"As a conservative long-term oriented investor I tend to keep individual position sizes to no more than 5% of the overall portfolio; however in the case of Activision Blizzard (ATVI), I'm building a more concentrated position that I expect to pay off in the next two to three years," says Asif Suria.

In his The SINLetter advisory, he offers 10 reasons why he believes the stock is an attractive core long-term investment. He explains, "My goal is to eventually build this position until it represents 20% of my personal portfolio. Here are 10 reasons behind this decision.

1) Activision released the highly anticipated game Call of Duty: Modern Warefare 2 and racked up $310 million in sales from the United States and United Kingdom over a 24 hour period. With Christmas right around the corner, the final sales numbers for this edition of Call of Duty are going to be much bigger.

GameStop (GME) posted what I thought was a mediocre third quarter. Total sales went up about 8%, and earnings per share increased a few pennies to 31 cents. When you think video games, you think growth. That doesn't feel like growth, does it? Not the kind that sends a stock to the moon, certainly. Furthermore, same-store sales saw a decrease of 7.8%, driven by lackluster hardware transactions. Indeed, we may be hitting a point in the console cycle where the demand for systems from Sony (SNE), Microsoft (MSFT), and Nintendo (NTDOY) has essentially been satiated.

Here's the big question on the mind of traders: unimpressive Q3 or not, should GameStop be bought now?

While the big news today may be the release of Activision Blizzard's (ATVI) new Call of Duty title, there's other stuff going on in the world of video games for investors to ponder. Electronic Arts (ERTS) issued its Q2 report yesterday after the bell. The numbers weren't too bad, but the market was not excited at all by them, probably because it knows that EA still has a lot of work to do in terms of better positioning itself for the future.

Adjusted revenues were up a scant 2%. Earnings per share, excluding items, actually showed a profit of 6 cents. This was a lot better than the loss of 6 cents per share seen in the year-ago frame. The company also managed to generate a small amount of cash from operations in the quarter instead of using a whole bunch like it did last time around.

Today was one of those up days that started out strong and ended stronger. The gains were on the heels of overseas buying and on the dollar weakness. The dollar weakness trumped Hurricane Ida's downgrade to a tropical storm when it came to higher oil prices.

Here were today's unofficial closing bell levels:

Dow 10,227.40 +203.98 (2.04%)
S&P 500 1,093.10 +23.80 (2.23%)
Nasdaq 2,154.06 +41.62 (1.97%)

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Here are some highlights from last week's earnings coverage from BloggingStocks:

• Activision Blizzard Inc. (NASDAQ: ATVI) said its Q3 profit declined despite the popularity of Guitar Hero.
• Blackboard Inc. (NASDAQ: BBBB) said Q3 revenue surged and its offered impressive cash flow numbers.
• Boston Beer Co. Inc. (NYSE: SAM) easily beat Q3 earnings estimates and raised its full-year guidance.
• Cisco Systems Inc. (NASDAQ: CSCO) lower Q1 results topped estimates and sent shares higher.
• Cognizant Technology Solutions Inc. (NASDAQ: CTSH) was upgraded following its strong Q3 results.
• Corporate Executive Board (NASDAQ: EXBD) received an analyst's upgrade following the Q3 results.

Activision Blizzard (NASDAQ: ATVI) published third-quarter results on Thursday after the bell. I can't say I was wholly taken with them. I know the best is probably yet to come once the Christmas shopping season really gets under way, but I was a little disappointed that the company saw a decline in adjusted profit.

Excluding items, Activision Blizzard made 4 cents per share this quarter versus the 7 cents per share made in last year's similar period. Well, did I say I was a little disappointed? Make that a lot disappointed. After all, this is supposed to be the publisher with the best pipeline on the block, the one with the Guitar Hero franchise and a great portfolio of licensed intellectual properties.

Analyst upgrades:

• Sierra Wireless (NASDAQ: SWIR) was upgraded at Jefferies to Hold from Underperform following Q3 results. The firm believes the Wavecom acquisition integration is progressing better than expected and finds the valuation attractive at current levels. The firm raised its price target to $10 from $5.
• Boston Properties (NYSE: BXP) was upgraded to Buy from Hold at Deutsche Bank to reflect the company's recapitalization and better-than-expected occupancy. The firm raised its target to $69 from $46.
• Wyndham (NYSE: WYN) was upgraded to Outperform from Market Perform at FBR Capital after the shares sold off following the company's Q3 results. The firm raised its target to $23 from $15.
• Human Genome (NASDAQ: HGSI) was upgraded to Overweight from Neutral at JPMorgan. Target was raised to $25 from $14.
• Urban Outfitters (NASDAQ: URBN) was upgraded to Overweight from Market Weight at Thomas Weisel as they expect a "meaningful sales and earnings improvement in Q4." Target was raised to $39 from $32.
• Methanex (NASDAQ: MEOH) was upgraded to Buy from Neutral at UBS, citing improved methanol demand following the Q3 report. Target was raised to $19.50 from $17.
• Buffalo Wild Wings (NASDAQ: BWLD) was upgraded at Raymond to Market Perform from Underperform.

