MOST READ: Sirius and XM Together at Last

Updated from 9:17 a.m. EDT

Sirius Satellite Radio and XM Satellite Radio have finally completed their merger, just days after the Federal Communications Commission voted to clear the deal.

However, shares of Sirius continued their recent slide, lately down 20% to $1.50, after the company announced details of a $375 million common stock offering.

The new company plans to change its corporate name to Sirius XM Radio and trade on the Nasdaq Global Select Market under the symbol SIRI. XM shareholders will receive 4.6 shares of Sirius common stock for each share of XM. ...