Even though Facebook (NASDAQ:FB) shares are off 22% from their open last Friday, it looks like short sellers still see more potential on the downside.

Short selling involves the process of borrowing shares and selling them immediately — with the hope of buying them back at a lower price in the future to make a profit.

According to Data Explorers, about 8% of Facebook’s float is in short positions, but it still is early, and it looks like the amount will expand during the next few weeks. Read 

A while back, I wrote about some of the worst IPOs in history, which included names like Refco, BATS and my favorite, Wilt Chamberlain’s Restaurants. But who would have thought just a couple months later that Facebook (NASDAQ:FB) would end up being a good candidate for the list, too?

While Facebook and Morgan Stanley (NYSE:MS) have caught heat, some of the blame goes to the botched execution from Nasdaq OMX Group (NASDAQ:NDAQ). And now there’s buzz about Facebook possibly de-listing and heading to the NYSE Euronext (NYSE:NYX).

During the past couple decades, the Nasdaq has been the epicenter of many of history’s great breakout companies. While many of the examples include tech giants like Apple (NASDAQ:AAPL), Google (NASDAQ:GOOG) and Microsoft (NASDAQ:MSFT), the index also is host to other great non-tech businesses, such as Starbucks (NASDAQ:SBUX) and Whole Foods (NASDAQ:WFM). Read 

Many investors have lost a tidy sum on the Facebook (NASDAQ:FB) IPO. But one group will get rewarded: securities attorneys. Today, three shareholders filed a civil suit against Facebook, Morgan Stanley (NYSE:MS) and the 33 other underwriters. What’s more, the attorney general of Massachusetts has sent a subpoena to Morgan Stanley.

At the heart of these actions is a bombshell story from Reuters. It claims that an analyst from Morgan Stanley, Scott Devitt, came up with lowered revenue and earnings forecasts for Facebook — and provided some investors with those estimates. This was based on information from an executive at Facebook. Those investors may have then sold their shares at the opening of the IPO, when the stock hit $42.

No doubt, this looks extremely distasteful. But is it illegal? Perhaps not. Keep in mind that analysts of the underwriters are not allowed to publish research reports until 40 days after the IPO. That’s according to a long-standing rule — called the “quiet period” — from the Securities & Exchange Commission. Read 

When it comes to cementing marquee deals, Wall Street bankers often let their egos get out of control. They slash fees. They filter out reality. In the end, the bankers regret even taking the deal.

No doubt, this has been the case with the Facebook (NASDAQ:FB) IPO.

In a public offering, the underwriter has many tough responsibilities. It must perform due diligence, organize the parties — such as attorneys and auditors — and advise the senior management team. The underwriter also will help draft the S-1, which must serve as a marketing document for the offering. Read 

Tuesday morning, SpaceX successfully launched the Falcon 9 rocket, which will deliver cargo to the International Space Station. This is a huge achievement, as the private sector will play an increasingly vital role in space exploration.

Yet oddly enough, the crazes in social media and mobile apps might stunt such technological advances.

First, some background. Elon Musk founded SpaceX in 2002. He funded the operation from his cash-out of PayPal, which was sold to eBay (NASDAQ:EBAY). Read 

For the past week, InvestorPlace has conducted a poll gauging your thoughts about the Facebook (NYSE:FB) IPO. Out of more than 1,400 respondents, about 76% said they would not buy the offering. More than 18% indicated they would wait at least a couple months.

Of course, this turned out to be the right move, with Facebook’s stock off 22% from its open on Friday.

As we’ve pointed out in the IPOPlaybook, the hype was too intense for the offering — and it looks like Facebook took full advantage of it. The result was an overpriced IPO. Read