Last refreshed: July 21, 2026 (US ET)
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CIEN

Growth

CIENA CORP

Information Technology·Communications Equipment

Ciena Corporation, a network technology company, provides hardware, software, and services for various network operators in the Americas, Europe, the Middle East, Africa, the Asia Pacific, Japan, and India. It operates through Networking Platforms, Platform Software and Services, Blue Planet Automation Software and Services, and Global Services segments. The Networking Platforms segment consists optical networking, routing, and switching products and services.

Close · 3M

+18.91%

CIEN · 3M

+18.91%

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Held by 4 AI ETFs

AMOM1.720%

as of Jul 17

AIVL0.889%

as of Jul 17

PQUS0.170%

as of Jul 21

QRFT0.140%

as of Jul 8

Signal performance

Each tracked ETF's moves on this stock, grouped by fund. Returns are measured from the signal date to the latest close — hypothetical, no commissions or slippage.

Buy signals15
Win rate0% (0/15)
Avg buy return-19.42%
AMOMnow 1.720% of fund12 signals

AMOM · Weight decrease · 6d

Qraft Technologies’ AMOM, designed to pick names expected to extend their runs through its multi-signal momentum composite, has been steadily reducing its exposure to CIENA CORP. Given the ETF's weekly rebalance schedule and focus on conviction within its concentrated ~50 US large-cap basket, this sustained weight decrease over several days suggests a deterioration across its momentum and alternative-data signals for CIEN. The stock’s significant -30.1% return over the past 30 days likely triggered the algorithmic adjustment, signaling a clear break in the prior upward trend. This strategic reduction indicates that CIEN no longer aligns with AMOM's criteria for continued positive momentum, despite its prior 1-year return of +367.3%.

weight 2.020% → 1.720% (-0.300 pp)·stock down 13.0% in the 30 days before

Jul 17·entry $374.41·now $378.77

+1.16%
since Jul 17

AMOM · Weight decrease · 5d

The consecutive weight decrease observed in CIENA, falling from 2.01% to 1.79% over several days, indicates a systematic de-risking by AMOM after a brief peak. This gradual reduction aligns with Qraft Technologies’ multi-signal momentum composite, which prioritizes names expected to *extend* their runs rather than simply holding top performers. With CIEN's price dropping 30.1% in the last 30 days and now sitting at 60% of its 52-week high, the algorithm likely detected a deterioration in price trends and other alternative-data signals. This move by the concentrated momentum sleeve suggests a loss of conviction in the stock's ability to maintain its upward trajectory after an extended 367.3% one-year return, prompting a tactical reduction in exposure during its weekly rebalance.

weight 2.020% → 1.790% (-0.230 pp)·stock down 16.1% in the 30 days before

Jul 16·entry $388.81·now $378.77

-2.58%
since Jul 16

AMOM · Weight decrease · 4d

Qraft Technologies' AMOM fund, which employs a multi-signal momentum composite to identify US large caps expected to extend their runs, consistently reduced its allocation to CIEN over several days. Given AMOM's concentrated momentum sleeve of approximately 50 stocks and weekly rebalancing, this pattern signals that its algorithms no longer perceive CIEN as a candidate for continued upward momentum. This divestment is likely driven by CIEN's recent price performance, specifically its -33.3% return over the last 30 days, which contradicts the fund's strategy of holding names poised for further gains. Coupled with CIEN's high PER of 147.54, the AI-managed system appears to be decreasing exposure as momentum signals weaken, moving away from a stock that had delivered a significant 1-year return of +426.2%.

weight 2.020% → 1.870% (-0.150 pp)·stock down 6.2% in the 30 days before

Jul 15·entry $418.46·now $378.77

-9.48%
since Jul 15

AMOM · Weight decrease · 3d

The fund's consecutive weight decrease in CIEN, moving from 2.02% to 1.94% over several days, reflects a measured rather than abrupt reduction in exposure. This gradual scaling back suggests AMOM's multi-signal momentum composite has detected a weakening in CIEN's run, particularly following its -21.5% 30-day return from a peak near its $627.00 52-week high. Despite CIEN's 30.59% revenue growth and considerable 1-year return, the Qraft Technologies' method prioritizes names expected to extend their upward trends. The persistent reduction indicates that CIEN, trading at $446.93, is no longer presenting the momentum characteristics signaling further price extension, leading the concentrated momentum sleeve to adjust its holding.

