Atmega328P Bootloader

Hello Folks, I bought a small batch (five) of the microcontrollers Atmega328P-PU (IC only) and was wondering if normally they would come with a bootloader or no?

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I bought them off ebay. In fact I found out that they were all blank, once they were programmed/flashed with a proper bootloader with the help of an USBTyneISP avr programmer they are working like champions.
Thanks