POWERSHARES ETF TRUST

CUSIP: 73935X575 Class: COM

BOKF, NA's Holding History (CIK: 0000009634)

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

Q1 2018
Shares 6,582 Value ($000) $200 Avg Close — Range —
Q3 2017
Shares 6,582 Value ($000) $187 Avg Close — Range —