Here's the drugs/biotech "short portfolio" of Barr-Rosenberg, a so-called "market-neutral" fund:
  DRUGS -- 5.9%  12,800   Advanced Magnetics, Inc.*......        44,800  12,100   Algos Pharmaceuticals Corp.*...       297,963  22,000   Alkermes, Inc.*................       599,499  18,500   Amylin Pharmaceuticals,             Inc.*........................        19,656  14,600   Anesta Corp.*..................       329,413   1,800   Anika Therapeutics, Inc.*......         9,450  18,000   Aphton Corp.*..................       292,500  15,600   Arqule, Inc.*..................        72,150   9,000   Aviron*........................       182,250  20,100   Bio-Technology General             Corp.*.......................       119,972  22,400   Biocryst Pharmaceuticals,             Inc.*........................       142,800  10,500   Cel-Sci Corp.*.................        20,344  21,900   Celgene Corp.*.................       350,400   5,400   Centocor, Inc.*................       199,463  26,800   COR Therapeutics, Inc.*........       266,325  18,600   Creative Biomolecules, Inc.*...        43,013   5,900   Cygnus, Inc.*..................        44,250   2,100   Emisphere Technologies,             Inc.*........................        18,900  13,600   Gilead Sciences, Inc.*.........       618,799  28,400   Guilford Pharmaceuticals,             Inc.*........................       323,050  26,100   Human Genome Sciences, Inc.*...       905,343  13,000   Icos Corporation*..............       438,750  26,400   Imclone Systems, Inc.*.........       445,500  35,900   Immune Response Corp.*.........       316,369   3,900   Inhale Therapeutic Systems,             Inc.*........................       105,788  18,400   Interneuron Pharmaceuticals,             Inc.*........................        52,900  40,700   Isis Pharmaceuticals, Inc.*....       366,300  16,100   Lifecore Biomedical, Inc.*.....       139,869  25,600   Ligand Pharmaceutical, Inc.,             Class B*.....................       209,600  29,200   Magainin Pharmaceuticals,             Inc.*........................        45,625  27,100   Martek Biosciences Corp.*......       152,438
                See accompanying notes to the financial statements.                                        43 BARR ROSENBERG SERIES TRUST MARKET NEUTRAL FUND SCHEDULE OF SECURITIES SOLD SHORT (CONTINUED) -- MARCH 31, 1999 - --------------------------------------------------------------------------------
  SHARES                                     MARKET VALUE - -------                                    ------------           COMMON STOCKS (CONTINUED)           DRUGS (CONTINUED)  21,100   Molecular Biosystems, Inc.*....  $     56,706  10,600   Myriad Genetics, Inc.*.........        95,400  13,500   NEO RX Corporation*............        20,672  16,700   Neose Technologies, Inc.*......       228,581   4,200   Neurogen Corp.*................        44,888  26,000   Northfield Laboratories,             Inc.*........................       286,000  26,800   Noven Pharmaceuticals, Inc.*...       123,950  21,100   NPS Pharmaceuticals, Inc.*.....       158,250   5,300   Orphan Medical, Inc.*..........        38,425  10,700   OSI Pharmaceuticals, Inc.*.....        53,500  21,200   Pharmacyclics, Inc.*...........       349,800  21,900   Protein Design Labs, Inc.*.....       329,869  18,200   Research Frontiers, Inc.*......       129,675  19,500   Sangstat Medical Corp.*........       241,313   5,300   Sonus Pharmaceuticals, Inc.*...        39,750   5,700   Sugen, Inc.*...................       109,369  12,600   Synaptic Pharmaceuticals             Corp.*.......................        86,625  12,400   Theragenics Corp.*.............        86,800  19,600   Transkaryotic Therapies,             Inc.*........................       622,299  19,700   Triangle Pharmaceuticals,             Inc.*........................       210,544   4,000   Twinlab Corp.*.................        37,500   7,200   U.S. Bioscience, Inc.*.........        78,300  29,500   Vertex Pharmaceuticals,             Inc.*........................       744,874  22,800   Vical, Inc.*...................       233,700  11,700   Xoma Ltd.*.....................        35,831  21,000   Zila, Inc.*....................        79,406                                            ------------                                              11,695,506                                            ------------
  Matched against their long portfolio:
  DRUGS -- 5.2%  17,300   Agouron Pharmaceuticals,             Inc.*.......................        978,531   1,410   Allergan Specialty             Therapeutics, Inc., Class             A*..........................         14,100  20,100   Alpharma, Inc., Class A.......        788,925  18,200   Ambi, Inc.*...................         21,613  10,600   Biopool International,             Inc.*.......................          7,950  18,200   Biosite Diagnostics, Inc.*....        182,000  27,000   Cambrex Corp..................        597,375  25,700   Diagnostic Products Corp......        623,225  36,700   Gensia Sicor, Inc.*...........        103,219     300   Genzyme Corp.*................         15,131   1,329   Genzyme Molecular Oncology*...          4,984   5,300   Hi-Tech Pharmacal Co.,             Inc.*.......................         17,225   8,900   Hycor Biomedical, Inc.*.......          9,178  29,200   Idexx Laboratories, Inc.*.....        698,975  32,200   Immulogic Pharmaceutical             Corp.*......................         60,375   8,000   IVC Industries, Inc.*.........          6,500  84,100   Mallinckrodt, Inc.............      2,239,162  34,850   Medicis Pharmaceutical*.......      1,045,500  31,000   Medimmune, Inc.*..............      1,834,812   1,200   Millenium Pharmaceuticals,             Inc.*.......................         37,500   2,090   New Brunswick Scientific,             Inc.*.......................          9,732   5,600   PDK Labs, Inc.*...............         25,200  12,100   Quidel Corp.*.................         24,200   4,900   Regeneron Pharmaceutical             Inc.*.......................         32,463  41,600   Roberts Pharmaceutical             Corp.*......................        863,200   3,700   Schein Pharmaceutical,             Inc.*.......................         48,100                                           -------------                                              10,289,175                                           -------------            Can't say I see any rhyme or reason as to how they chose whether to be long or short any particular stock.
  No great sums in any one stock, but maybe enough to hurt some of the thinly traded third tiers for a while.
  I'm not sure just how many of these sorts of funds are out there.    
  Peter        |