Three Months Ended

Nine Months Ended

September 30,

2019

2018

2019

2018

Basic (loss) earnings per common share

Net (loss) income attributable to Quaker Chemical Corporation

$

(13,053)

$

19,690

$

16,382

$

51,668

Less: loss (income) allocated to participating securities

46

(77)

(40)

(226)

Net (loss) income available to common shareholders

$

(13,007)

$

19,613

$

16,342

$

51,442

Basic weighted average common shares outstanding

16,185,724

13,278,259

14,271,121

13,263,417

Basic (loss) earnings per common share

$

(0.80)

$

1.48

$

1.15

$

3.88

Diluted (loss) earnings per common share

Net (loss) income attributable to Quaker Chemical Corporation

$

(13,053)

$

19,690

$

16,382

$

51,668

Less: loss (income) allocated to participating securities

46

(77)

(40)

(226)

Net (loss) income available to common shareholders

$

(13,007)

$

19,613

$

16,342

$

51,442

Basic weighted average common shares outstanding

16,185,724

13,278,259

14,271,121

13,263,417

Effect of dilutive securities

—

37,282

42,850

33,928

Diluted weighted average common shares outstanding

16,185,724

13,315,541

14,313,971

13,297,345

Diluted (loss) earnings per common share

$

(0.80)

$

1.47

$

1.14

$

3.87