Parallax Volatility Advisers’s Natural Gas Services Group NGS Stock Holding History

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Shares Change %	Capital Flow	Portfolio Weight	Portfolio Position
2018 Q1	–	Sell	-1,974	Closed	-$52K	–	2429
2017 Q4	$52K	Buy	+1,974	New	+$52K	﹤0.01%	2088
2014 Q2	–	Sell	-651	Closed	-$20K	–	1521
2014 Q1	$20K	Sell	651 -939	-59%	-$28.8K	﹤0.01%	788
2013 Q4	$44K	Buy	+1,590	New	+$44K	﹤0.01%	654