The Chicago Board Options Exchange (CBOE) submitted a latest 19b-4 form on behalf of financial services company Franklin Templeton for its Ethereum spot ETF application to the US Securities and Exchange Commission (SEC). Franklin Templeton had already submitted its S-1 application to the SEC last Monday. The 19b-4 form is a document submitted by the exchange to the US Securities and Exchange Commission (SEC), mainly used to apply for new trading products (such as ETFs) or modify trading rules. In contrast, the S-1 application is a registration statement submitted by a company planning to conduct an initial public offering (IPO), aimed at providing detailed information about the company, including financial status, business model, etc., to potential investors to make investment decisions. In short, the 19b-4 form focuses on the exchange's products and rule changes, while the S-1 application focuses on the company's public offering and fundraising process.