Option volume has ramped up today on KeyCorp (KEY), with activity rising well beyond the usual level on both the call and put side of the tape. Taking a closer look at some of the major block trades on this regional banking issue, it appears that a single spread strategist is responsible for a healthy portion of this option volume.

Specifically, the trader purchased a block of 10,000 June 10 calls for $0.50 each, and simultaneously sold 10,000 June 8 puts for $0.25 each. The result was a net debit of $0.25 per pair of contracts -- which means the speculator can begin collecting profits on those purchased calls if KEY rallies beyond $10.25 by June expiration.

Natural gas giant Chesapeake Energy (CHK) has been in the headlines lately, with the stock attracting attention due to a substantial asset sale earlier this week. Plus, just Friday morning, CHK scored an upgrade to buy at Canaccord Genuity. The shares have gained ground as a result, with the equity up more than 13% from last Friday's close. However, bearish bets were the options of choice on CHK this morning.

Within the first hour of Friday's session, more than 5,000 puts were exchanged on CHK's January 2012 35-strike put. The majority of these puts traded near the ask price, indicating they were most likely purchased. With CHK hovering just shy of $35 at last look, these long-term options are right at the money.

Online marketing specialist ValueClick (VCLK) is scheduled to unveil its fourth-quarter earnings after Tuesday's closing bell. Ahead of the announcement, analysts surveyed by Thomson Reuters are anticipating a profit of 23 cents per share, on average, which would represent an improvement over ValueClick's year-ago earnings of 18 cents per share.

ValueClick has a strong history in the earnings spotlight, having surpassed analysts' bottom-line expectations in each of the past four quarters. However, a quick scan of the stock's sentiment backdrop reveals a nearly palpable pessimism among both traders and analysts.

A parade of retailers reported their January same-store sales figures on Thursday morning, and the results were actually much better than expected. The aggregate 4.2% rise in monthly sales easily surpassed analysts' expectations, leading to a solidly bullish session for the SPDR S&P Retail (XRT) exchange-traded fund (ETF).

However, not everyone was won over by January's stronger-than-forecast sales data. Around midday on Thursday, one skeptical options trader initiated a long put spread on the XRT, in an attempt to capitalize on expected weakness in the retail-based fund.

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.

Juniper Networks (JNPR) is on the upswing, with the stock catching a 6% boost Wednesday morning on the heels of a well-received fourth-quarter earnings report. Juniper reported a quarterly profit of $190.2 million, or 35 cents per share, substantially improved from its year-ago results of $22.9 million, or 4 cents per share. Excluding items, earnings improved to 42 cents from 32 cents per share on a year-over-year basis.

Meanwhile, revenue for the quarter increased 26% to $1.19 billion. Gross margin retreated slightly, falling to 66.6% from 67.1%.

Friday morning, the good folks at JPMorgan Chase (JPM) kicked off a wave of quarterly reports from the banking sector. Next week, we'll hear the latest earnings results from the likes of Citigroup (C), Goldman Sachs (GS), and Wells Fargo (WFC), just to name a few.

Of course, the biggest bank in the nation -- Bank of America (BAC) -- also has a quarterly report on deck. Ahead of next Friday's fourth-quarter release, one speculator opted to construct a high-volatility options strategy on BAC.

KB Home (KBH) is ending the week on a high note, after the homebuilder comfortably surpassed Wall Street's fiscal fourth-quarter earnings expectations. Bright and early Friday morning, KBH announced quarterly net income of $17.4 million, or 23 cents per share, on revenue of $451 million. Adjusted housing gross margins improved to 19.7% from 19%.

This marks KBH's first quarterly profit, without the aid of tax gains, in almost four years. Analysts were anticipating KBH to swallow a deficit of 17 cents per share on revenue of $441.3 million, so these results definitely qualify as a positive surprise.

Nasdaq OMX Group (NDAQ) is lingering near annual-high territory, but not everyone on Wall Street is impressed with the stock's price action. Bright and early Tuesday morning, the exchange operator was singled out for a bearishly biased options strategy.

Shortly after the opening bell, a block of 1,950 March 24 puts traded near the ask price at $1.20, indicating they were most likely purchased. At the same time, a block of 3,900 March 21 puts changed hands near the bid price at $0.30, suggesting they were probably sold. Volume is easily outstripping open interest at both strikes, so it's safe to assume that we're seeing the initiation of a new spread position.

Options players rushed to place their bets on The Gap (GPS) Tuesday, with volume rising to five times the norm within the first hour of trading. Taking a closer look at the major block trades, it looks as though one speculator is anticipating a major price swing from GPS during the next year.

Specifically, the trader opened a long strangle on GPS by purchasing 2,619 January 2012 20-strike calls, and simultaneously buying 2,619 January 2012 17.50 puts. This two-legged option strategy allows the trader to benefit from a drastic move in the underlying equity, regardless of whether the shares move higher or lower.

Thursday morning, GPS specialist Garmin Ltd. (GRMN) said it lost a patent dispute with Japanese firm Pioneer Corp. The District Court of Dusseldorf in Germany found that two patents owned by Pioneer were infringed by a certain functionality in Garmin's software.

However, Garmin says it has already worked out "minor software revisions that eliminate the narrow functionality at issue in the litigation." As a result, the company doesn't expect any significant impact on its ability to import and sell its navigational products.

Shares of Netflix (NFLX) started Tuesday on a high note, with the shares gaining more than 1% out of the gate. Traders appear to be responding to new comments from Jim Cramer, after the host of CNBC's Mad Money offered an upbeat opinion on the stock Monday.

Specifically, Cramer is enthusiastic about Netflix's push into streaming content, and he has high expectations for future subscriber growth. The analyst also argued that the stock's valuation is actually quite reasonable, when measured against the company's long-term growth rate. For traders looking to take part in continued gains by NFLX, Cramer suggested in-the-money call options.

Lennar Corp. (LEN) just can't seem to win much respect on Wall Street. Despite well-known fundamental issues within the housing sector, LEN has tallied a year-to-date advance of roughly 35% -- easily topping the 11.4% gain collected by the S&P 500 Index (SPX).

Wall Street seems less than impressed by this technical outperformance, though. Earlier today, S&P Equity downgraded the stock to hold from strong buy, joining six other analysts who maintain a tepid rating on the shares.

American Superconductor (AMSC) gapped lower right out of the gate this morning, thanks to a bearish write-up in Barron's (subscription required) over the weekend. In a piece titled "Flagging Winds from China," author Bill Alpert warns of "signs that China's boom in wind power is slowing." As points of concern, Alpert points to dropping prices and rising inventories in the wind-turbine industry.

AMSC tumbled to a loss of more than 6% Monday morning, deepening its year-to-date decline of 18%. The stock has suffered four consecutive Friday closes beneath its 10-week moving average, and AMSC is now trading below its 20-week moving average, as well. Going forward, these formerly supportive trendlines could switch roles to act as resistance.

You're probably already aware that General Motors (GM) has reclaimed a spot on the New York Stock Exchange (NYSE), with the Detroit icon making its Big Board debut on Nov. 18. As of today, options are now available to trade on the bailed-out automaker, and speculators are already rushing to place their bets on GM.