POWERSHARES QQQ TRUST

CUSIP: 73935A104 Class: COM

CASTLEARK MANAGEMENT LLC's Holding History (CIK: 0001106832)

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

Q4 2017
Shares 48,500 Value ($000) $7,554 Avg Close — Range —
Q3 2017
Shares 100,000 Value ($000) $14,545 Avg Close — Range —
Q2 2017
Shares 100,000 Value ($000) $13,764 Avg Close — Range —
Q1 2017
Shares 100,000 Value ($000) $13,238 Avg Close — Range —
Q4 2016
Shares 100,000 Value ($000) $11,848 Avg Close — Range —
Q3 2016
Shares 200,000 Value ($000) $23,744 Avg Close — Range —
Q1 2016
Shares 91,000 Value ($000) $9,937 Avg Close — Range —