BUZZ-U.S. STOCKS ON THE MOVE-Plasmatech, Nationstar, OpGen, RetailMeNot

(For faster updates on individual market-movers, Eikon users please use search string "STXBZ US"; for the Day Ahead newsletter, http://link.reuters.com/mex49s; for the Morning News Call newsletter, http://link.reuters.com/nex49s) U.S. stocks fell further in afternoon trading on Tuesday after the U.S. trade deficit surged in March, suggesting that the economy contracted in the first quarter. The Dow Jones industrial average was down 0.58 percent at 17,965.83 and the S&P 500 was down 0.92 percent at 2,095.14.

** PLASMATECH BIOPHARMACEUTICALS INC (NasdaqCM: PTBI - news) , $6.61, +131.12 pct

Soros Fund Management reported a 5.17 percent passive stake in the drug development company. The fund is the investment vehicle of billionaire financier George Soros.

** QUALYS INC (NasdaqGS: QLYS - news) , $38.4718, -30.15 pct

The security software maker forecast second-quarter profit and revenue below estimates. The company cut its full-year forecast to $165 millio-$166.5 million from $167.3 million-$169.3 million.

** NATIONSTAR MORTGAGE HOLDINGS INC, $19.63, -24.99 pct

Mortgage servicer reports a first quarter loss of 53 cents/share, including negative mark-to-market adjustments of 77 cents/share and 12-cent/share increase in amortization.

** GOLAR LNG LTD, $46.28, +22.95 pct

The Norwegian shipping company signed a 20-year contract for a LNG vessel with Ophir Energy Plc (Other OTC: OPGYF - news) . The contract will start in the first half of 2019.

** ACELRX PHARMACEUTICALS INC (NasdaqGM: ACRX - news) , $3.08, -26.67 pct

The U.S. Food and Drug Administration unit rejected the drug developer's request for a meeting to discuss need for additional trial of its pain drug device Zalviso.

RBC Capital Markets cuts price target to $7 from $8, while Jefferies cuts it to $3.50 from $6; median price target is $6.

** OPGEN INC, $4.74, -20.87 pct

The company's IPO of 2.9 million shares raises about $17.4 million, after it was priced at $6.00 per share, midpoint of expected price range.

** KULICKE & SOFFA INDUSTRIES INC, $13.8425, -11.15 pct

The semiconductor and LED assembly equipment maker forecasts third quarter revenue below estimates; second quarter profit misses estimate sa costs rise.

** A10 NETWORKS INC (NYSE: ATEN - news) , $4.99, +6.85 pct

Network equipment maker reports better-than-expected first quarter revenue, helped by higher sales to enterprise customers.

** WESTPORT INNOVATIONS INC (NasdaqGS: WPRT - news) , $6.86, +9.06 pct

Canadian natural gas engine technology maker says its WiNG Power System is to be used in Ford Motor Co (NYSE: F - news) 's F-150 trucks.

** EARTHLINK HOLDINGS CORP (NasdaqGS: ELNK - news) , $5.49, +13.20 pct

Network services provider reported better-than-expected first quarter revenue, helped by higher sales in its consumer services business.

** STURM RUGER & CO, $56.04, -4.30 pct

The firearms maker reported a 19 percent drop in first quarter net sales, 36 percent drop in profit. Firearms sales fell 20 percent.

** GENWORTH FINANCIAL INC (NYSE: GNW - news) , $8.78, -4.04 pct

Morgan Stanley (Xetra: 885836 - news) cuts rating on stock of the Life and mortgage insurer to "underweight" from "equalweight", price target to $8.00 from $8.50. Analysts expect company to sell a sizable portion of assets to cut debt, diluting EPS.

** ON DECK CAPITAL INC (NYSE: ONDK - news) , $17.48, -12.69 pct

At least two brokerages lowered target price on the online lender's stock after the company reported a first-quarter loss. Aside from growth, many investors we speak to are concerned about effective interest yield, which has been trending downward," Deutsche Bank (Xetra: 514000 - news) says.

