Geron, Century Aluminum and Alkermes lead small-cap volume in pre-market

Geron Corp. (NasdaqGM:GERN - News), Century Aluminum Co. (NasdaqGS:CENX - News) and Alkermes Inc. (NasdaqGS:ALKS - News) are among the most actively traded companies in Tuesday's trading among companies with market capitalizations under $1 billion. Also included among the results: Eagle Bulk Shipping Inc (NasdaqGS:EGLE - News), Canadian Solar Inc. (NasdaqGM:CSIQ - News), Harmonic Inc. (NasdaqGS:HLIT - News), PDL BioPharma Inc. (NasdaqGS:PDLI - News), Pegasystems Inc. (NasdaqGS:PEGA - News) and TBS International Ltd. (NasdaqGS:TBSI - News). Here are the most actively traded companies among small caps: Price at 9:08 ET Change % Change Volume Year High Year Low GERN GERON CORP 5.80 +0.48 +9.0% 201.2k 8.50 1.95 CENX CENTURY ALUM CO 7.28 +0.35 +5.1% 114.1k 80.52 1.04 ALKS ALKERMES INC 9.18 +1.33 +16.9% 90.4k 17.05 5.55 EGLE EAGLE BULK SHIPPING INC 9.10 +0.59 +6.9% 73.2k 36.24 2.55 CSIQ CANADIAN SOLAR INC 9.60 +0.53 +5.8% 56.0k 51.80 3.00 HLIT HARMONIC INC 6.50 -1.23 -15.9% 52.1k 10.60 3.76 PDLI PDL BIOPHARMA INC 7.50 +0.11 +1.5% 44.1k 12.70 5.20 PEGA PEGASYSTEMS INC 22.01 +4.65 +26.8% 20.2k 19.55 9.58 TBSI TBS INTERNATIONAL LIMITED 10.70 +0.16 +1.5% 19.5k 61.95 3.40 UAUA UAL CORP 5.75 +0.14 +2.5% 16.3k 16.73 2.80