- BKEM — BNY Mellon Emerging Markets Equity ETF
- BKEN — Bakken Energy Corp.
- BKF — iShares MSCI BIC ETF
- BKFAF — Brookfield Asset Management Inc
- BKFCF — Bank of Communications Co., Ltd.
- BKFG — BKF Capital Group, Inc.
- BKFI — BNY Mellon Active Core Bond ETF
- BKFKF — P/F Bakkafrost
- BKFPF — Brookfield Asset Management Inc
- BKGFF — The Berkeley Group Holdings plc
- BKGFY — The Berkeley Group Holdings plc
- BKGI — BNY Mellon Global Infrastructure Income ETF
- BKGM — BankGuam Holding Company
- BKH — Black Hills Corporation
- BKHA — Black Hawk Acquisition Corporation
- BKHAR — Black Hawk Acquisition Corporation
- BKHAU — Black Hawk Acquisition Corporation Units
- BKHPF — Bank Hapoalim B.M.
- BKHY — BNY Mellon High Yield ETF
- BKHYY — Bank Hapoalim B.M.
- BKI.TO — Black Iron Inc.
- BKIE — BNY Mellon International Equity ETF
- BKIMF — Bankinter, S.A.
- BKIRF — Black Iron Inc.
- BKKLY — Bangkok Bank Public Company Limited
- BKKPF — Bangkok Bank Public Company Limited
- BKKT — Bakkt Holdings, Inc.
- BKLC — BNY Mellon US Large Cap Core Equity ETF
- BKLG — BNY Mellon US Large Cap Equity Growth ETF
- BKLIF — Blockmint Technologies Inc.
- BKLN — Invesco Senior Loan ETF
- BKLRF — Berkeley Energia Limited
- BKM.V — Pacific Booker Minerals Inc.
- BKMC — BNY Mellon US Mid Cap Core Equity ETF
- BKMI — BNY Mellon Municipal Intermediate ETF
- BKMM — Bekem Metals, Inc.
- BKMP — Blackout Media Corp.
- BKMS — BNY Mellon Municipal Short Duration ETF
- BKMT.V — Blockmint Technologies Inc.
- BKNG — Booking Holdings Inc.
- BKNIY — Bankinter, S.A.
- BKOR — Oak Ridge Financial Services, Inc.
- BKPKF — Bank Polska Kasa Opieki S.A.
- BKQNF — Bank of Queensland Limited
- BKQNY — Bank of Queensland Limited
- BKR — Baker Hughes Company
- BKRIF — Bank of Ireland Group plc
- BKRIY — Bank of Ireland Group plc
- BKRKF — PT Bank Rakyat Indonesia (Persero) Tbk
- BKRKY — PT Bank Rakyat Indonesia (Persero) Tbk
- BKRP — Black Rock Petroleum Company
- BKRRF — Blackrock Silver Corp.
- BKSC — Bank of South Carolina Corporation
- BKSE — BNY Mellon US Small Cap Core Equity ETF
- BKSLF — Banks Island Gold Ltd.
- BKSY — BlackSky Technology Inc.
- BKT.AX — Black Rock Mining Ltd
- BKTH — Breakthrough Chemistry, Inc.
- BKTI — BK Technologies Corporation
- BKTPF — Cruz Battery Metals Corp.
- BKU — BankUnited, Inc.
- BKUCF — Blue Sky Uranium Corp.
- BKUH — Bakhu Holdings, Corp.
- BKUI — BNY Mellon Ultra Short Income ETF
- BKUT — Bank of Utica
- BKUTK — Bank of Utica
- BKV — BKV Corporation
- BKY.AX — Berkeley Energia Limited
- BKYI — BIO-key International, Inc.
- BKZHF — Santander Bank Polska S.A.
- BL — BlackLine, Inc.
- BLAB.CN — Britannia Life Sciences Inc.
- BLAGF — Blue Lagoon Resources Inc.
- BLBD — Blue Bird Corporation
- BLBLF — Bilibili Inc.
- BLBRF — Bloomberry Resorts Corporation
- BLBX — Blackboxstocks Inc.
- BLCK.TO — First Trust Indxx Innovative Transaction and Process ETF
- BLCO — Bausch + Lomb Corporation
- BLCO.TO — Bausch + Lomb Corporation
- BLCR — iShares Large Cap Core Active ETF
- BLDG — Cambria Global Real Estate ETF
- BLDP — Ballard Power Systems Inc.
- BLDP.TO — Ballard Power Systems Inc.
- BLDR — Builders FirstSource, Inc.
- BLDV — Blue Diamond Ventures, Inc.
- BLDX — Impax Global Infrastructure ETF
- BLEG — Branded Legacy Inc
- BLES — Inspire Global Hope ETF
- BLEVF — Beleave Inc.
- BLFE — BioLife Sciences Inc.
- BLFR — BlueFire Equipment Corporation
- BLFS — BioLife Solutions, Inc.
- BLG.AX — BluGlass Limited
- BLGO — BioLargo, Inc.
- BLGR — Bluemonte Large Cap Growth ETF
- BLGV.CN — Belgravia Hartford Capital Inc.
- BLGVF — Belgravia Hartford Capital Inc.
- BLHK — Blueharbor Bank
- BLHWF — BELIMO Holding AG