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G2++ calibration

Posted: February 20th, 2014, 4:41 pm
by CloudNine
Can anybody please help me how to get EUR ATM cap volatilities in bloomberg to calibrate G2++ model.

G2++ calibration

Posted: February 22nd, 2014, 10:00 am
by CloudNine
I want to confirm that i am using VCUB command in bloomberg to get EUR ATM cap volatilities to calibrate gaussian one factor.is it right?.My goal is to calibrate EUR 3m , 5y, 10y and do Monte carlo simulationbut i am getting wired values for EUR 3m after monte carlo.where as if do the same excercise for USD , 3m is fine. The only reason is see EUR cap vol is more volatile than US cap curve. Any inputs are appreciated?.

G2++ calibration

Posted: February 24th, 2014, 8:41 am
by chewwy
well, i'm not overly surprised if the one factor model doesn't give a good fit at both long terms and the short end...

G2++ calibration

Posted: February 25th, 2014, 6:32 am
by CloudNine
only EUR 3m is giving me spikes after Monte carlo.is this because of Too high Cap volatilities ?.because if i compare EUR ATM cap vol for last 10 year , cap vol have increased drastically after 2008.

G2++ calibration

Posted: February 25th, 2014, 7:34 am
by pimpel
It has increased, because the rates decreased. If normal vol can be approximated by \sigma * F then in order to have a normal vol at 0.8%-1%, when rates are at 1% you need to have lognormal vol at 100%. That is as simple as that. There must be something wrong either with your calibration or simulation scheme.

G2++ calibration

Posted: April 28th, 2014, 5:56 am
by CloudNine
Can anybody , please help me how to calculate Market forward rate i.e. f^M(0,T) in G2++ interest rate model Thanks in advance