Superior Offshore International (DEEP) started traded in the secondary market today. I requested shares for the IPO but unfortunately I was not allocated any shares. Still, I bought DEEP in the secondary market today. I bought 250 shares at 17.25 and 500 shares at 17.50 and then sold all 750 shares at 18.00 five minutes later, for a total profit of around $400. It would have been much better if I was allocated shares for the IPO. I requested for 2500 shares, but I was not allocated a single share. Clearly, I am not getting a piece of the IPO market. I have to look into ways of getting my hands on the IPO shares. How do I increase my chances of being allocated shares for the IPO market?