HELMERICH & PAYNE INC — institutional ownership

3 funds reported holding HELMERICH & PAYNE INC in their latest 13F filings, worth $4.95M in total (CUSIP 423452901).

Largest holders

1. IMC-Chicago, LLC — $3.98M
2. SIMPLEX TRADING, LLC — $638K
3. GROUP ONE TRADING LLC — $334K