The data displays a breakdown of the global security appliance market according to the vendors' market share from the first quarter of 2012 to the latest quarter. In the first quarter of 2018, Cisco's market share in the security appliance market was 16.43%.
1Q '11 | 17.6 | 11 | 4.9 | 8.8 | 5.5 | 52.2 | |||||
1Q '12 | 17.8 | 12.3 | 5.3 | 7.8 | 5.8 | 51 | |||||
2Q '12 | 17.2 | 12.7 | 5.8 | 3.4 | 7.1 | 53.8 | |||||
3Q '12 | 16 | 12.7 | 3.9 | 5.9 | 7.9 | 53.6 | |||||
4Q '12 | 14.4 | 11.8 | 3.6 | 5.6 | 6.4 | 58.2 | |||||
1Q '13 | 16.6 | 12.5 | 4.3 | 6.2 | 6.4 | 5.5 | 48.5 | ||||
2Q '13 | 16.5 | 12.6 | 6.3 | 5.1 | 5.5 | 5 | 49 | ||||
3Q '13 | 15.9 | 12.4 | 5.3 | 6.4 | 6.2 | 5.1 | 48.7 | ||||
4Q '13 | 18 | 12.5 | 5.4 | 6.5 | 4.6 | 6.1 | 5.3 | 41.6 | |||
1Q '14 | 17.4 | 12.9 | 6.6 | 7 | 5 | 6 | 45.1 | ||||
2Q '14 | 18.2 | 12.9 | 7 | 7.2 | 4.5 | 5.3 | 44.9 | ||||
3Q '14 | 18.2 | 12.4 | 7.5 | 7.1 | 5 | 49.6 | |||||
4Q '14 | 16.6 | 13.2 | 7.6 | 7.7 | 4.3 | 4.3 | 46.4 | ||||
1Q '15 | 17.4 | 13.1 | 9.3 | 8.1 | 5.3 | 46.7 | |||||
2Q '15 | 17 | 12.5 | 9.3 | 8.2 | 4.4 | 48.6 | |||||
3Q '15 | 16.3 | 12.5 | 10 | 8.5 | 4 | 5 | 43.7 | ||||
4Q '15 | 14.4 | 12.8 | 9.7 | 8.6 | 3 | 4 | 4 | 43.5 | |||
1Q '16 | 17.4 | 13.8 | 12.4 | 10 | 4.6 | 41.8 | |||||
2Q '16 | 16.3 | 13 | 12.1 | 9.8 | 4.2 | 44.5 | |||||
3Q '16 | 15 | 12 | 12 | 9 | 4 | 48 | |||||
4Q '16 | 13.7 | 12.3 | 11.1 | 9.5 | 4.7 | 48.7 | |||||
2Q '17 | 15.9 | 12.6 | 14 | 10.6 | 4.6 | 42.1 | |||||
1Q '18 | 16.43 | 11.54 | 13.89 | 10.82 | 5.05 | 42.29 |