SPDR SERIES TRUST — institutional ownership

4 funds reported holding SPDR SERIES TRUST in their latest 13F filings, worth $183M in total (CUSIP 78468R906).

Largest holders

1. Optiver Holding B.V. — $96.4M
2. IMC-Chicago, LLC — $76.7M
3. GROUP ONE TRADING LLC — $9.47M
4. Ancora Advisors LLC — $50.3K