Enron Mail

From:jeremy.wong@enron.com
To:john.griffith@enron.com
Subject:Vega Issue - Vol. Smile
Cc:errol.mclaughlin@enron.com, dave.wei@enron.com
Bcc:errol.mclaughlin@enron.com, dave.wei@enron.com
Date:Mon, 9 Apr 2001 11:18:00 -0700 (PDT)

John:

The reason for the large Vega numbers on the TopPage report, while there were
no corresponding changes in the Volatility curves, is due to the change in
the mid. price for the current day versus the prior day. The corresponding
volatility skews that are added to the vols. for the 2 days is causing the
large vega numbers.

For example, for deal number QV5087.2 (exp. date 01-Jan-2002):

Current Day Prior Day
Mid. Price 5.885 5.772
Strike Price 3.5 3.5
Mid - Strike 2.385 2.272
Vol. 0.555 0.555
Vol. Skew 0.03816 0.03635
Actual Vol. 0.59316 0.59135

Option value for prior day using current day's vol. = 7,616,935
Option value for prior day using prior day's vol. = 7,547,238
Vega = 69,697

Thank you,
Jeremy
x3-0573