In the wake of Friday's drastic pullback in the stock market, it looks like at least one trader is banking on more short-term volatility. Bright and early Monday, a spread speculator constructed a long straddle on the PowerShares QQQ Trust (QQQQ), with the trader hoping to capitalize on a substantial price swing over the next several weeks.

Specifically, the trader purchased a block of 1,205 February 56 calls, and simultaneously bought a matching block of 1,205 February 56 puts. QQQQ was hovering right at $55.69 at the time of these transactions, placing both strikes very near the money.

Option volume has ramped up on Regions Financial (RF) today, with 14,000 contracts changing hands by midday -- more than double the equity's average daily volume. Calls are dominating most of the action, as no fewer than 12,000 of these bullishly oriented options have been exchanged.

Traders appear to be adding new positions at RF's out-of-the-money November 8 and December 8 call strikes, continuing a recent trend in the options pits. During the past 10 days, the International Securities Exchange (ISE) reports that options players have bought to open 9.12 calls for every put on RF. This ratio arrives in the 94th percentile of its annual range, not far from an optimistic peak.

American Axle & Manufacturing Holdings (AXL) is prepping for its turn in the earnings spotlight. The auto parts issue is slated to confess its second-quarter results ahead of Friday's opening bell, and at least one speculator is looking for a major post-event move from the shares. Bright and early Thursday morning, an ambivalent options trader opened an at-the-money straddle on AXL.

Specifically, the trader simultaneously purchased several matching blocks of August 9 puts and calls. With AXL trading just pennies above $9, both of these options are at the money. By scooping up equal numbers of puts and calls at the same strike, the trader is hoping to capitalize on a drastic move higher or lower from the security.

Is General Electric (GE) on the verge of a major price swing? At least one options player seems to think so. Last Friday, the blue-chip conglomerate was singled out for a long-term straddle, with the trader zeroing in on GE's December series.

Specifically, the speculator simultaneously purchased 5,000 December 20 puts for $2.41 each, and purchased 5,000 December 20 calls for $1.20 a pop. Open interest at both strikes surged by well over 5,000 contracts over the weekend, confirming that this was a freshly opened long straddle. The position was initiated for a net debit of $3.61 per pair of contracts.

With earnings now out of the way for Abercrombie & Fitch (ANF), option traders are looking for the stock to stay in a short-term range (at least for the next few weeks).

Shortly after today's opening bell, a trader simultaneously sold 6,000 each of the March 35 puts and March 35 calls, creating a short straddle. A straddle seller is essentially expecting limited volatility in the underlying stock over the option's lifespan. The closer ANF finishes to the straddle strike (35) at expiration, the better it is for the seller. In fact, for the seller to retain the entire credit collected today, ANF would have to close right at 35 on March expiration in about four weeks.

It's a slow day in the options market, and investors are expecting a slow couple of months in terms of Dell (DELL) price action - and they are taking on a lot of risk to bet on this.

The January 14 straddle has been active today. (A straddle is the simultaneous purchase or sale of a call and put with the same expiration date and same strike price). In this case, the straddle was sold 8,000 times for $1.47 (an average of 55 cents for the out-of-the-money put and an average price of 92 cents for the in-the-money call). The volume crossed the tape around 11:00 AM Eastern time in two large blocks of 4,000 straddles.

Hartford Financial Services (NYSE: HIG) is scheduled to step into the earnings spotlight right after Tuesday's closing bell, with the insurance issue releasing its final third-quarter figures. Analysts are expecting Hartford to report a profit of $1.11 per share, according to Thomson Reuters, representing a dramatic reversal from its year-ago loss of $1.40 per share.

Hartford has a mixed history on the earnings front, with the company exceeding consensus expectations in two of the previous four reporting periods -- and falling short of Wall Street's predictions during the other two quarters. On the plus side, sector peer Lincoln National (NYSE: LNC) recently released a stronger-than-expected third-quarter report, which could bode well for Hartford.

After the opening bell, Nike (NYSE: NKE) will be reporting first-quarter earnings results. Analysts are looking for per-share results of 97 cents and revenue of $4.9 billion. Check out Michael Fowlkes' earnings preview for a complete look at this report.

On Monday, option players waved a bullish flag ahead of Nike's results, trading nearly 6,000 contracts at the October 65 strike. With the stock trading at $59.22, this front-month option (expiring in about two-and-a-half weeks) is out-of-the-money by nearly 10%. Open interest expanded from 2,696 to 7,116, meaning that most of these traded to open. The majority were in fact bought to open, trading for about 35 cents apiece.

Discover Financial Services (NYSE: DFS) is preparing for its upcoming turn in the earnings spotlight. The firm is scheduled to unveil its fiscal third-quarter results before the market opens Thursday, Sept. 17.

Ahead of the event, analysts surveyed by Thomson Reuters are expecting Discover to swallow a loss of about 12 cents per share, down sharply from its year-ago profit of 37 cents per share. Sales for the period are expected to arrive at $743 million.

