Hacienda Luisita farmworkers from Alyansa ng Manggagawang-Bukid sa Asyenda Luisita (AMBALA) and United Luisita Workers' Union (ULWU) protested against Stock Distribution Option (SDO) and proposed referendum. They were joined by Kilusang Magbubukid ng Pilipinas (KMP), KASAMA-TK, Kilusang Mayo Uno (KMU), League of Filipino Students (LFS), Anakbayan, PISTON, Courage and other progressive groups.