PROPETRO HLDG CORP

Ticker: PUMP CUSIP: 74347M108 Class: Common Stock

Mount Yale Investment Advisors, LLC's Holding History (CIK: 0001744349)

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

Q3 2018

Shares 10,478 Value ($000) $196 Avg Close $16.12 Range $14.32 - $17.89

Q2 2018

Shares 10,835 Value ($000) $170 Avg Close $17.21 Range $14.00 - $20.91

Q1 2018

Shares 1,406 Value ($000) $22 Avg Close $18.08 Range $14.56 - $22.88

Period	Shares	Value ($000)	Average Close	Price Range
Q3 2018	10,478	$196	$16.12	$14.32 - $17.89
Q2 2018	10,835	$170	$17.21	$14.00 - $20.91
Q1 2018	1,406	$22	$18.08	$14.56 - $22.88