5 companies make stock market debut Friday; Seres Therapeutics soars 90 percent

Markets Associated Press

Five companies made their stock market debut Friday. All the new stocks rose in afternoon trading, but Seres Therapeutics, a biotech company, had the biggest rise. Its shares nearly doubled in its debut.

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Here's more about the companies and how their stocks are doing:

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Green Plains Partners

Based in Omaha, Nebraska, the limited partnership owns fuel storage tanks that it uses to provide ethanol and fuel storage to companies. It raised $150 million after selling 10 million units at $15 per unit, below its expected range. Much of the money raised will go to its parent company, Green Plains Inc. Units of Green Plains Partners LP, which are traded on the Nasdaq exchange under the symbol "GPP," rose 23 cents, or 1.5 percent, to $15.23 in afternoon trading.

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Seres Therapeutics

The company develops treatment that restores gut bacteria and helps fight infections. The company raised $133.7 million after selling more than 7.4 million shares at $18 per share, above its expected range. Seres Therapeutics Inc., based in Cambridge, Massachussets, plans to use money raised to develop its products. Its share, trading on the Nasdaq exchange under the symbol "MCRB," rose $16.74, or 93 percent, to $34.74 in afternoon trading.

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Alarm.com

The company provides home and business security services that let users watch security cameras while they are out, or lock a door, from their smartphone. Alarm.com Holdings Inc., based in Vienna, Virginia, raised $98 million after selling 7 million shares at $14 per share, in the middle of its expected range. It plans to use the money raised for general corporate purposes. Its shares, trading on the Nasdaq exchange under the symbol "ALRM," rose $2.15, or 15.4 percent, to $16.15 in afternoon trading.

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AppFolio

The company provides online software of small businesses in the legal and property management industries. AppFolio Inc., based in Santa Barbara, California, raised $74.4 million after selling 6.2 million shares at $12 per share, the low end of its expected range. It plans to use the money raised to develop more products, hire new people and pay down debt. Its shares are trading on the Nasdaq stock exchange under the symbol "APPF." They rose $1.95, or 16.2 percent, to $13.95 in afternoon trading Friday.

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Xactly

The San Jose, California, company provides online software to businesses that manage employee commissions, bonuses and other performance-based compensation. Xactly Corp., and its selling shareholders, raised $56.3 million after selling more that 7 million shares at $8 per share, which was below its expected range. The company plans to invest the money that it raised. Its shares, trading on the New York Stock Exchange under the symbol "XTLY," rose $1.16, or 14.5 percent, to $9.16 in afternoon trading.