | Consumer defensive |
| ZH Zhihu Inc ADR | ZH | Communication services |
| ZB Zimmer Biomet Holdings Inc | ZBH | Healthcare |
| ZI ZIM Integrated Shipping Services Ltd | ZIM | Industrials |
| ZI Ziprecruiter Inc | ZIP | Communication services |
| ZG ZKH Group Limited | ZKH | Consumer cyclical |
| ZO Zoetis Inc | ZTS | Healthcare |
| ZE ZTO Express (Cayman) Inc | ZTO | Industrials |
| ZE Zurn Elkay Water Solutions Corporation | ZWS | Industrials |