"The video game industry was once thought to be virtually recession proof; unfortunately, recession reality has intruded," notes Geoffrey Seiler, who adds, "Boosters, however, are pointing to new games scheduled for release later this year as a reason for optimism."

In his always-informative BullMarket.com, the advisors offers an in-depth review of the sector, highlights potential opportunities in GameStop (NYSE: GME), Electronic Arts (NASDAQ: ERTS), and Activision Blizzard (NASDAQ: ATVI).

"When you get right down to it, success in the video game business isn't much different from the movie business: developers are only as good as their last hit game.

Bright and early this morning, Goldman Sachs downgraded gaming guru Activision Blizzard (NASDAQ: ATVI) from Conviction Buy to Buy. In a note to clients, the brokerage firm explained that it sees greater relative potential for near-term price appreciation in other stocks. Goldman maintains a six-month price target of $16 on ATVI, implying expected upside of more than 29% from the shares' closing price on Wednesday.

ATVI is a ripe target for downgrades, if only because analysts are so lopsidedly optimistic toward the "Guitar Hero" parent. Zacks reports that the equity has attracted no fewer than 18 Strong Buy recommendations, plus two Buys -- with not a single Hold, Sell, or Strong Sell to be found.

September is drawing to a close. What does this signify? Well, one of my favorite times of the year, Halloween, will soon be upon us. Even more than that, holiday shopping is about to begin in earnest. Is your portfolio ready?

I've been checking around for investments in the retail sector. Problem is, so many of them have already had significant run-ups. However, even with these higher stock prices, the sector still might be an interesting one to look at since it's possible that Christmas could turn out okay. A post on DailyFinance discusses a report from the International Council of Shopping Centers, which basically states that numbers from this holiday season should see an improvement over last year's data.

Here are some highlights from last week's earnings coverage from BloggingStocks:

• Activision Blizzard Inc. (NASDAQ: ATVI) shares rose after it reaffirmed its full-year earnings and sales outlook.
• Automatic Data Processing Inc. (NASDAQ: ADP) will have low double-digit EPS growth, predicts one analyst.
• AutoZone Inc. (NYSE: AZO) posted a decline in earnings but a small rise in sales, sending shares lower.
• Bed Bath & Beyond Inc. (NASDAQ: BBBY) posted better-than-expected Q2 earnings and higher revenue.
• CarMax Inc. (NYSE: KMX) rallied to a new 52-week high after topping analysts' Q2 earnings expectations.
• Carnival Corp. (NYSE: CCL) reported better-than-expected Q3 results and raised its full-year guidance.

It's finally happened. Nintendo (OTC: NTDOY) has reduced the price of its Wii gaming console. What once was $250 is now $200 (or, technically, $199.99, the psychologically important way of designating the new cost).

Why did Nintendo do this? Because both Microsoft (NASDAQ: MSFT) and Sony (NYSE: SNE) have cut the costs of their own entertainment systems. Plus, we're simply at that point in the latest video-game cycle when cuts are implemented. Hardware eventually becomes less expensive. When demand levels fall off, more casual, value-oriented consumers are courted with cheaper prices.

Activision Blizzard (NASDAQ: ATVI) remains confident in its guidance for full-year earnings. According to StreetInsider.com, management is still looking for sales of $4.5 billion on the top line and adjusted earnings of 63 cents per share on the bottom line.

The publisher, which competes with Electronic Arts Inc. (NASDAQ: ERTS), should benefit from recent hardware price cuts made by Sony Corporation (NYSE: SNE) and Microsoft Corporation (NASDAQ: MSFT). With more units in the field, there most likely will be higher demand for Activision Blizzard's awesome pipeline, which includes Call of Duty.

According to GameSpot, execs at Viacom (NYSE: VIA) are pleased with the initial acceptance by consumers for its high-profile game The Beatles: Rock Band. The company said that expectations for the title, which is distributed by Electronic Arts (NASDAQ: ERTS), have been surpassed, and that a quarter of the inventory has already moved off retail shelves. Impressive.

Recently, I wrote an article about The Beatles game and how it might impact the Guitar Hero franchise from Activision Blizzard (NASDAQ: ATVI). I'm a shareholder of the latter, so I'm obviously biased on the subject. I want Rock Band's competitor to win the battle, no question.

The news for video games isn't improving, I'm sorry to say. My colleague Mark Fightmaster recently discussed the disappointing industry sales results observed in the month of August. As he pointed out, total revenues for the sector have now dropped six times in a row.

Oh, that doesn't feel nice at all. I own shares of Activision Blizzard (NASDAQ: ATVI), and I have to admit, the trend does send an icy chill down my spine. But I'll bet shareholders of Electronic Arts (NASDAQ: ERTS) feel even worse. August, of course, is a big month for them. The latest version of the Madden football franchise is released during the latter part of summer. Unfortunately, this year's game seems to have been a disappointment in terms of units sold.