Trading Company (Rank)

OTC Air Florida System ** (14)

OTC Alaska Diversified Resources (85)

OTC AM Cable TV Industries (49)

OTC Amarco Resources * (61)

OTC Andersen 2000 * (59)

OTC Apple Computer (1)

OTC Aracca Petroleum (72)

OTC ASK Computer Systems (8)

OTC Barton Valve (51)

OTC Bedford Computer (11)

OTC Bio-Medical Sciences * (4)

AMEX Blocker Energy (71)

OTC Cado Systems ** (55)

OTC Centuri (33)

OTC Chemical Investors (9)

OTC Chemold * (25)

AMEX Commodore ** (79)

OTC Compucorp (95)

OTC Computer Associates Int'l. (40)

OTC Computer Designed Systems (42)

OTC CPT ++ (93)

NYSE Cray Research *** (80)

OTC Creative Foods * (34)

OTC C3 * (89)

OTC David Jamison Carlyle (77)

OTC Dysan * (43)

OTC Electro-Biology * (2)

AMEX EnerServ Products (92)

OTC Ferrofluidics (94)

OTC Flare (3)

OTC Flight Transportation * (31)

OTC Geophysical Systems (58)

OTC Gulf Energy * (15)

OTC HBO & Co. (91)

OTC Health Extension Services * (65)

OTC Healthdyne (35)

OTC HemoTec (30)

NYSE Heritage Communications + (38)

OTC Hurco Manufacturing * (90)

OTC Immuno Nuclear (78)

OTC Intelligent Systems * (82)

OTC Inter-Tel * (19)

OTC Interface Mechanisms ** (73)

OTC Intergraph (66)

OTC Int'l. Game Technology (24)

AMEX Intertec Data Systems (37)

OTC Jefferson-Williams Energy (67)

OTC Key Pharmaceuticals * (74)

OTC Kyle Technology (88)

OTC Lexidata (17)

OTC Liz Claiborne (36)

OTC Machine Technology (68)

OTC Magnetic Head * (28)

OTC Majestic Electroc Industries (64)

OTC Matrix ** (100)

OTC M.D.C. * (32)

OTC Micom Systems (12)

OTC Microdyne (97)

OTC Miller Tech. & Communications (52)

OTC Minnetonka * (87)

NYSE NBI ** (20)

OTC Network Systems * (27)

OTC Newport Pharmaceuticals Int'l. * (84)

OTC North American Watch * (99)

OTC Nuclear Pharmacy * (69)

OTC Nuclear Support Services (39)

OTC Nupec Resources (23)

OTC Nutri/System * (26)

OTC Omnimedical (56)

OTC Oxoco (50)

OTC Pacer Technology & Resources * (41)

NYSE Paradyne ** (81)

NYSE Pengo Industries (53)

OTC Petroleum Equipment Tools ** (70)

OTC Printronix ** (48)

OTC Quality Care ** (83)

OTC Reeves Communications ** (75)

OTC Royalpar Industries (45)

OTC RSI ** (10)

OTC S.A.L. Cable Communications (86)

AMEX Sage Energy (16)

OTC Saxon Oil * (62)

OTC Sea Galley Stores (44)

OTC Seal Fleet * (7)

OTC Seisdata Services (5)

OTC Seneca Oil * (76)

OTC Service Fracturing (98)

OTC Shopsmith ** (46)

OTC Sterling Oil of Oklahoma * (23)

OTC Sterling Pipe & Supply * (24)

OTC Swanton * (54)

OTC Symbol Technologies * (63)

OTC Taco Charley (29)

OTC Tandem Computers *** (18)

OTC Tandon * (13)

OTC Team * (96)

OTC Texas Energies * (60)

OTC Tomlinson Oil *** (47)

OTC Triad Systems ** (57)

OTC Vector Graphic (6)

* 1981 INC. 100

** 1980-81 INC. 100

*** 1979-80-81 INC. 100

+ 1980 INC. 100

++ 1979-80 INC. 100 OTC -- over-the-counter AMEX -- American Stock Exchange NYSE -- New York Stock Exchange