NEW YORK (CNN/Money) - For investors who missed JetBlue's IPO flight on Friday, Continental Airlines subsidiary ExpressJet Holdings Inc. is taxiing onto the runway next week with an initial public offering of its own.

But analysts cautioned that investors should know the difference between the two airlines.

Shares of low-cost airline JetBlue (JBLU: up $18.00 to $45.00, Research, Estimates) soared 67 percent in their first day of trading Friday, the biggest gain for a new issue in nearly a year, and that momentum may spill over to ExpressJet.

"It's a ripple effect that's going to make people think it's another JetBlue, which is sad," said David Menlow, president of IPOFinancial.com. "It's certainly not. It's an airline that's been around for a while and they have big airline problems."

He said ExpressJet faces high maintenance costs and, being tied to Continental (CAL: Research, Estimates), will also suffer if the big airlines continue to struggle.

ExpressJet, which operates now as Continental Express, is the world's second-largest regional airline, flying to 113 cities in 34 states, the District of Columbia, Mexico and Canada.

The carrier had revenue of more than $980 million in 2001, earning more than $48 million for the year.

"The revenues are growing, but not to the magnitude of JetBlue," said John Fitzgibbon, editor of IPO Desktop. "However, the blast-off from JetBlue has certainly shed a favorable light on the airline IPOs that are lining up on the runway."

"It's certainly going to be easier for the rest of them to go public," Fitzgibbon said.

ExpressJet plans to raise about $390 million, selling 26 million shares at an estimated $14 to $16 a share via lead underwriters Salomon Smith Barney and Morgan Stanley.

The offering was boosted from its original size of $300 million. Continental postponed the IPO a week after the attacks of Sept. 11.

Continental is selling 16 million shares and ExpressJet is selling 10 million. There is also an option, or "green shoe," for the underwriters to purchase up to 3.9 million more shares.

After the IPO, Continental will own 59 percent of Class A stock. Continental plans to spin off ExpressJet six months after the IPO is completed by distributing shares to stockholders. ExpressJet will use the proceeds of the IPO to pay off a portion of debt to Continental.

The company will trade on the New York Stock Exchange as "XJT."

Also on deck is Medical Staffing Network, which provides nurse staffing for health-care facilities, and which analysts said should have a solid debut.

"This is a company that's been doing very, very well," Fitzgibbon said.

He said the company's revenues are growing quickly and the fact that it will also be a New York Stock Exchange stock is also a positive sign, considering the stricter listing requirements of the Big Board.

Medical Staffing had revenue of more than $338 million in 2001 and lost about $3.1 million.

The company plans to raise about $125 million, pricing a little over 7.8 million shares at an estimated $15 to $17 a share through lead managers Lehman Bros. and Deutsche Bank Securities.

Menlow said the IPO could help the company expand by using stock for acquisitions.

Medical Staffing, which will trade as "MRN," plans to use the proceeds from the IPO to pay off debt.