BOK FINL CORP

Ticker: BOKF CUSIP: 05561Q201 Class: Common Stock

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

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

Q1 2019

Shares 35,599 Value ($000) $2,903 Avg Close $70.07 Range $60.27 - $78.33

Q1 2017

Shares 512 Value ($000) $40 Avg Close $65.22 Range $58.88 - $68.35

Q3 2016

Shares 671 Value ($000) $46 Avg Close $52.46 Range $44.66 - $55.52

Q1 2016

Shares 1,440 Value ($000) $79 Avg Close $40.67 Range $34.19 - $47.03

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2019	35,599	$2,903	$70.07	$60.27 - $78.33
Q1 2017	512	$40	$65.22	$58.88 - $68.35
Q3 2016	671	$46	$52.46	$44.66 - $55.52
Q1 2016	1,440	$79	$40.67	$34.19 - $47.03