Athens-based shipping issue DryShips Inc. (NASDAQ: DRYS) announced Monday that it will release its fourth-quarter and fiscal 2008 earnings results after the close of trading in New York today, March 24. Ahead of the report, buy-to-open call volume has been consistently heavy on the beaten-down stock.

During the past five days, traders on the International Securities Exchange (ISE) have bought to open 30,875 calls on DRYS, compared to jut 9,697 puts. In other words, bullish bets have been three times more popular than their bearish counterparts.

When Potash Corp. of Saskatchewan (NYSE: POT) fell from its June 2008 peak of $241.62, it fell hard. The stock bottomed out at $47.54 in early December, marking an 80.3% decline from peak to nadir. The shares have recently shown signs of life, though, having gained 78.7% during the past two months.

Even more compelling, POT closed last Friday atop resistance from its 20-week moving average for the first time since August, and appears poised to do so again this week. So, with the stock rallying back from its lows, why are investors gravitating toward bearish bets?

Google (NASDAQ: GOOG) closed at $471.10 Friday.

GOOG is expected to report Q1 EPS on April 17.

Cowen says: "ad budgets in search will remain robust because advertisers have historically favored high ROI channels that drive revenue – like direct mail – during recessions."

GOOG April 470 straddle is at $35, May 470 straddle is at $55 according to Track Data, suggesting large price movement.

Option Update is provided by Stock Specialist Paul Foster of theflyonthewall.com

Intuitive Surgical Inc. (NASDAQ: ISRG) develops, manufactures and markets robotic technologies designed to improve patient returns.

• ISRG is expected to report EPS on 10/18.
• Oppenheimer says: "We believe any competition ISRG faces is at least 7-10 years away. We believe the recent sell-off offers an opportunity. We continue to rate shares Buy and reiterate our $270 price target."
• ISRG October 250 straddle is priced at $30.90. ISRG overall option implied volatility of 80 is above its 26-week average of 48 according to Track Data, suggesting larger price risk.

Yahoo! Inc. (NASDAQ: YHOO) is expected to report EPS of 8 cents 10/16 according to Thomson First Call.

• Alex Brown has a Hold rating and a $24 price target on YHOO.
• Alex Brown says: "We expect YHOO to report 3Q results in-line to slightly below expectations, as US traffic declines of 9% and search volume slowdown may pressure growth."
• YHOO October 27.5 straddle is priced at $2.71. YHOO November option implied volatility of 51 is above its 26-week average of 36 according to Track Data, suggesting larger risk.

Daily options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com.

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The Bear Stearns Companies Inc. (NYSE: BSC)'s option prices decrease after the Federal Open Market Committee lowers rates; BSC earnings per share (EPS) come out on September 20:

BSC is expected to report 3Q EPS of $1.78 on September 20, according to Thomson First Call. BSC was recently up $3.22 to $118.47. The FOMC lowered the Fed Funds rate by .50 to 4.75%. BSC September 120 straddle was priced at $7.30. BSC October option implied volatility of 49 was below a level 58 from two hours ago and below its 7-week average of 57 according to Track Data, suggesting decreasing price risk.

Morgan Stanley (NYSE: MS) volatility decreases after FOMC Lowers rates:

MS EPS comes out on September 19. MS is expected to report 3Q EPS of $1.53, according to Thomson First Call. MS was recently up $3.68 to $68.58. The FOMC lowered the Fed Funds rate by .50 to 4.75%. MS September 70 straddle was priced at $3.05. MS October option implied volatility of 35 was below a level of 38 from two hours ago and near its 7-week average of 38 according to Track Data, suggesting decreasing risk.

The Goldman Sachs Group, Inc. (NYSE: GS)'s option prices decrease after FOMC lowers rates:

GS EPS comes out September 20. GS is expected to report 3Q EPS of $4.35, according to Thomson First Call. GS was recently up $11.75 to $199.35. The FOMC lowered the Fed Funds rate by .50 to 4.75%. GS September 200 straddle was priced at $8.40. GS October option implied volatility of 33 was below a level of 39 from two hours ago and below its 26-week average of 35 according to Track Data, suggesting larger risk.

Daily options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com.

Nike (NYSE: NKE) option prices up into 9/20 EPS & Outlook. NKE will report EPS on 9/20. Thomson First Call estimates 1Q EPS of $0.87 cents. TWPT has a 12-month price target of $62.92 and say's "expect healthy growth in futures orders." NKE September 55 straddle is priced at $3.60. NKE October option implied volatility of 28 is above its 26-week average of 25 according to Track Data, suggesting larger price fluctuations.

CarMax (NYSE: KMX) option prices Elevated into 9/19 EPS & Guidance. KMX is expected to report 2Q EPS of $0.29 cents 9/19 according to Thomson First Call. Goldman Sachs say's "the stock still screens as inexpensive relative to historical levels, and we continue to believe lingering credit concerns may be overdone." KMX September 25 straddle is priced at $2.35. KMX October option implied volatility of 57 is above its 26-week average of 35 according to Track Data, suggesting larger risk.

Daily options Update is provided by Stock Specialist Paul Foster of theflyonthewall.com.