weight 2.020% → 1.940% (-0.080 pp)·stock up 0.4% in the 30 days before

Jul 14·entry $446.93·now $378.77

-15.25%
since Jul 14

AMOM · Weight decrease · 2d

The AMOM ETF has gradually trimmed its CIEN position from 2.02% to 1.98% over consecutive rebalance periods, coinciding with CIEN's recent 23.2% 30-day price decline and its current valuation at $445.44, 71% below its 52-week peak. This measured, two-step reduction aligns with Qraft Technologies' multi-signal momentum composite, which aims to identify names expected to extend their upward runs rather than mechanically holding top performers. The significant short-term price retraction, despite a 1-year return of 447.7%, likely triggered AMOM's proprietary models to reduce conviction in CIEN’s immediate positive trend extension, especially for a stock priced at a PER of 147.54 and PBR of 9.79. For a concentrated momentum sleeve with weekly rebalancing, even these small, consecutive weight decreases reflect the AI's detection that the positive momentum across its various signals is no longer strong enough to justify its earlier, higher allocation within the 50-stock basket.

weight 2.020% → 1.980% (-0.040 pp)·stock up 2.5% in the 30 days before

Jul 13·entry $445.44·now $378.77

-14.97%
since Jul 13

AMOM · Accumulation · 5d

Qraft Technologies' AMOM fund, driven by its multi-signal momentum composite, appears to be interpreting CIENA CORP's recent price action as a potential continuation opportunity despite a short-term dip. The gradual accumulation from 1.8200% to 2.0200% over several trading days suggests a measured increase in conviction, reflecting the fund's design where position changes carry weight given its concentrated portfolio of roughly 50 US large caps. This move follows CIENA CORP's substantial 1-year return of +461.0%, indicating strong prior price trends, while the company also exhibits fundamental momentum through its 30.59% revenue growth. Even with a 30-day return showing a -19.2% pullback from its highs, the fund's analysis likely identifies underlying signals for the stock to extend its longer-term trajectory, aligning with its weekly rebalancing capability to capture such shifts.

weight 1.820% → 2.020% (+0.200 pp)·stock down 0.9% in the 30 days before

Jul 9·entry $462.34·now $378.77Fresh

-18.08%
since Jul 9

AMOM · Accumulation · 5d

AMOM's recent gradual accumulation of CIEN, increasing its weight from 1.81% to 1.90% over several trading days, reflects the Qraft Technologies multi-signal strategy responding to a specific market dynamic. While CIEN experienced a significant -26.1% decline over the past 30 days, its 475.1% one-year return and 30.59% revenue growth likely signaled enduring underlying momentum within the ETF’s composite model. The fund's method, which seeks names expected to extend their strong performance, appears to view the current $433.83 price, following the pullback from its 52-week high, as an opportunity. This measured addition, in a concentrated momentum sleeve rebalancing weekly, indicates conviction in CIEN's potential to continue its run after a correction, rather than a mechanical chase of peak pricing.

weight 1.810% → 1.900% (+0.090 pp)·stock down 30.1% in the 30 days before

Jul 6·entry $433.83·now $378.77Fresh

-12.69%
since Jul 6

AMOM · Accumulation · 5d

CIEN displays a PER of 145.44 and a PBR of 9.79, indicative of a growth stock, supported by a 30.59% Revenue Growth and 15.65% ROE. This blend of strong fundamental momentum and growth potential aligns with Qraft Technologies' multi-signal composite method, which targets names expected to extend their runs rather than mechanically holding top performers. The gradual accumulation observed in AMOM's weighting for CIEN, across the period from June 23rd to July 2nd, directly follows the stock's 30-day return of -23.8%. Despite this recent decline from a 52-week high, CIEN's 90-day return of +23.3% and 1-year return of +466.8% suggest that AMOM is capitalizing on a short-term price correction in a stock with demonstrated longer-term price trends and fundamental strength, fitting its concentrated momentum sleeve.

