On January 1, Y-Company purchased equipment for $425,000 from Big Corporation for use in its manufacturing process. Y-Company paid for the equipment with funds borrowed from New York Bank. Y-Company gave New York Bank an authenticated security agreement covering Y-Company’s existing and after-acquired equipment. On January 10, Y-Company was petitioned involuntarily into bankruptcy under Chapter 7 of the Federal Bankruptcy Code. A bankruptcy trustee was appointed. On January 19, New York Bank duly filed a sufficient financing statement. Which of the parties will have a superior security interest in the equipment? Explain in legal terms.