Top Active Trader Alerts (ALGN, AMZN, ARST, BIDU, LIVE, ERIC, NFLX, RVBD, SNDK, VPHM)

Active traders have several big moves this morning that are on the trading radar screens.  We are tracking key moves in shares of Align Technology, Inc. (NASDAQ: ALGN), Amazon.com, Inc. (NASDAQ: AMZN), ArcSight, Inc. (NASDAQ: ARST), Baidu, Inc. (NASDAQ: BIDU), LiveDeal, Inc. (NASDAQ: LIVE), LM Ericsson Telephone Co. (NASDAQ: ERIC), Netflix, Inc. (NASDAQ: NFLX), Riverbed Technology, Inc. (NASDAQ: RVBD), SanDisk Corporation (NASDAQ: SNDK), and ViroPharma Incorporated (NASDAQ: VPHM).

Align Technology, Inc. (NASDAQ: ALGN) is getting clipped after earnings because of a disappointing guidance. The maker of Invisalign teeth systems is seeing shares trade down about 12% to $18.21 in light volume trading.

Amazon.com, Inc. (NASDAQ: AMZN) is trading down 1.6% at $162.35 in active trading. The drop is probably less than what many might have considered when the stock was down 4% in earlier indications. Margins remain under pressure at the company due to expansions, although earnings appear to have been ahead of estimates.

ArcSight, Inc. (NASDAQ: ARST) is halted this morning.  NASDAQ has this listed as “T12 CODE: Trading is halted pending receipt of additional information requested by NASDAQ.” Stay tuned.

Baidu, Inc. (NASDAQ: BIDU) is up after profits more than doubled and beat expectations.  Shares are up 4% more to $106.65 on very active trading and the 52-week range is $35.30 to $107.19.

LiveDeal, Inc. (NASDAQ: LIVE) is seeing shares up 10% at $15.44 this morning so far on very thin trading volume.  This stock usually trades 4,000 shares per day but the stock was up exponentially yesterday on over 200,000 shares as the move went from under $5 to over $22 with a close of $14.00.  Be advised, the bid/ask spread here is wide enough for a fleet of trucks to drive through.

LM Ericsson Telephone Co. (NASDAQ: ERIC)  managed to beat earnings expectations and shares are up 6.5% at $11.47 in active pre-market trading.  Share volume was active overseas already.

Netflix, Inc. (NASDAQ: NFLX) is trading down less than 1% this morning, but this is after yesterday’s large gain. On last look, shares were down about 0.8% around $171.40.

Riverbed Technology, Inc. (NASDAQ: RVBD) is soaring this morning after exceeding earnings targets.  Analysts are chasing the name up this morning and the stock’s last trade was up over 13% at $52.00 versus a prior 52-week trading range of $19.62 to $48.78.

SanDisk Corporation (NASDAQ: SNDK) is running after earnings held up better than many had feared.  The pure-play flash memory giant is seeing a gain of 6% to $39.36 on more than 200,000 shares this morning.

ViroPharma Incorporated (NASDAQ: VPHM) was halted after the FDA issued a complete response letter regarding Cinryze™ and has requested additional information.

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JON C. OGG