21VIANET GROUP INC's ticker is and the CUSIP is 90138A903. A total of 4 filers reported holding 21VIANET GROUP INC in Q1 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $0 | -100.0% | 100 | -96.2% | 0.00% | – |
| Q2 2023 | $7 | -83.7% | 2,600 | -80.5% | 0.00% | – |
| Q1 2023 | $43 | -79.3% | 13,300 | -63.8% | 0.00% | – |
| Q4 2022 | $208 | -100.0% | 36,700 | -63.6% | 0.00% | -100.0% |
| Q3 2022 | $554,000 | -61.3% | 100,800 | -57.5% | 0.00% | -50.0% |
| Q2 2022 | $1,432,000 | +375.7% | 237,200 | +358.8% | 0.00% | – |
| Q1 2022 | $301,000 | -70.7% | 51,700 | -54.6% | 0.00% | -100.0% |
| Q4 2021 | $1,027,000 | -34.0% | 113,800 | +62.8% | 0.00% | 0.0% |
| Q3 2021 | $1,556,000 | -3.0% | 69,900 | 0.0% | 0.00% | -50.0% |
| Q2 2021 | $1,604,000 | -31.4% | 69,900 | +9554.7% | 0.00% | -50.0% |
| Q1 2021 | $2,338,000 | – | 724 | +43.7% | 0.00% | – |
| Q4 2020 | $0 | – | 504 | +72.6% | 0.00% | – |
| Q3 2020 | $0 | -100.0% | 292 | +156.1% | 0.00% | – |
| Q2 2020 | $272,000 | -19.5% | 114 | -53.3% | 0.00% | -100.0% |
| Q1 2020 | $338,000 | +704.8% | 244 | +320.7% | 0.00% | – |
| Q4 2019 | $42,000 | +950.0% | 58 | +866.7% | 0.00% | – |
| Q3 2019 | $4,000 | +33.3% | 6 | +20.0% | 0.00% | – |
| Q2 2019 | $3,000 | – | 5 | +400.0% | 0.00% | – |
| Q1 2019 | $0 | -100.0% | 1 | -98.2% | 0.00% | – |
| Q4 2018 | $47,000 | -90.4% | 55 | -88.7% | 0.00% | -100.0% |
| Q3 2018 | $490,000 | +394.9% | 486 | +371.8% | 0.00% | – |
| Q2 2018 | $99,000 | +9800.0% | 103 | +157.5% | 0.00% | – |
| Q1 2018 | $1,000 | – | 40 | +1233.3% | 0.00% | – |
| Q4 2017 | $0 | -100.0% | 3 | -97.6% | 0.00% | – |
| Q3 2017 | $5,000 | +25.0% | 124 | +2.5% | 0.00% | – |
| Q2 2017 | $4,000 | – | 121 | +1000.0% | 0.00% | – |
| Q1 2017 | $0 | – | 11 | -47.6% | 0.00% | – |
| Q4 2016 | $0 | -100.0% | 21 | -96.9% | 0.00% | – |
| Q3 2016 | $6,000 | +200.0% | 678 | +769.2% | 0.00% | – |
| Q2 2016 | $2,000 | 0.0% | 78 | +41.8% | 0.00% | – |
| Q1 2016 | $2,000 | -95.1% | 55 | -91.2% | 0.00% | -100.0% |
| Q4 2015 | $41,000 | +412.5% | 624 | +88.0% | 0.00% | +200.0% |
| Q3 2015 | $8,000 | – | 332 | +342.7% | 0.00% | – |
| Q2 2015 | $0 | -100.0% | 75 | +70.5% | 0.00% | – |
| Q1 2015 | $3,000 | – | 44 | +528.6% | 0.00% | – |
| Q4 2014 | $0 | – | 7 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| SIMPLEX TRADING, LLC | 100 | $0 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 2,500 | $7,825 | 0.00% |