Attached files
file | filename |
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EX-23.1 - EXHIBIT 23.1 - CIENA CORP | a2017103110kex231pwcconsent.htm |
10-K - 10-K - CIENA CORP | a20171031financials.htm |
EX-32.2 - EXHIBIT 32.2 - CIENA CORP | a2017103110kex322.htm |
EX-32.1 - EXHIBIT 32.1 - CIENA CORP | a2017103110kex321.htm |
EX-31.2 - EXHIBIT 31.2 - CIENA CORP | a2017103110kex312.htm |
EX-31.1 - EXHIBIT 31.1 - CIENA CORP | a2017103110kex311.htm |
EX-21.1 - EXHIBIT 21.1 - CIENA CORP | a2017103110kex211.htm |
EX-10.5 - EXHIBIT 10.5 - CIENA CORP | ex105-formof2017msuagreeme.htm |
EXHIBIT 12.1
Statement of Computation of Ratio of Earnings to Fixed Charges | |||||||||||||
Year Ended October 31, | |||||||||||||
2017 | 2016 | 2015 | |||||||||||
Pre-tax earnings from continuing operations | $ | 156,126 | $ | 86,718 | $ | 23,764 | |||||||
Fixed charges: | |||||||||||||
Interest expense | 55,852 | 56,656 | 51,179 | ||||||||||
Portion of rental expense representative of interest factor | 10,202 | 8,788 | 8,491 | ||||||||||
Total fixed charges | 66,054 | 65,444 | 59,670 | ||||||||||
Pre-tax earnings from continuing operations plus fixed charges | $ | 222,180 | $ | 152,162 | $ | 83,434 | |||||||
Ratio of earnings to fixed charges | $ | 3.36 | $ | 2.33 | $ | 1.40 | |||||||