Complex sentence: The Bloomberg Global Identifier (BBGID) is an open standard, unique identifier of financial instruments that can be issued to instruments including common stock, options, derivatives, futures, corporate and government bonds, municipals, currencies, and mortgage products.
Split into simpler sentences: The Bloomberg Global Identifier (BBGID) is an open standard, unique identifier of securities. Financial instruments to which BBGIDs can be issued include common stock, options, derivatives, futures, corporate and government bonds, municipals, currencies, and mortgage products.