weight 1.790% → 1.880% (+0.090 pp)·stock down 32.6% in the 30 days before

Jul 2·entry $422.46·now $378.77Fresh

-10.34%
since Jul 2

AMOM · Accumulation · 5d

At $422.46, CIENA CORP currently trades at 67% of its 52-week high, having registered a -23.8% return over the past 30 days, albeit within a +466.8% 1-year climb. This recent price retrace likely presented an opportunity for Qraft Technologies' AMOM, an ETF designed to identify names expected to extend their runs based on a multi-signal momentum composite. The gradual accumulation from 1.71% to 1.88% within the ETF’s concentrated momentum sleeve suggests that CIEN's 30.59% revenue growth and 15.65% return on equity, alongside other signals, triggered this increased conviction. Following the initial accumulation, the fund's weighting settling around 1.81-1.83% indicates the AI manager's continued assessment found the stock's overall momentum profile, factoring in price trends and fundamental strength, warranted maintaining this elevated position.

weight 1.710% → 1.810% (+0.100 pp)·stock down 18.8% in the 30 days before

Jul 1·entry $462.44·now $378.77Fresh

-18.09%
since Jul 1

AMOM · Accumulation · 6d

stock down 15.5% in the 30 days before

Jun 30·entry $490.56·now $378.77Fresh

-22.79%
since Jun 30

AMOM · Accumulation · 5d

stock down 16.0% in the 30 days before

Jun 29·entry $478.93·now $378.77Fresh

-20.91%
since Jun 29

AMOM · Accumulation · 6d

stock down 17.6% in the 30 days before

Jun 26·entry $479.50·now $378.77Fresh

-21.01%
since Jun 26
AIVLnow 0.889% of fund8 signals

AIVL · Weight decrease · 3d

AIVL, which employs AI to identify genuine value within its approximately 100 US value stock portfolio, initiated a series of weight reductions for CIENA CORP during its periodic rebalancing. The fund's AI, tasked with scrutinizing fundamental and valuation metrics like P/E and P/B to distinguish true value from value traps, would likely find CIENA CORP's extremely high PER of 120.92 and PBR of 9.79 inconsistent with its core value profile. Despite CIENA CORP’s substantial 1-year return of +367.3%, a recent 30-day price decline of -30.1% likely triggered a reassessment within the AI's model regarding the stock's current fit for a value-tilted universe. This sustained decrease in weight from 1.0007% to 0.8890% indicates the AI's system is systematically reducing exposure as the stock no longer aligns with AIVL's value-factor criteria.

weight 1.071% → 0.889% (-0.182 pp)·stock down 13.0% in the 30 days before

Jul 17·entry $374.41·now $378.77

+1.16%
since Jul 17

AIVL · Weight decrease · 2d

CIEN's PER of 120.92 and PBR of 9.79 present a valuation profile that significantly deviates from a traditional value-factor investment, even for AIVL which applies AI to distinguish genuine value from value traps. While its 30.59% revenue growth and 15.65% ROE might suggest growth characteristics, the AI employed by WisdomTree for AIVL, tasked with identifying true value within a value-tilted universe, would increasingly scrutinize such elevated valuation metrics. The consecutive decrease in CIEN's weight within AIVL from 1.0007% on July 15th to 0.9169% on July 16th, following an earlier general decline from July 10th, aligns with the stock's recent 30-day return of -30.1%. As CIEN's price declined sharply, falling to 60% of its 52-week peak, the AI's assessment of its valuation metrics (P/E, P/B, FCF yield) likely deteriorated relative to its internal value thresholds, signaling an increased risk of a value trap despite the lower absolute price.

