POWERSHARES ETF TRUST

CUSIP: 73935X286 Class: COMMON STOCK

COMERICA BANK's Holding History (CIK: 0000901541)

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

Q3 2013
Shares 12,734 Value ($000) $497 Avg Close — Range —
Q2 2013
Shares 10,314 Value ($000) $366 Avg Close — Range —