Top Active Trader Alerts, Major Stocks on the Move (BWLD, FB, IRBT, INVN, NFLX, PNRA, RFMD, SIRI, SCMR, TPX, UTHR, ZNGA)

We have many stocks on the move this morning. The following are the stocks to watch for active traders this Wednesday: Buffalo Wild Wings Inc. (NASDAQ: BWLD); Facebook Inc. (NASDAQ: FB); iRobot Corp. (NASDAQ: IRBT); InvenSense Inc. (NYSE: INVN); Netflix Inc. (NASDAQ: NFLX); Panera Bread Co. (NASDAQ: PNRA); RF Micro Devices Inc. (NASDAQ: RFMD); SIRIUS XM Radio Inc. (NASDAQ: SIRI); Sycamore Networks Inc. (NASDAQ: SCMR); Tempur-Pedic International Inc. (NYSE: TPX

); United Therapeutics Corp. (NASDAQ: UTHR); and Zynga Inc. (NASDAQ: ZNGA). We have shown the moves and given a brief summary on each.

Buffalo Wild Wings Inc. (NASDAQ: BWLD) is going to be down handily and shares are indicated under $75 after closing at $83.46 on Tuesday. Profits failed to meet estimates. Store growth looked slower as well. The prior 52-week range is $58.08 to $94.81.

Facebook Inc. (NASDAQ: FB) has soared after earnings, and we have even seen two analyst upgrades from Citi and Bank of America; shares are up 20% at $23.55 and trading volume is very active.

iRobot Corp. (NASDAQ: IRBT) is way down and trading even worse than last night, with shares under $20.00 against a 52-week range of $19.09 to $38.33. While it grew, it said with earnings that the 2012 outlook for D&S has deteriorated and it expect further declines in 2013. Volume is light but shares are around $19 after closing at $22.64.

InvenSense Inc. (NYSE: INVN) was up 1.6% yesterday. That was before its earnings report. The company said that Steven Nasiri will step down as CEO and chairman effective immediately. Shares are down almost 12% at $12.49, but shares were down as much as 18% at $10.20 last night, against a 52-week range of $8.25 to $22.35.

Netflix Inc. (NASDAQ: NFLX) was a total disappointment on the earnings and growth front. Shares are down a whopping $11.30, or 16.6%, at $56.90 in trading volume that does not feel as active as it would have a year ago or so.

Panera Bread Co. (NASDAQ: PNRA) bucked the bad news trend from restaurants. Along with a 27% gain in its profits, guidance was positive and ahead of estimates. Shares are up 5.4% at $169.00 in the after-hours session against a 52-week range of $114.58 to $175.26.

RF Micro Devices Inc. (NASDAQ: RFMD) rose yesterday, rose in the after-hours and also is up even more this morning. Revenue rose sequentially to $209.7 million and sees the current quarter at $245 million due to improvements. Shares are now up by almost 16% to $4.55 this morning, and its 52-week range is $3.45 to $7.89.

SIRIUS XM Radio Inc. (NASDAQ: SIRI) is down 2.4% at $2.80 after Mel Karmazin said he was resigning. Make no mistake: this was a John Malone push-out in that fight for control of the company.

Sycamore Networks Inc. (NASDAQ: SCMR) is selling a unit, looking to sell another line and then plans to close down the company and distribute its assets to shareholders in a special cash dividend. Adios! Shares are down more than 7% at $5.55 so far this morning.

Tempur-Pedic International Inc. (NYSE: TPX) has bed bugs if its earnings and guidance are any read. Shares were down 4.6% yesterday and the stock is down 18.6% at $25.95 so far this morning. Posting a quarterly loss and a weaker-than-expected forecast is crushing this stock all over again. Keep in mind that the 52-week range is $20.70 to $87.43.

United Therapeutics Corp. (NASDAQ: UTHR) is trading down 12%, or almost by $6.50, to $46.79 in active trading. The company received a complete response letter for its Oral Treprostinil new drug application, which means that the FDA did not approve its application.

Zynga Inc. (NASDAQ: ZNGA) shares are up 5% at $2.32 with a strong Facebook. After the layoff news yesterday, it was hard to not notice that Zynga is a dog, but still a dog that trades close to its book value now.

JON C. OGG