MEDCO HEALTH SOLUTIONS

CUSIP: 58405U102 Class: COMMON STOCK

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

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

Q1 2010
Shares 43,725 Value ($000) $2,823 Avg Close — Range —
Q4 2009
Shares 43,725 Value ($000) $2,794 Avg Close — Range —
Q3 2009
Shares 58,300 Value ($000) $3,225 Avg Close — Range —
Q2 2009
Shares 58,300 Value ($000) $2,659 Avg Close — Range —
Q1 2009
Shares 1,900 Value ($000) $79 Avg Close — Range —