BLACK HILLS CORP PUT is a security (CUSIP 092113959) tracked across SEC portfolio filings. 4 institutional managers reported $1.2M on Form 13F as of 2026-03-31.
| Manager | Location | Value | Shares |
|---|---|---|---|
| SIMPLEX TRADING, LLC | CHICAGO, IL | $750K | — |
| IMC-Chicago, LLC | CHICAGO, IL | $437K | — |
| GROUP ONE TRADING, L.P. | CHICAGO, IL | $35K | — |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | BIRMINGHAM, AL | — | — |