FISERV INC — institutional ownership

6 funds reported holding FISERV INC in their latest 13F filings, worth $70.8M in total (CUSIP 337738958).

Largest holders

1. IMC-Chicago, LLC — $39.1M
2. Optiver Holding B.V. — $17.7M
3. SIMPLEX TRADING, LLC — $8.10M
4. GROUP ONE TRADING LLC — $4.54M
5. Maven Securities LTD — $653K
6. HRT FINANCIAL LP — $652K