BLACKROCK INC's ticker is and the CUSIP is 09247X951. A total of 3 filers reported holding BLACKROCK INC in Q3 2013. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2013 | $1,000 | – | 28 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| GROUP ONE TRADING, L.P. | 521,300 | $477,281,000 | 0.38% |
| Maven Securities LTD | 5,800 | $5,310,000 | 0.15% |
| SIMPLEX TRADING, LLC | 76,400 | $69,948,000 | 0.07% |
| IMC-Chicago, LLC | 91,600 | $83,865,000 | 0.07% |
| Allianz Asset Management GmbH | 8,200 | $7,508,000 | 0.01% |
| JPMORGAN CHASE & CO | 15,100 | $13,825,000 | 0.00% |
| SG Americas Securities, LLC | 19,400 | $46,000 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |