WISCONSIN ENERGY CORP

CUSIP: 976657106 Class: COM

RATIONAL ADVISORS LLC's Holding History (CIK: 0001143565)

Note: Option positions (PUT/CALL) are excluded.

Q2 2011
Shares 8,600 Value ($000) $270 Avg Close Range
Q1 2011
Shares 6,400 Value ($000) $195 Avg Close Range
Q4 2010
Shares 3,200 Value ($000) $188 Avg Close Range