GROUP ONE TRADING, L.P. - MARKWEST ENERGY PARTNERS L P ownership

MARKWEST ENERGY PARTNERS L P's ticker is MWE and the CUSIP is 570759100. A total of 325 filers reported holding MARKWEST ENERGY PARTNERS L P in Q4 2014. The put-call ratio across all filers is 0.19 and the average weighting 1.0%.

Quarter-by-quarter ownership
GROUP ONE TRADING, L.P. ownership history of MARKWEST ENERGY PARTNERS L P
ValueSharesWeighting
Q3 2015$1,010,000
+113.1%
23,549
+180.1%
0.01%
+100.0%
Q2 2015$474,000
-78.3%
8,408
-74.5%
0.01%
-79.4%
Q1 2015$2,180,000
-35.3%
32,984
-34.2%
0.03%
-33.3%
Q4 2014$3,370,000
+226.6%
50,154
+247.9%
0.05%
+218.8%
Q2 2014$1,032,000
-19.9%
14,415
-26.9%
0.02%
-27.3%
Q1 2014$1,289,000
+169.1%
19,733
+172.2%
0.02%
+214.3%
Q4 2013$479,000
+15866.7%
7,249
+20036.1%
0.01%
Q3 2013$3,000
-99.4%
36
-99.5%
0.00%
-100.0%
Q2 2013$502,0007,5080.01%
Other shareholders

There were no reported owners of MARKWEST ENERGY PARTNERS L P in Q4 2014.

NameSharesValueWeighting ↓
View complete list of MARKWEST ENERGY PARTNERS L P shareholders