什么是“P股”啊？

P股是香港上市的股票。P股是在中国境外注册、在香港上市的中国民营企业（非国有公司）股票。以下来自MSCI官网。

The China mainland equity market is comprised of A, B, H, Red chip and P chip share classes. A shares are incorporated in China and trade on the Shanghai and Shenzhen exchanges; they are quoted in local renminbi and entail foreign investment regulations (QFII). B shares are incorporated in China, and trade on the Shanghai and Shenzhen exchanges; they are quoted in foreign currencies (Shanghai USD, Shenzhen HKD) and are open to foreign investors. H shares are incorporated in China and trade on the Hong Kong exchange and other foreign exchanges. Red chips and P chips are incorporated outside of China and trade on the Hong Kong exchange. Red chips are usually controlled by the state or a province or municipality. P chips are Non state-owned Chinese companies incorporated outside the mainland and traded in Hong Kong. （https://www.msci.com/documents/10199/e67c4c7b-b016-4e59-a460-b42574cde2e6）

❶ P股是在中国境外注册、在香港上市的中国民营企业（非国有公司）股票。
❷P通“屁”，连起来就是指臀部～～～

是“屁股”的一种写法。