** MARTHA STEWART LIVING OMNIMEDIA INC (NYSE: MSO - news) , $5.47, -6.50 pct

The media and merchandising company reported a surprise first quater loss as merchandising expenses rose and revenue fell more than expected.

** GAIN CAPITAL HOLDINGS INC, $9.44, -8.53 pct

The independent provider of online forex trading reported a lower-than-expected first quarter profit, mainly due to higher expenses.

** NEOSTEM INC (NasdaqCM: NBS - news) , $2.415, -14.36 pct

The drug developer reported a first quarter loss of about $19.2 million compared with a loss of $13.8 million a year earlier, as R&D costs rose.

** RETAILMENOT INC (NasdaqGS: SALE - news) , $20.17, +17.20 pct

The online coupon company posts its biggest intra-day percentage jump since listing in 2013. The company reported a better-than-expected first-quarter revenue and profit, helped by higher revenue from mobile transactions.

** CHUY'S HOLDINGS INC, $25.55, +15.35 pct

Jefferies Group raised price target on the stock of the restaurant chain operator to $24 from $22; median price target is $26. Analysts believe Chuy's can capitalize on strong regional positioning in fragmented casual Mexican segment and build national brand over time, they wrote in a note.

** ENERGY FOCUS INC (NasdaqCM: EFOI - news) , $6.15, +9.93 pct

The LED lighting product maker's first-quarter sales more than doubled, helped by higher shipments of its military Intellitube systems for U.S. Navy.

** SEVENTY SEVEN ENERGY INC (NYSE: SSE - news) , $5.27, +7.11 pct

The oilfield services provider reported a better-than-expected first-quarter revenue and smaller-than-expected quarterly loss.

** DIAMOND OFFSHORE DRILLING INC (NYSE: DO - news) , $35.61, +7.58 pct

Cowen & Co raises price target on stock to $28 from $25; Susquehanna Financial Group LLP to $30 from $26. Stock has a median price target of $25.

** CHANNELADVISOR CORP, $10.63, +6.09 pct

The E-commerce software company posts a smaller-than-expected first quarter loss, stronger-than-expected revenue as it earned more per customer.

** UBS (NYSEArca: FBGX - news) , $21.39, +5.06 pct

UBS said it is in advanced talks with the U.S. Department of Justice to settle allegations of foreign exchange market rigging, as Switzerland's biggest bank posted its highest quarterly profit in nearly five years.

** ABIOMED INC (NasdaqGS: ABMD - news) , $74.29, +14.05 pct

The medical device maker posted a better-than-expected fourth quarter revenue and profit, boosted by strong sales of its miniature blood pump device, Impella.

** FREIGHTCAR AMERICA INC (NasdaqGS: RAIL - news) , $25.06, -10.53 pct

The railcar maker reported a surprise loss and lower-than-expected revenue for the first quarter, mainly due to production related issues at its Shoals facility in Alabama.

** GOOD TIMES RESTAURANTS INC (NasdaqCM: GTIM - news) , $9.02, +6.87 pct

Restaurant chain owner's upsized offering of 2.4 mln shares priced at $8.15 per share, representing a discount of about 1 percent to stock's Friday close. Good Times says it will use proceeds to buy Bad Daddy's International LLC and its Bad Daddy's Burger Bar restaurants.

** MALLINCKRODT PLC, $121.505, +5.66 pct

Specialty pharmaceutical company posted better-than-expected Q2 adjusted profit and revenue helped by acquisitions in its specialty brands segment and improved performance in its specialty generic segment.

** ESTEE LAUDER COMPANIES INC, $87.65, +4.92 pct

The maker of Clinique, M.A.C. and Bobbi Brown cosmetics, reported a 1.2 percent rise in quarterly sales, helped by higher demand for its Pure Color Envy lipsticks and Perfectionist Youth-Infusing makeup.

** NETFLIX INC (Xetra: 552484 - news) , $570.14, +2.75 pct

BofA Merrill Lynch analysts raised video streaming company's stock to "buy" from "neutral", according to Theflyonthewall.com. (Compiled by Rohit T.K. in Bengaluru; Edited by Don Sebastian)