ZIX CORP's ticker is and the CUSIP is 98974P950. A total of 3 filers reported holding ZIX CORP in Q1 2021. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $128,000 | +2033.3% | 18,100 | +2162.5% | 0.00% | – |
| Q2 2021 | $6,000 | +20.0% | 800 | +14.3% | 0.00% | – |
| Q1 2021 | $5,000 | -85.7% | 700 | -88.3% | 0.00% | – |
| Q3 2020 | $35,000 | +337.5% | 6,000 | +215.8% | 0.00% | – |
| Q1 2020 | $8,000 | -98.4% | 1,900 | -97.3% | 0.00% | -100.0% |
| Q3 2019 | $512,000 | +87.5% | 70,700 | +135.7% | 0.00% | +100.0% |
| Q2 2019 | $273,000 | +32.5% | 30,000 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $206,000 | +984.2% | 30,000 | +782.4% | 0.00% | – |
| Q4 2018 | $19,000 | 0.0% | 3,400 | 0.0% | 0.00% | – |
| Q3 2018 | $19,000 | -95.7% | 3,400 | +240.0% | 0.00% | -100.0% |
| Q4 2017 | $438,000 | +8660.0% | 1,000 | -9.1% | 0.00% | – |
| Q3 2017 | $5,000 | -86.8% | 1,100 | -88.7% | 0.00% | -100.0% |
| Q1 2016 | $38,000 | -76.8% | 9,700 | -70.0% | 0.00% | -50.0% |
| Q4 2015 | $164,000 | +290.5% | 32,300 | +223.0% | 0.00% | +100.0% |
| Q3 2015 | $42,000 | -10.6% | 10,000 | -9.9% | 0.00% | 0.0% |
| Q2 2013 | $47,000 | – | 11,100 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| CONCOURSE FINANCIAL GROUP SECURITIES, INC. | 0 | $0 | 0.00% |
| GROUP ONE TRADING, L.P. | 700 | $5,000 | 0.00% |
| SIMPLEX TRADING, LLC | 58 | $43,000 | 0.00% |