The Ibex 35 has registered the worst decline since October 2008 when it closed Tuesday, revealing a 14% drop during the month of November.

The Ibex 35 closed at 9,267.2 points Tuesday, with a 0.62% drop, which has resulted in an accumulated loss of 14.3% in November as a whole, making it the worst monthly drop since the Lehman Brothers collapsed in October 2008.