(For faster updates on individual market-movers, Eikon users please use search string "STXBZ US"; for the Day Ahead newsletter, link.reuters.com/mex49s; for the Morning News Call newsletter, link.reuters.com/nex49s) U.S. stock indexes opened lower on Tuesday after two sessions of gains as trade deficit rose in March, pointing to a contraction in economic growth in the first quarter. The Dow Jones industrial average was down 0.71 percent at 17,941.61 and the S&P 500 was down 1.02 percent at 2,093.
** PLASMATECH BIOPHARMACEUTICALS INC, $6.99, +144.41 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, $38.2, -30.65 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.
** NAUTILUS INC, $20.15, +17.08 pct
Shares of the fitness products company rise as much as 22 pct to a more than nine-year high of $20.95; stock among top percentage gainers on New York Stock Exchange.
At least five brokerages raised price targets to as much as $24 after company reported better-than-expected first quarter profit and revenue on Monday.
** PTC THERAPEUTICS INC, $54.25, -10.83 pct
The drug developer temporarily suspends patient dosing in a mid-stage study of its muscle disorder drug, as a precautionary measure to counter a potential safety problem stemming from a pre-clinical study.
** CLIFFS NATURAL RESOURCES INC, $6.46, +10.24 pct
Quebec government says it is prepared to buy assets servicing Cliffs' iron-ore mine, according to Bloomberg.
** KENNAMETAL INC, $38.24, +5.81 pct
Mining equipment maker reported better-than-expected third-quarter profit and announces additional restructuring initiatives.
** XG TECHNOLOGY INC, $0.3848, -28.61 pct
Radio technology developer files for secondary offering of up to 10 million units. One unit consists of one common share and one warrant, the company said.
** NATIONSTAR MORTGAGE HOLDINGS INC, $19.41, -25.83 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, $44.9, +19.29 pct
The Norwegian shipping company signed a 20-year contract for a LNG vessel with Ophir Energy Plc. The contract will start in the first half of 2019.
** ACELRX PHARMACEUTICALS INC, $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, $4.66, -22.20 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, $13.99, -10.21 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, $5.09, +8.99 pct
Network equipment maker reports better-than-expected first quarter revenue, helped by higher sales to enterprise customers.
** WESTPORT INNOVATIONS INC, $6.96, +10.65 pct
Canadian natural gas engine technology maker says its WiNG Power System is to be used in Ford Motor Co's F-150 trucks.
** EARTHLINK HOLDINGS CORP, $5.43, +11.96 pct
Network services provider reported better-than-expected first quarter revenue, helped by higher sales in its consumer services business.
** STURM RUGER & CO, $56.38, -3.72 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, $8.7, -4.92 pct
Morgan Stanley 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, $17.05, -14.84 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 says.
** MARTHA STEWART LIVING OMNIMEDIA INC, $5.45, -6.84 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, $9.45, -8.43 pct
The independent provider of online forex trading reported a lower-than-expected first quarter profit, mainly due to higher expenses.
** NEOSTEM INC, $2.44, -13.48 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, $19.89, +15.57 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, $25.765, +16.32 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, $6.082, +8.71 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, $5.28, +7.32 pct
The oilfield services provider reported a better-than-expected first-quarter revenue and smaller-than-expected quarterly loss.
** DIAMOND OFFSHORE DRILLING INC, $35.11, +6.07 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, $10.68, +6.59 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, $21.38, +5.01 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, $75.25, +15.52 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, $25.159, -10.18 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, $9.06, +7.35 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, $121.35, +5.52 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, +4.14 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, $566.7025, +2.13 pct
BofA Merrill Lynch analysts raised video streaming company's stock to "buy" from "neutral". (Compiled by Rohit T.K. in Bengaluru; Edited by Don Sebastian)