MERCK & CO INC: summary

MERCK & CO INC appears in 14 institutions' latest stored 13F reports.

Top holders

• IMC-Chicago, LLC
• JPMORGAN CHASE & CO
• SIMPLEX TRADING, LLC
• GROUP ONE TRADING LLC
• Gladius Capital Management LP
• Maven Securities LTD
• KNIGHT CAPITAL GROUP, INC.
• SOCIETE GENERALE
• AlphaCore Capital LLC
• BANTAMAC CAPITAL, LLC