Unusual 11 Mid-Day Movers 06/19: (MBIS) (MNOV) (AVHI) Higher; (OSH) (VNDA) (ZN) Lower

Mediabistro (Nasdaq: MBIS) 110.2% HIGHER; no direct news on the name amid the surge higher. The company used to be known as WebMediaBrands.

Orchard Supply Hardware Stores (Nasdaq: OSH) 64.2% LOWER; management has noticed high trading volume in Orchardâs Class A Common Stock and Series A Preferred Stock following its filing of Chapter 11 with the U.S. Bankruptcy Court on June 17, 2013. Stockholders of a company in Chapter 11 generally receive value only if all claims of the company's secured and unsecured creditors are fully satisfied. In this case, Orchardâs management strongly believes that it is highly unlikely all such claims will be fully satisfied. Accordingly, it is expected that the Companyâs equity holders will experience a complete loss of their investment as a result of Orchardâs Chapter 11 bankruptcy proceedings, as previously disclosed in the Companyâs Form 8-K filed on June 17, 2013 and in its Form 10-K/A for the fiscal year ended February 2, 2013.

MediciNova, Inc. (Nasdaq: MNOV) 26.9% HIGHER; announced the presentation of preliminary results from a Phase 1b study of MN-166 (ibudilast) in methamphetamine addiction at the 75th Annual Meeting of the College on Problems of Drug Dependence (CPDD) in San Diego on June 18, 2013. Click here for more from the release.

Vanda Pharmaceuticals Inc. (Vanda) (Nasdaq: VNDA) 23.3% LOWER; presented additional data today at ENDO 2013, the Endocrine Society's 95th Annual Meeting, demonstrating that tasimelteon can entrain (synchronize) both melatonin and cortisol rhythms.

Zion Oil & Gas, Inc. (Nasdaq: ZN) 19.6% LOWER; traders taking a little profit today following a move over 25 percent higher on Tuesday.

AV Homes, Inc. (Nasdaq: AVHI) 18.1% HIGHER; announced that TPG, a leading global private investment firm, has agreed to make a $135 million investment in the Company at a price of $14.65 per share, which represents a 9.6% premium to the 30-day trailing average closing price of AV Homes' common stock.

American Realty Investors Inc. (NYSE: ARL) 16.6% HIGHER; higher as shares moved above the $5 level on Monday and $6 level today. Short interest on the name increased 54.2 percent since the middle of May, though its still thin at 0.9 percent of float.

Tetra Tech, Inc. (Nasdaq: TTEK) 13.2% LOWER; announced an update of its third quarter 2013 outlook to reflect increased restructuring costs resulting from the previously announced weakness in Eastern Canada and mining, and new findings on certain project claims. For more color on the guidance, click here.

MFRI Inc. (Nasdaq: MFRI) 12.4% HIGHER; reported receipt of $55 million in new global orders, of which $25 million was reported in the first quarter backlog, since last February.

Vitesse Semiconductor Corporation (Nasdaq: VTSS) 12.0% LOWER; announced that it is offering to sell shares of its common stock in an underwritten public offering in an amount of approximately $30 million (not including any exercise of a 15% over-allotment option to be granted to the underwriters)

Nektar Therapeutics (Nasdaq: NKTR) 9.5% HIGHER; announced positive top-line results from a human abuse liability (HAL) study for NKTR-181, a first-in-class, opioid analgesic molecule with a slow rate of entry into the brain. This slow rate of entry is designed to reduce the euphoria that can lead to the abuse of and addiction to current opioid analgesics. In the study data being presented today, NKTR-181 was rated similar to placebo in "drug liking" and "feeling high" scores and had highly statistically significant lower "drug liking" scores and reduced "feeling high" scores as compared to oxycodone at all doses tested (p0.0001). br / To get this report daily visit http://www.streetinsider.com/entities/Unusual+11+Mid-Day+Movers.

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