Benzinga’s Top Pre- Market Gainers (ACAS, GRMN, TNDM, ARNA)

American Capital Ltd. (NASDAQ: ACAS) rose 18% after reported net operating income for the third quarter of $32 million or $0.12 per share and Net income was $77 million or $0.30 a share. On average, analysts polled by Thomson Reuters expected the company to earn $0.12 per share on revenues of $155.30 million for the quarter.

Garmin Ltd. (NASDAQ: GRMN) climbed 5% to $32.95 after it reported third-quarter earnings of $205 million, or $1.07 a share and adjusted earnings per share were $1.02 compared to 87 cents. While, Sales were $781 million compared to $870 million. Analysts polled by FactSet Research estimated, on average, earnings per share of 69 cents and sales of $698 million.

Neutral Tandem Inc. (NASDAQ: TNDM) jumped 11% after it posted a higher quarterly profit that beat estimates by a penny, boosted by a 45 percent surge in billed minutes.

Arena Pharmaceuticals, Inc. (NASDAQ: ARNA) surged 6.53% to $3.52 on no news.