STEEL DYNAMICS INC

Ticker: STLD CUSIP: 858119100 Class: COMMON STOCK

TOCQUEVILLE ASSET MANAGEMENT L.P.'s Holding History (CIK: 0000883961)

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

Q2 2018

Shares 4,728 Value ($000) $217 Avg Close $40.25 Range $36.27 - $44.32

Q1 2018

Shares 4,736 Value ($000) $209 Avg Close $39.00 Range $34.83 - $42.94

Q4 2017

Shares 4,758 Value ($000) $205 Avg Close $32.46 Range $28.33 - $37.17

Period	Shares	Value ($000)	Average Close	Price Range
Q2 2018	4,728	$217	$40.25	$36.27 - $44.32
Q1 2018	4,736	$209	$39.00	$34.83 - $42.94
Q4 2017	4,758	$205	$32.46	$28.33 - $37.17