Do you mean the normal Anejo Shark 77 release? These are released typically twice a year (before the winter Holidays and sometime around Father's day). They go quickly and are typically more sought after than the regular production Opus X. You just need to keep a look out. There was a recent release of the "Eye of the Shark." It was for Fuente Sr. 80th (not as good as the Anejo IMO). There was also the "Sand Shark" release and various Opus X Shark releases.
I usually purchase a box around Noember-December but smoke them in a month. I have one left. :whistling: