NL INDS INC

Ticker: NL CUSIP: 629156407 Class: Common Stock

Walleye Trading LLC's Holding History (CIK: 0001388391)

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

Q1 2017

Shares 2,800 Value ($000) $18 Avg Close $4.54 Range $3.53 - $6.08

Q3 2016

Shares 4,003 Value ($000) $16 Avg Close $2.38 Range $1.51 - $4.17

Q2 2016

Shares 2,100 Value ($000) $5 Avg Close $1.92 Range $1.44 - $2.37

Q1 2016

Shares 4,900 Value ($000) $11 Avg Close $1.59 Range $1.29 - $2.08

Q4 2015

Shares 400 Value ($000) $1 Avg Close $2.26 Range $1.77 - $2.84

Q2 2015

Shares 500 Value ($000) $4 Avg Close $5.07 Range $4.66 - $5.54

Period	Shares	Value ($000)	Average Close	Price Range
Q1 2017	2,800	$18	$4.54	$3.53 - $6.08
Q3 2016	4,003	$16	$2.38	$1.51 - $4.17
Q2 2016	2,100	$5	$1.92	$1.44 - $2.37
Q1 2016	4,900	$11	$1.59	$1.29 - $2.08
Q4 2015	400	$1	$2.26	$1.77 - $2.84
Q2 2015	500	$4	$5.07	$4.66 - $5.54