Are witches to blame for today’s market decline?

The Dow sank as much as 140 points heading into mid-day, and sits below the 12,000 barrier broken earlier this week. 
There could me many reasons for the decline: rising oil prices, downgrades, shaky earnings, or perhaps risky witches. 
Risky witches?  Yes, today is a special day for witching and in a Harry Potter-esque scene witches from all over the world have converged on U.S. financial markets to wreak havoc…I hope no one actually believed that ;)
Seriously, today is a day of ”quadruple witching.”  It happens four times a year on the third Friday of March, June, September, and December.
On these special days, four sets of derivative contracts expire: stock index futures, …read more