开盘$67.03
昨收$67.85
当日区间$66.47 – $69.00
成交量166.2K
市值$1.52B
市盈率（TTM）352.3
股息率2.36%
股权结构与仓位
谁在持有、谁在做空，以及大资金的流向
机构持股比例89.4%+0.27 个百分点，较上季度
持仓机构数273+2 ，较上季度
内部人近期交易26次买入 / 10次卖出净买入
空头持仓比例3.04% 占流通股回补天数 4.9 · 截至 15 Oct 2026
卖空成交量占比25.1%近5日成交量平均占比
卖空成交量占当日成交量比例
大单净流入，近20个交易日
大单买入减卖出的净额（美元）。该窗口期内：+$721.3K（8个净流入日，12个净流出日）。
按单量净流入，近20个交易日
超大单/大单近似机构级别交易；中单/小单近似散户级别交易。各档买入减卖出净额，按窗口期累计。
已披露的前五大股东合计持有38.3%的流通股。
最大股东
按投资者类型
过去6次双周报告中（31 Jul 2026至15 Oct 2026），空头持仓占流通股比例已从2.60%升至3.04%。
近期机构持仓变动
| 股东 | 类型 | 期间 | 持股变动 | 新持股比例 |
|---|---|---|---|---|
| Dimensional Fund Advisors | Mutual Fund | 2026/Q3 | +66,990 | 5.2% |
| Nuveen Asset Management LLC | Insurance Company | 2026/Q3 | +47,992 | 0.8% |
| Inspire Investing, LLC | Mutual Fund | 2026/Q3 | +37,542 | 0.2% |
| American Century Investment Management | Mutual Fund | 2026/Q3 | +216,411 | 4.2% |
| BlackRock | Mutual Fund | 2026/Q3 | +147,288 | 15.2% |
| Norges Bank Investment Management | Sovereign Wealth Fund | 2026/Q3 | +102,891 | 0.6% |
| Acadian Asset Management LLC | Mutual Fund | 2026/Q3 | +96,738 | 0.4% |
| Edgestream Partners, L.P. | Hedge Fund | 2026/Q3 | +88,077 | 0.4% |
| UBS Asset Management | Mutual Fund | 2026/Q3 | +77,178 | 0.9% |
| Franklin Resources | Mutual Fund | 2026/Q3 | +64,845 | 0.3% |
| Two Sigma Investments, LP | Hedge Fund | 2026/Q3 | +59,446 | 1.7% |
| AQR Capital Management | Hedge Fund | 2026/Q3 | +55,277 | 1.3% |
| Trexquant Investment LP | Hedge Fund | 2026/Q3 | +51,273 | 0.5% |
| Millennium Management LLC | Hedge Fund | 2026/Q3 | +50,982 | 0.4% |
| Core Capital Management and Research, Inc. | Family Office/Trust | 2026/Q3 | +47,917 | 0.2% |
按报告期列出的机构买卖动态，变动幅度从大到小排列。
内部人交易
| 日期 | 内部人 | 职位 | 交易类型 | 股数 | 价格 | 交易后持股 |
|---|---|---|---|---|---|---|
| 25 Aug 2026 | Shawn Lisle | Derivative Exercise and Sale | -339 | $62.35 | 841 | |
| 25 Aug 2026 | Shawn Lisle | Derivative Exercise and Retained | +815 | $62.35 | 841 | |
| 9 Aug 2026 | Ruben Velasquez | Senior Vice President | Derivative Exercise and Sale | -398 | $64.68 | 996 |
| 9 Aug 2026 | Ruben Velasquez | Senior Vice President | Derivative Exercise and Retained | +960 | $64.68 | 996 |
| 3 Aug 2026 | Matthew Eaken | VP, Principal Accounting Officer & Corporate Controller | Initial Statement of Beneficial | +0 | – | 3,435 |
| 10 May 2026 | Robin Weitkamp | Derivative Exercise and Sale | -50 | $52.58 | 137 | |
| 10 May 2026 | Robin Weitkamp | Derivative Exercise and Retained | +40 | $52.58 | 137 | |
| 7 May 2026 | Jan Reed | Former Independent Director | Other Acquisition | +2,566 | $52.61 | 16,477 |
| 7 May 2026 | F. Stepan | Non-Executive Chairperson | Other Acquisition | +2,566 | $52.61 | 640,361 |
| 7 May 2026 | Corning Painter | Independent Director | Other Acquisition | +2,566 | $52.61 | 4,999 |
| 7 May 2026 | Joaquin Delgado | Independent Director | Other Acquisition | +2,566 | $52.61 | 18,637 |
| 7 May 2026 | Randall Dearth | Lead Independent Director | Other Acquisition | +2,566 | $52.61 | 16,672 |
| 7 May 2026 | Susan Lewis | Independent Director | Other Acquisition | +2,566 | $52.61 | 6,962 |
| 7 May 2026 | Lorinda Burgess | Independent Director | Other Acquisition | +2,566 | $52.61 | 5,900 |
| 30 Apr 2026 | Robert Haire | Executive Vice President of Supply Chain | Derivative Exercise and Sale | -162 | $50.33 | 4,050 |
| 30 Apr 2026 | Robert Haire | Executive Vice President of Supply Chain | Derivative Exercise and Retained | +388 | $50.33 | 4,050 |
| 12 Apr 2026 | Robin Weitkamp | Other Derivative Acquisition | +1,429 | – | 1,429 | |
| 12 Apr 2026 | Robin Weitkamp | Other Derivative Acquisition | +2,859 | – | 2,859 | |
| 12 Apr 2026 | Robin Weitkamp | Other Derivative Acquisition | +4,030 | $52.46 | 4,030 | |
| 12 Apr 2026 | Adriano Afonso | Senior VP & General Manager of Surfactants – North America | Other Derivative Acquisition | +1,310 | – | 1,310 |
数据来自Form 4/Form 144申报文件。负数为减持（出售、赠予或代扣税款股份），正数为增持。
空头持仓（按报告期）
| 报告日期 | 空头股数 | 占流通股比例 | 回补天数 |
|---|---|---|---|
| 15 Oct 2026 | 690,262 | 3.0% | 4.9 |
| 30 Sep 2026 | 661,474 | 2.9% | 3.8 |
| 15 Sep 2026 | 666,552 | 2.9% | 4.8 |
| 31 Aug 2026 | 689,825 | 3.0% | 6.8 |
| 14 Aug 2026 | 688,059 | 3.0% | 5.2 |
| 31 Jul 2026 | 591,427 | 2.6% | 3.5 |
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