General Mills (GIS) is buying a 50% stake in Yoplait from PAI Partners for roughly $1.1 billion, Reuters reported Thursday, citing sources close to the deal.

The deal is a nice fit for both companies. Yoplait is second to Danone (DANOY) in the yogurt market. General Mills has the industry presence to promote the Yoplait brand, something that would benefit PAI.

For General Mills, Yoplait would add an another revenue stream to an already diversified conglomerate. Some of General Mills' products include cereals, Haagen-Dazs ice cream, Green Giant vegetables and Progresso soup. The company has already been distributing Yoplait for 30 years, so the distribution network is already in place.

The market for single cup roasters is estimated at $4 billion, according to Reuters. Single cup coffee roasters are growing in popularity, especially in business offices and waiting rooms. Naturally, coffee roasters like Green Mountain Coffee (GMCR) and Starbucks (SBUX) want a piece of the action.

The single cup roasters provide several advantages to having coffee in larger coffee pots. For one thing, coffee which sits for hours in a pot loses some of its fresh flavor or becomes bitter. Enter the single cup roaster. You simply pop a small container of coffee in the machine, and viola, you get a single cup of coffee with little or no mess, and always fresh.

When it comes to hard-disk drives, Western Digital (WDC) is the largest publicly traded operator in the U.S. And with its recent deal, it will get much larger. That is, the company has agreed to pay $4.3 billion for the data storage business of Hitachi.

Based on the stock move for Western Digital, investors love the transaction. In early Monday trading, the shares were up a sizzling 17.33% to $35.21.

Dresser-Rand (DRC - option chain) shares are rising today after the company announced it has agreed to acquire diesel and gas engine supplier Grupo Guascor SL in a $690 million cash-and-stock deal. If you think that the stock won't fall by too much in the coming months, then now could be a good time to look at a bullish hedged trade on DRC.

Ventas (VTR), which operates senior housing facilities, has been ramping up its dealmaking. For example, back in October, the company purchased Atria Senior Living Group for $1.5 billion.

Now, Ventas is making another big deal: the $5.8 billion purchase of Nationwide Health Properties (NHP). The company will issue 0.7866 of a share for each share in Nationwide. The upshot will be that Ventas will own about 65% of the new entity. The deal is expected to close in the third quarter.

When will the real estate market make a comeback? Well, it seems that the Blackstone Group (BX) thinks it is already happening. The firm has won a bid for 588 U.S. shopping malls. The price tag? A cool $9.4 billion. In fact, the auction was heated, involving other top real estate investors like Starwood Capital.

The seller is Centro, which is based in Australia. The company has been trying to pare down its debt load since the financial crisis hit in 2008. After the sale of the assets, Centro will be left with 112 malls.

While the U.S. exchanges have a diverse market for mining and resource stocks, the fact is that there are large opportunities in foreign markets. In fact, the London Stock Exchange (LSE) and the Canadian TMX Group have agreed to merge, which would create an enormous market for commodities listings.

It is an all-stock deal, with the LSE holders getting roughly 55% of the equity. The exchange's CEO, Xavier Rolet, will also lead the new organization.

For Warren Buffett, it wasn't a big deal. Monday, his company, Berkshire Hathaway (BRK.A), agreed to purchase the 19.9% of Wesco Financial Corp. (WSC) it did not already own for $548 million. The stock price was only up 1.33% in early trading. Then again, there was no surprise that this transaction would happen -- and that it would be at roughly the net value of Wesco.

Yet the deal certainly has significance. After all, Wesco has been a part of the Buffett empire for decades, and the chief of the company is Charlie Munger, who is the vice chairman of Berkshire. However, he is 87 years old and yes, he is actually thinking about the process of succession. To do this, there will need to be some reshuffling of assets.

Betting on the outcome of a buyout is no easy feat. Will there be a heated auction? Or will the bidders have doubts and want price concessions?

The result is often much volatility. Just look at Beckman Coulter (BEC), a top medical diagnostic instruments company. In early December, the company put itself up for sale and the stock price surged to $72. Since then, the shares have traded in band of $71 to $75.