The shares first traded in the Tokyo Stock Exchange at JPY 4,900, or 48.5 percent above their IPO price of JPY 3,300, helped by demand from investors hungry for a rare chance to invest in a tech startup.
In New York, the offering of 22 million American Depository Shares (ADSs) from the world's seventh-most used messenger app company was well-accepted, with the shares closing at $41.58, well above the IPO price of $32.84.
"Considering that Line is little known in the United States, the IPO seems to be a success," said a fund manager at a Japanese asset management firm.
The Tokyo-based company's decision to list first in New York is seen as a sign of its determination to challenge its global peers as it seeks to expand outside Japan and Southeast Asia.
Line is controlled by South Korea's Naver Corp.
After the offering, Naver's ownership dropped to 80.8 percent.
Line's messaging app was launched in the aftermath of Japan's 2011 earthquake and tsunami to overcome downed communications, growing unexpectedly to become the country's dominant mobile messaging platform over the next few years.
The bulk of Line's revenue comes from games and sales of emojis and electronic stickers. The company's revenue and other operating income rose about 28.3 percent to 120.88 billion yen in 2015.
Line reported a loss of JPY 7.97 billion in 2015, compared with a year-earlier profit of 2 billion yen.
Morgan Stanley, Goldman Sachs, JP Morgan and Nomura are among the underwriters to the IPO.
© Thomson Reuters 2016