IES HLDGS INC

Ticker: IESC CUSIP: 44951W106 Class: Common Stock

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

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

Q4 2017

Shares 4,560 Value ($000) $79 Avg Close $18.04 Range $16.55 - $19.35

Q3 2017

Shares 1,419 Value ($000) $25 Avg Close $16.61 Range $14.05 - $18.80

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2017	4,560	$79	$18.04	$16.55 - $19.35
Q3 2017	1,419	$25	$16.61	$14.05 - $18.80