Cboe BZX Exchange has submitted 19b-4 application documents to the US SEC for Canary PENGU ETF Cboe BZX Exchange has submitted a 19b-4 application to the US Securities and Exchange Commission (SEC) for the Canary PENGU ETF. In the "Text of Proposed Rule Changes" section of this document, it is stated that, According to Section 19 (b) (1) of the Securities Exchange Act of 1934 and Rule 19b-4 of the same Act, Cboe BZX Exchange proposes to list and trade shares of Canary PENGU ETF under BZX Rule 14.11 (e) (4) (Commodity Trust Shares).