Duke Energy Corp

CUSIP: 26441C105 Class: COM

Zurcher Kantonalbank (Zurich Cantonalbank)'s Holding History (CIK: 0001368163)

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

Q2 2012
Shares 228,576 Value ($000) $5,271 Avg Close — Range —
Q1 2012
Shares 257,810 Value ($000) $5,417 Avg Close — Range —
Q4 2011
Shares 193,464 Value ($000) $4,256 Avg Close — Range —