CORPORATE OFFICE PPTYS TR

Ticker: CDP CUSIP: 22002T108 Class: SHS BEN INT

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

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

Q4 2010
Shares 2,400 Value ($000) $84 Avg Close — Range —
Q1 2010
Shares 4,700 Value ($000) $189 Avg Close — Range —
Q4 2009
Shares 4,700 Value ($000) $172 Avg Close — Range —
Q3 2009
Shares 34,800 Value ($000) $1,283 Avg Close — Range —
Q2 2009
Shares 22,500 Value ($000) $660 Avg Close — Range —
Q1 2009
Shares 22,500 Value ($000) $559 Avg Close — Range —