Ratings by Cowen (Paul Silverstein)

Date CompanySymbol Type Rating
(Past)
PT
(Past)
Start $
(End $)
% Chg. Details
6/6/2022 CIENA CIEN Maintain Outperform
(N/A)
 
 
  Details
5/16/2022 Rockley Photonics Holdings Ltd RKLY Maintain Outperform
(N/A)
 
 
  Details
5/12/2022 II-VI, Inc. IIVI Maintain Outperform
(N/A)
 
 
  Details
5/5/2022 EMCORE EMKR Maintain Outperform
(N/A)
 
 
  Details
4/27/2022 Calix CALX Maintain Outperform
(N/A)
 
 
  Details
4/27/2022 Juniper Networks JNPR Maintain Market Perform
(N/A)
 
 
  Details
3/9/2022 CIENA CIEN Maintain Outperform
(N/A)
 
 
  Details
2/28/2022 Applied Optoelectronics AAOI Maintain Outperform
(N/A)
 
 
  Details
2/22/2022 Ribbon Communications RBBN Maintain Market Perform
(N/A)
 
 
  Details
2/17/2022 Cisco CSCO Maintain Outperform
(N/A)
 
 
  Details
2/14/2022 Cisco CSCO Maintain Outperform
(N/A)
 
 
  Details
1/26/2022 F5 Networks FFIV Maintain Outperform
(N/A)
 
 
  Details
1/26/2022 Ericsson ERIC Maintain Outperform
(N/A)
 
 
  Details
12/13/2021 II-VI, Inc. IIVI Maintain Outperform
(N/A)
 
 
  Details
10/28/2021 Ribbon Communications RBBN Maintain Market Perform
(N/A)
 
 
  Details
10/20/2021 Ericsson ERIC Maintain Outperform
(N/A)
 
 
  Details
9/9/2021 Rockley Photonics Holdings Ltd RKLY New Coverage Outperform
(N/A)
9.38
(2.10)
-77.61% Details
8/6/2021 Applied Optoelectronics AAOI Maintain Outperform
(N/A)
 
 
  Details
8/6/2021 Motorola Solutions Inc. MSI Maintain Outperform
(N/A)
 
 
  Details
8/6/2021 ADTRAN ADTN Upgrade Outperform
(Market Perform)
21.70
(18.18)
-16.22% Details
8/4/2021 NeoPhotonics NPTN Maintain Outperform
(N/A)
 
 
  Details
8/3/2021 Arista Networks ANET Maintain Outperform
(N/A)
 
 
  Details
7/30/2021 Nokia NOK Upgrade Outperform
(Market Perform)
6.05
(4.66)
-22.98% Details
7/27/2021 F5 Networks FFIV Maintain Outperform
(N/A)
 
 
  Details
6/22/2021 Calix CALX Maintain Outperform
(N/A)
 
 
  Details
6/4/2021 CIENA CIEN Maintain Outperform
(N/A)
 
 
  Details
5/26/2021 EMCORE EMKR New Coverage Outperform
(N/A)
8.83
(3.09)
-65.01% Details
6/24/2020 CIENA CIEN Maintain Outperform
(N/A)
 
 
  Details
6/5/2020 CIENA CIEN Maintain Outperform
(Outperform)
 
 
  Details
5/28/2020 Plantronics PLT Maintain Outperform
(N/A)
 
 
  Details
2/11/2020 II-VI, Inc. IIVI Maintain Outperform
(N/A)
 
 
  Details
2/5/2020 Inphi Corp. IPHI Maintain Outperform
(N/A)
 
 
  Details
11/13/2019 II-VI, Inc. IIVI Maintain Outperform
(N/A)
 
 
  Details
11/12/2019 Inphi Corp. IPHI Maintain Outperform
(N/A)
 
 
  Details
11/12/2019 Inphi Corp. IPHI Maintain Outperform
(N/A)
 
 
  Details
10/30/2019 Inphi Corp. IPHI Maintain Outperform
(N/A)
 
 
  Details
10/23/2019 Calix CALX Maintain Outperform
(N/A)
 
 
  Details
8/14/2019 II-VI, Inc. IIVI Maintain Outperform
(N/A)
 
 
  Details
8/7/2019 Plantronics PLT Maintain Outperform
(N/A)
 
 
  Details
8/6/2019 NeoPhotonics NPTN Maintain Outperform
(N/A)
 
 
  Details
8/2/2019 Inphi Corp. IPHI Maintain Outperform
(N/A)
 
 
  Details
5/28/2019 Plantronics PLT New Coverage Outperform
(N/A)
44.87
(31.87)
-28.97% Details
11/8/2018 Applied Optoelectronics AAOI Maintain Outperform
(N/A)
 
 
  Details
11/6/2018 Calix CALX Upgrade Outperform
(Market Perform)
7.42
(34.96)
371.16% Details
10/18/2018 ADTRAN ADTN Maintain Market Perform
(N/A)
 
 
  Details
9/28/2018 Applied Optoelectronics AAOI Maintain Outperform
(N/A)
 
 
  Details