POWERSHS DB MULTI SECT COMM

CUSIP: 73936B408 Class: EXCHANGE TRADED

TETRAD CORP's Holding History (CIK: 0000883597)

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

Q1 2013
Shares 15,000 Value ($000) $389 Avg Close — Range —
Q4 2012
Shares 15,000 Value ($000) $419 Avg Close — Range —
Q3 2012
Shares 15,000 Value ($000) $441 Avg Close — Range —
Q2 2012
Shares 20,100 Value ($000) $567 Avg Close — Range —
Q1 2012
Shares 17,700 Value ($000) $497 Avg Close — Range —
Q4 2011
Shares 16,600 Value ($000) $479 Avg Close — Range —
Q3 2011
Shares 16,600 Value ($000) $492 Avg Close — Range —
Q2 2011
Shares 14,700 Value ($000) $467 Avg Close — Range —
Q1 2011
Shares 14,700 Value ($000) $503 Avg Close — Range —