Volatility in the stock market today is high due to several factors both domestically and abroad.
The Obamacare ruling is the main driver causing uncertainty in the market, followed by the start of the European Union summit today in Brussels.
The Obamacare ruling had been anticipated with such fervor that reporters camped in front of the Supreme Court for days before the decision.
They finally got one - and it may come as a surprise to many.
The controversial mandate that requires everyone to purchase healthcare by 2014 or pay a small fine was upheld. The vote came in at 5-4 with Justices Scalia, Kennedy, Thomas and Alito dissenting.
Chief Justice Roberts said that the mandate is not a valid exercise of Congress's power under the Commerce Clause, but it will survive as a tax.
Republicans had been almost certain that the mandate would be stuck down and President Obama can now breathe a small sigh of relief that his healthcare overhaul has been upheld.
Back to the EU summit, which has been awaited with such pessimism that the yield on Spanish 10-year bonds has risen above 7% again and the euro slipped to a three-week low of $1.24 versus the dollar.
There is an unusual and detrimental air of division and discord among the European leaders heading into the summit. The continent needs to work towards more integration rather than fragmentation if they are to lay down a framework for better fiscal, financial and political union.
U.S. unemployment claims fell slightly from the 392,000 initial claims reported last week to a still alarmingly high number of 386,000 for the week ended June 23. The final estimate for the first quarter's gross domestic product (GDP) came in at the expected 1.9%, but that estimate had already been lowered last week by the U.S. Federal Reserve.
Looking beyond these reports, here are some stocks in the headlines today.