BOSTON (

TheStreet

) --

Dunkin' Brands

(DNKN) - Get Dunkin' Brands Group, Inc. Report

served up big gains for investors in the company's trading debut on the

Nasdaq Stock Market

Wednesday.

The stock, which began trading Wednesday under the symbol "DNKN," opened at $25 and closed at $27.85, a gain of $8.85 or 46.6%. More than 44 million shares changed hands, with the stock showing an intraday high of $29.62.

Dunkin' Brands

, which owns Dunkin' Donuts and ice cream chain Baskin-Robbins, priced its initial public offering late Tuesday at $19 a share.

Dunkin' Donuts' Big and Toasty sandwich

The company, which was bought by a private-equity consortium including

Bain Capital

,

Carlyle Group

and

Thomas H. Lee Partners

back in 2006 for $2.4 billion, is selling 22.25 million shares in its market debut to raise roughly $423 million.

Other coffee- and doughnut-related stocks were trading lower Wednesday.

Krispy Kreme Donuts

(KKD)

dropped 9.3% to $8.23;

Peet's Coffee & Tea

TheStreet Recommends

( PEET) lost 3.9% to $57.90;

Green Mountain Coffee Roasters

(GMCR)

fell 4.3% to $88.11;

Starbucks

(SBUX) - Get Starbucks Corporation Report

shares slipped 3% to $38.97;

Tim Hortons

(THI)

shares slid 3.1% to $46.97; and

McDonald's

(MCD) - Get McDonald's Corporation (MCD) Report

was down 1.7% to $87.09.

-- Written by Robert Holmes in Boston

.

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