It is an oft-heard company lament: the stock price doesn't reflect our true value. And that was before the financial maelstrom of the past year, in which stocks have fallen more than 50% from the DJIA record of 14164.53 hit in October 2007.In the world of mergers and acquisitions, one result as been the rise of the eye-popping premium. The latest example (and biggest deal) is Sun Microsystems (JAVA), which is in talks to sell itself to International Business Machines (IBM). The price being discussed was believed to be roughly $6.5 billion, or about a 100% premium over the Tuesday closing price of $4.97. (The stock closed Thursday at $8.63, down 2.9% on the Nasdaq Stock Market).Abbott Lab's $1.36 billion acquisition of Advanced Medical Optics represented a 148% premium over Advanced Medical's stock price the day before the agreement was announced in January and a 286% premium over where the stock had been trading for prior 30 trading days, according to a list of big-premium deals compiled for Deal Journal by San Francisco investment bank JMP Securities using FactSet MergerStat data.Last month, radiology and medical imaging concern Amicas's $39 million offer for Emageon represented 142% premium for the supplier of information technology systems for hospitals, health-care networks, and imaging facilities. While Fieldpoint Petroleum's $25.5 million offer for Basic Earth Sciences Systems represented a 124% one-day premium, an offer Basic Earth rejected.'I think that pessimism has reigned supreme in the past 18 months, and all parties are guilty until proven innocent,' said Mark Lehmann, a managing director with JMP. 'Valuations are quite low for interesting companies. Right now, managements believe that if they manage their companies properly, their stocks are well undervalued, and they're not going to give it away. If they don't get the price they want, they will just keep running their business.'Acquirers, too, may be willing to pay a bit more in an acknowledgment that the companies they are pursuing really are worth much more than the stock market dictates, or at least that such premiums will dazzle the target's shareholders. 'An acquirer may see value well in excess of the market price and be willing to capture some of that value,' said Brian Hoffmann, a partner in the mergers and acquisitions department of law firm Clifford Chance.Hoffmann's firm represented International Petroleum Investment in its $6-a-share sale to Nova Chemicals, more than a five times IPIC's $1.34 stock price before the deal was announced.Of course, flashy premiums may be in the eye of the beholder. In nearly all cases, the offer prices were a discount to where the target's stock was trading a year ago. Sun Microsystems, for instance, hit its 52-week high of $16.72 on March 18, 2008, making the IBM approach a sizable discount.Heidi Moore