Is Quibids stock available? As of today, no it is not. Quibids is not a publicly listed company and therefore there is no stock of Quibids that you can buy on the market. Quibids CEO is Matt Beckham. He gave an interview to PAW about an year ago, which can be an interesting read for anyone interested. You can find the interview here. Quibids was launched in October 2009, so it is not a long time.
For Quibids stock to be available, the company will have to get listed. For this, first it should establish a good track record. Another problem is that many consider penny auctions to be similar to gambling. This is a legal gray area and I don't think there is consensus on this issue. Personally I don't think penny auctions are comparable to gambling, but then I am no legal expert. In the United States, online gambling is illegal. Obviously, this is an issue not just with Quibids but with all the penny auction websites in the market today. Still, Quibids has a long way to go before it gets its stock out and is traded on the market.