I would be a perfect fit for this position and would be more than able to meet your customers expectations in terms of efficiency, accuracy, timeliness and professionalism of response. For the past three years I have been working for Andrews Banking Group, where I have gained a reputation for being accurate, honest and efficient in everything. Im simply the best at everything I do. Ill be calling you next Wednesday to schedule a meeting. Equally, dont undersell yourself. Quiet confidence in your skills and experience is the way to go. One internet commentator even labelled the investment banking cover letter a barbaric and sadistic requirement. Sadistic and barbaric they might be, but if an investment bank asks for a covering letter you probably wont get the job sending in a letter written in comic sans with just giss us a job.
You should be able convey why youve applied for that particular bank and that particular position in your cover letter. Implicit in your letter should be an understanding of what an investment bank does and the realities of the role that you are applying for.