Here's how you make money in the stock market.
If you had seen this coming, but didn't know whether the winner would be XM or Sirius, just buy both. Today Sirius stock is up 20%... and XM stock, down 3%.
But let's say you thought of it on 2/29/2004 and didn't know when it was gonna happen. It still would have worked! Let's say you bought $100 of XM and $100 of Sirius on 2/29... today, seven months later, they would be worth $250, a 25% gain. In the same period the Nasdaq has been flat or lost a little.