21VIANET GROUP INC's ticker is and the CUSIP is 90138A953. A total of 3 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 | $201 | +31.4% | 64,300 | +21.1% | 0.00% | – |
| Q2 2023 | $153 | -53.2% | 53,100 | -47.5% | 0.00% | – |
| Q1 2023 | $327 | -19.3% | 101,100 | +41.2% | 0.00% | – |
| Q4 2022 | $405 | -99.9% | 71,600 | +24.7% | 0.00% | – |
| Q3 2022 | $315,000 | +370.1% | 57,400 | +417.1% | 0.00% | – |
| Q2 2022 | $67,000 | -17.3% | 11,100 | -20.7% | 0.00% | – |
| Q1 2022 | $81,000 | -23.6% | 14,000 | +18.6% | 0.00% | – |
| Q4 2021 | $106,000 | -86.1% | 11,800 | -65.5% | 0.00% | -100.0% |
| Q3 2021 | $761,000 | +3.1% | 34,200 | +6.2% | 0.00% | 0.0% |
| Q2 2021 | $738,000 | -31.0% | 32,200 | +9628.1% | 0.00% | -50.0% |
| Q1 2021 | $1,069,000 | – | 331 | +23.5% | 0.00% | – |
| Q4 2020 | $0 | – | 268 | +3250.0% | 0.00% | – |
| Q3 2020 | $0 | -100.0% | 8 | -93.3% | 0.00% | – |
| Q2 2020 | $286,000 | -4.7% | 120 | -44.7% | 0.00% | -100.0% |
| Q1 2020 | $300,000 | +2207.7% | 217 | +1105.6% | 0.00% | – |
| Q4 2019 | $13,000 | -59.4% | 18 | -58.1% | 0.00% | – |
| Q3 2019 | $32,000 | +39.1% | 43 | +43.3% | 0.00% | – |
| Q2 2019 | $23,000 | +228.6% | 30 | +200.0% | 0.00% | – |
| Q1 2019 | $7,000 | +600.0% | 10 | +400.0% | 0.00% | – |
| Q4 2018 | $1,000 | -98.9% | 2 | -97.8% | 0.00% | – |
| Q3 2018 | $91,000 | +7.1% | 91 | +3.4% | 0.00% | – |
| Q2 2018 | $85,000 | +32.8% | 88 | -49.4% | 0.00% | -100.0% |
| Q1 2018 | $64,000 | +1500.0% | 174 | +68.9% | 0.00% | – |
| Q4 2017 | $4,000 | +33.3% | 103 | -15.6% | 0.00% | – |
| Q3 2017 | $3,000 | -62.5% | 122 | +1.7% | 0.00% | – |
| Q2 2017 | $8,000 | +100.0% | 120 | +380.0% | 0.00% | – |
| Q1 2017 | $4,000 | -92.6% | 25 | -89.8% | 0.00% | -100.0% |
| Q4 2016 | $54,000 | -84.2% | 244 | -83.1% | 0.00% | -87.0% |
| Q3 2016 | $342,000 | +194.8% | 1,444 | +318.6% | 0.02% | +187.5% |
| Q2 2016 | $116,000 | +78.5% | 345 | -19.0% | 0.01% | +60.0% |
| Q1 2016 | $65,000 | -60.8% | 426 | -78.6% | 0.01% | -61.5% |
| Q4 2015 | $166,000 | +45.6% | 1,992 | +115.1% | 0.01% | +62.5% |
| Q3 2015 | $114,000 | +171.4% | 926 | +271.9% | 0.01% | +100.0% |
| Q2 2015 | $42,000 | +740.0% | 249 | +555.3% | 0.00% | +300.0% |
| Q1 2015 | $5,000 | -89.1% | 38 | -88.7% | 0.00% | -83.3% |
| Q4 2014 | $46,000 | – | 337 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| JANE STREET GROUP, LLC | 50,500 | $163,620 | 0.00% |
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| SIMPLEX TRADING, LLC | 101,100 | $327 | 0.00% |