PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

Quad-Cities Investment Group, LLC's Holding History (CIK: 0001741426)

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

Q4 2018

Shares 1,000 Value ($000) $12 Avg Close $16.47 Range $11.27 - $19.76

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2018	1,000	$12	$16.47	$11.27 - $19.76