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Updated: May 4, 2026
Paul Silverstein's Stock Ratings
TD Cowen Analyst
Paul Silverstein is an analyst at TD Cowen. Analyst ratings are quantitative and qualitative analysis of a stock by Wall Street stock rating analysts. Stock ratings consist of expected future growth, current stock valuation and macroeconomic trends.
Overall Average Return
8.79%
Smart Score
Overall Average Return Percentile
56th
Number of Ratings
34
| Buy Now | Get Alert | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 04/21/2023 | CALX | Buy Now | Calix | $43.53 | 81.48% | $78 → $79 | Maintains | Outperform | Get Alert | |
| 04/20/2023 | FFIV | Buy Now | F5 | $323.20 | -47.4% | $177 → $170 | Maintains | Outperform | Get Alert | |
| 04/19/2023 | ERIC | Buy Now | Telefonaktiebolaget L M | $11.70 | -40.18% | $8 → $7 | Maintains | Outperform | Get Alert | |
| 02/22/2023 | ADTN | Buy Now | Adtran | $18.46 | 67.93% | $34 → $31 | Maintains | Outperform | Get Alert | |
| 02/16/2023 | CSCO | Buy Now | Cisco Systems | $91.74 | -30.24% | $61 → $64 | Maintains | Outperform | Get Alert | |
| 02/14/2023 | ANET | Buy Now | Arista Networks | $174.07 | 29.26% | $212 → $225 | Maintains | Outperform | Get Alert | |
| 02/09/2023 | COHR | Buy Now | Coherent | $331.20 | -73.73% | $95 → $87 | Maintains | Outperform | Get Alert | |
| 02/03/2023 | CLFD | Buy Now | Clearfield | $29.43 | 287.36% | $141 → $114 | Maintains | Outperform | Get Alert | |
| 01/25/2023 | FFIV | Buy Now | F5 | $323.20 | -45.24% | $187 → $177 | Maintains | Outperform | Get Alert | |
| 01/23/2023 | ERIC | Buy Now | Telefonaktiebolaget L M | $11.70 | -31.64% | $10 → $8 | Maintains | Outperform | Get Alert | |
| 01/17/2023 | ERIC | Buy Now | Telefonaktiebolaget L M | $11.70 | -14.55% | $8 → $10 | Maintains | Outperform | Get Alert | |
| 01/04/2023 | CLFD | Buy Now | Clearfield | $29.43 | 379.1% | → $141 | Initiates | → Outperform | Get Alert | |
| 12/19/2022 | DZSI | Buy Now | DZS | — | — | → $25 | Initiates | → Outperform | Get Alert | |
| 12/13/2022 | ANET | Buy Now | Arista Networks | $174.07 | 21.79% | $203 → $212 | Maintains | Outperform | Get Alert | |
| 11/17/2022 | CSCO | Buy Now | Cisco Systems | $91.74 | -33.51% | $60 → $61 | Maintains | Outperform | Get Alert | |
| 11/01/2022 | ANET | Buy Now | Arista Networks | $174.07 | 16.62% | $163 → $203 | Maintains | Outperform | Get Alert | |
| 10/21/2022 | ERIC | Buy Now | Telefonaktiebolaget L M | $11.70 | -31.64% | $11 → $8 | Maintains | Outperform | Get Alert | |
| 09/02/2022 | CIEN | Buy Now | Ciena | $537.00 | -86.78% | $82 → $71 | Maintains | Outperform | Get Alert | |
| 08/18/2022 | CSCO | Buy Now | Cisco Systems | $91.74 | -34.6% | $58 → $60 | Maintains | Outperform | Get Alert | |
| 08/12/2022 | RKLY | Buy Now | Rockley Photonics Hldgs | — | — | $21 → $14 | Maintains | Outperform | Get Alert | |
| 08/02/2022 | ANET | Buy Now | Arista Networks | $174.07 | -6.36% | $154 → $163 | Maintains | Outperform | Get Alert | |
| 07/27/2022 | CALX | Buy Now | Calix | $43.53 | 63.11% | $48 → $71 | Maintains | Outperform | Get Alert | |
| 07/26/2022 | FFIV | Buy Now | F5 | $323.20 | -35.64% | $212 → $208 | Maintains | Outperform | Get Alert | |
| 06/06/2022 | CIEN | Buy Now | Ciena | $537.00 | -84.73% | $96 → $82 | Maintains | Outperform | Get Alert | |
| 02/17/2022 | CSCO | Buy Now | Cisco Systems | $91.74 | -28.06% | $61 → $66 | Maintains | Outperform | Get Alert | |
| 02/14/2022 | CSCO | Buy Now | Cisco Systems | $91.74 | -33.51% | $64 → $61 | Maintains | Outperform | Get Alert | |
| 09/09/2021 | RKLY | Buy Now | Rockley Photonics Hldgs | — | — | → $22 | Initiates | → Outperform | Get Alert | |
| 08/06/2021 | ADTN | Buy Now | Adtran | $18.46 | 57.1% | → $29 | Upgrade | Market Perform → Outperform | Get Alert | |
| 07/30/2021 | NOK | Buy Now | Nokia | $13.34 | -40.03% | $5 → $8 | Upgrade | Market Perform → Outperform | Get Alert | |
| 05/26/2021 | EMKR | Buy Now | EMCORE | — | — | → $16 | Initiates | → Outperform | Get Alert | |
| 02/10/2021 | IIVI | Buy Now | II-VI | — | — | $86 → $124 | Maintains | Outperform | Get Alert | |
| 02/05/2021 | MSI | Buy Now | Motorola Solns | $435.90 | -50.45% | $183 → $216 | Maintains | Outperform | Get Alert | |
| 06/01/2020 | CIEN | Buy Now | Ciena | $537.00 | -87.15% | $58 → $69 | Maintains | Outperform | Get Alert | |
| 12/20/2019 | FFIV | Buy Now | F5 | $323.20 | -47.71% | $185 → $169 | Maintains | Outperform | Get Alert |
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