DOUGLAS DYNAMICS INC

Ticker: PLOW CUSIP: 25960R105 Class: Common Stock

GROUP ONE TRADING, L.P.'s Holding History (CIK: 0000932540)

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

Q4 2014

Shares 1,793 Value ($000) $38 Avg Close $21.46 Range $18.40 - $24.90

Period	Shares	Value ($000)	Average Close	Price Range
Q4 2014	1,793	$38	$21.46	$18.40 - $24.90