Big Movers: Most Rising and Falling stocks on Wall Street

Wall Street started new week on a negative note today after major benchmarks logged their best weekly gains in more than a year.

In corporate news, ITT Educational Services, Inc. (NYSE:ESI) plunged more than 20% to suffer new low after cautious comments about the company’s liquidity position.

Illumina, Inc. (NASDAQ:ILMN) was down 8%, at last check, after  Roche Holding AG Chairman Franz Humer said the company holds no plan to acquire the gene sequencing specialist.

MAKO Surgical Corp. (NASDAQ:MAKO) tumbled to new low after providing update on fourth-quarter, fiscal year 2012 revenue and procedure.

Tesoro Corporation (NYSE:TSO) lost 4% after expanding a credit line to allow for almost $4 billion in borrowings.

Cree, Inc. (NASDAQ:CREE) plunged after Canaccord Genuity downgraded the stock a hold rating.

LDK Solar Co., Ltd (ADR) (NYSE:LDK) was trimming early losses after news hit the market that the company has escaped delisting on NYSE.

Baidu.com, Inc. (ADR) (NASDAQ:BIDU) declined sharply after Barclays downgraded the stock to “equal weight” from “overweight,” and reduced its price target to $113 from $137.

QEP Resources Inc (NYSE:QEP) dropped after the company continued looking at options for Midstream Assets.

Valero Energy Corporation (NYSE:VLO) moved down after Howard Weil lowered the stock to Market Perform.

Yahoo! Inc. (NASDAQ:YHOO) was active but down today after analysts at Bernstein downgraded the stock to “market perform” from “outperform”.

Some other decliners included Green Mountain Coffee Roasters Inc. (NASDAQ:GMCR), Applied Materials, Inc. (NASDAQ:AMAT), MetroPCS Communications Inc (NYSE:PCS), Harmony Gold Mining Co. (ADR) (NYSE:HMY) and Archer Daniels Midland Company (NYSE:ADM).

On the upside, Peregrine Pharmaceuticals (NASDAQ:PPHM) was leading top gainers today with over 50% advance after results of the broad internal review suggested that differences are isolated to the placebo and 1 mg/kg treatment arms of the trial and that no evidence of discrepancies in the 3 mg/kg treatment arm of the trial was found. In other words, the results support advancement to Phase III.

CombiMatrix Corporation (NASDAQ:CBMX) added more than 20% after the genetic testing company posted yearly growth in some of its prenatal testing volumes.

Epocrates, Inc. (NASDAQ:EPOC) rallied after Former United States Securities and Exchange Commission attorney Willie Briscoe and the securities litigation firm of Powers Taylor, LLP launched investigation over the proposed sale of Epocrates, Inc. to athenahealth, Inc. on behalf of shareholders.

Nationstar Mortgage Holdings Inc (NYSE:NSM) touched new high on a $215 Billion mortgage deal with BofA.

SolarCity Corp (NASDAQ:SCTY) skyrocketed after Needham & Company initiated coverage on the stock with a buy rating and set PT of $17.

Walgreen Company (NYSE:WAG) is actively rising today as investors await clues on the company’s health.

Some other noteworthy gainers include Inovio Pharmaceuticals, Inc. (NYSEAMEX:INO), EnergySolutions, Inc. (NYSE:ES), Newcastle Investment Corp. (NYSE:NCT), Netflix, Inc. (NASDAQ:NFLX) and Renren Inc (NYSE:RENN).