NEW YORK (Dow Jones) -- IPG Photonics Corp. rallied more than 50% and Guidance Software jumped more than 20% as the first pair of tech IPOs to step off in a single day since the middle of October drew cheers on Wall Street.

Meanwhile, real-estate investment trust DCT Industrial Trust raised about $200 million as the richest IPO of the day, and Atlas Energy Resources raised $133 million, underscoring the busy activity in the IPO market.

IPOs were boosted by overall bullishness in the stock market, as the Dow Jones Industrial Average (DJI) hit an intraday record on the heels of retail sales data.

A full plate of IPOs await debuts on Thursday, including the week's richest IPO of more than $600 million from Geneses Lease, a new plane leasing firm launched by General Electric.

IPG Photonics shines bright

IPG Photonics (NASDAQ-NMS:IPGP) (IPGP) offered 9 million shares at $16.50 each, yielding proceeds of $149 million.

The stock opened at $25 a share and changed hands at $25.10 in the open market.

In a sign of strong demand, the Oxford, Mass.-based maker of fiber lasers priced above its estimated range of $13.50 to $15.50 a share.

IPG Photonics reported net income of $12.6 million and revenue of $101 million in the nine months ended Sept. 30, compared to net income of $3.5 million and revenue of $62.2 million in the year-earlier period.

Shareholders in the company include Chairman and CEO Valentin Gapontsev, 67, as well as IP Fibre Devices of the U.K., TA Associates and Merrill Lynch.

Guidance Software rises from discounted price

As for Guidance Software (NASDAQ-NMS:GUID) (GUID) , the IPO priced at $11.50 a share, below the prospective range of $12.50 to $14.50 a share. The stock opened at $13 a share and rose to $14.10 .

The company raised $58 million by offering 5 million shares.

John Fitzgibbon of IPOScoop.com said the discounted price for Guidance Software came as a surprise since he'd heard that the deal was oversubscribed.

The Pasadena, Calif.-based maker of forensic software for digital investigations is going public with underwriters Morgan Stanley and Lehman Brothers.

Guidance Software posted a net loss of $2.2 million and revenue of $39.3 million for the nine months ended Sept. 30, compared to net income of $1.2 million and revenue of $27.2 million in the year-ago period.

George Tenet, a former Director of Central Intelligence, sits on the company's board of directors, which he joined in December 2005.

Acme Packet (NASDAQ-NMS:APKT) (APKT) and eHealth (EHTH) both began trading on Oct. 13, the last time a pair of tech firms kicked off trading on the same day.

DCT Industrial Trust (NYSE:DCT) ups deal size

DCT Industrial Trust Inc. (NYSE:DCT) (DCT) priced its IPO of 16.3 million shares at $ 12.25 each, raising $199.7 million.

The IPO opened at $12.76 and edged down to $12.55 in the open market.

The Denver-based real-estate company specializes in the ownership, acquisition, development and management of bulk distribution and light industrial properties in 23 of the highest-volume distribution markets in the United States.

Late last month, the REIT filed to offer 15 million shares for $11.50 to $ 12.50 each.

Atlas Energy Resources raises $133 million

Atlas Energy Resources (NYSE:ATN) (ATN) priced 6.33 million common units at $21 each in a bid to raise $133 million. The IPO opened at $21.86 and rose to $22.39 in the open market.

That the IPO by the unit of Atlas America Inc. (NASDAQ-NMS:ATLS) (ATLS) priced at the top of its $19-to-$21 range reflected healthy investor interest. Shares of Atlas America (NASDAQ-NMS:ATLS) rose 38 cents to $71.48.

MEDecision's IPO discounted

Also Wednesday, MEDecision (NASDAQ-NMS:MEDE) (MEDE) cut the estimated price of its upcoming IPO to $10 a share, down from $11.50 to $13.50 a share. The stock opened at $9.25 and rose to $9.90.

The Wayne, Pa.-based maker of software for health-care providers also reduced the size of the deal to 4.7 million shares from 5.5 million shares.

Under the new terms, the IPO will yield gross proceeds of about $47 million.

    (END) Dow Jones Newswires   12-13-06 1207   Copyright (c) 2006 Dow Jones & Company, Inc.