RENEE MONTAGNE, HOST:
The online coupon site Groupon is offering shares on the stock market for the first time today. Groupon's popularity soared after it began offering daily online discounts for local stores, restaurants and the like. Its initial public offering has been one of the most eagerly anticipated IPOs of the year. Shares priced at $20 hit the NASDAQ stock exchange this morning. In the run-up to this share offering, Groupon has been dogged by investor concerns over management, questions about its accounting methods, and debate about what it's worth. So trading will give a sense of what the broader market thinks Groupon is worth. Transcript provided by NPR, Copyright NPR.