weight 1.071% → 0.917% (-0.154 pp)·stock down 16.1% in the 30 days before

Jul 16·entry $388.81·now $378.77

-2.58%
since Jul 16

AIVL · Weight decrease · 2d

CIEN's stock, at $446.93, has recently experienced a 30-day decline of -21.5% after a significant one-year surge of +457.9%, placing it at 71% of its 52-week high. AIVL, which leverages AI to score stocks based on fundamentals and valuation metrics, likely identified CIEN as less aligned with its value criteria. Despite 30.59% revenue growth and a 15.65% ROE, the extremely high P/E of 147.54 and P/B of 9.79, particularly after such a substantial price increase, likely triggered a re-evaluation by the AI. The fund's initial significant reduction of CIEN's weight from 2.4908% to around 1.0% and subsequent lower holding suggests the AI classified it as potentially overvalued relative to its earnings and other value factors within its pre-filtered US value-factor pool.

weight 1.106% → 1.062% (-0.044 pp)·stock up 2.5% in the 30 days before

Jul 13·entry $445.44·now $378.77

-14.97%
since Jul 13

AIVL · Weight increase · 2d

AIVL’s portfolio shows a distinct re-engagement with CIENA, shifting from a significant de-weighting earlier in July to two consecutive daily increases on July 8 and July 9, moving its allocation from 0.9966% to 1.1060%. This re-accumulation phase occurs as CIENA's price has pulled back by 19.2% over the last 30 days, placing it at $460.72, which is 73% of its 52-week peak. WisdomTree’s AI-driven method, tasked with distinguishing genuine value from value traps within a pre-filtered US value-factor pool, likely identified a more favorable entry point following this price correction. Despite CIENA's PER of 147.54 and PBR of 9.79, the AI's assessment of underlying fundamentals, including the 30.59% revenue growth and 15.65% ROE, appears to have driven the decision to increase exposure after the stock's recent price adjustment.

weight 0.997% → 1.106% (+0.109 pp)·stock down 0.9% in the 30 days before

Jul 9·entry $462.34·now $378.77Fresh

-18.08%
since Jul 9

AIVL · Weight decrease · 2d

The weight history for CIENA CORP shows a sharp, two-day reduction in AIVL, dropping from 2.6222% to 1.0095% on July 1st and 2nd. This decisive shift reflects the fund's AI-driven methodology in light of CIEN's current valuation at a $422.46 price point. The stock's PER of 145.44 and PBR of 9.79, coupled with its 466.8% return over one year, indicate a valuation far removed from a typical value-factor investment. AIVL's AI, utilizing fundamental and valuation metrics to distinguish genuine value within its US value-factor pool, likely determined that CIEN, despite its 30.59% revenue growth, no longer fit the criteria. The substantial reduction in allocation signals the system's reclassification of CIEN, moving it away from the fund's objective of avoiding value traps.

weight 2.622% → 1.010% (-1.613 pp)·stock down 32.6% in the 30 days before

Jul 2·entry $422.46·now $378.77

-10.34%
since Jul 2

AIVL · Accumulation · 5d

stock down 18.8% in the 30 days before

Jul 1·entry $462.44·now $378.77Fresh

-18.09%
since Jul 1

AIVL · Accumulation · 5d

stock down 15.5% in the 30 days before

Jun 30·entry $490.56·now $378.77Fresh

-22.79%
since Jun 30

AIVL · Weight increase · 4d

stock down 19.5% in the 30 days before

Jun 25·entry $484.69·now $378.77Fresh

-21.85%
since Jun 25
PQUSnow 0.170% of fund4 signals

PQUS · Weight decrease · 3d

CIENA CORP (CIEN) now trades at $374.41, positioned at 60% of its 52-week high after experiencing a 30-day return of -30.1%, a notable downturn despite a 1-year return of +367.3%. This specific setup, marked by recent price erosion following a period of strong gains, aligns with the AI ranking system employed by Pictet Asset Management's PQUS. As a US large-cap fund with measured turnover and periodic rebalances, PQUS's AI likely factored in CIEN’s elevated PER of 120.92 and PBR of 9.79, alongside its 30.59% revenue growth and 15.65% ROE, during a recent portfolio review. The consecutive weight decrease observed from July 15-19, moving from 0.2400% to 0.1700%, indicates the AI adjusted CIEN's allocation, possibly to manage risk within its sector-balance and concentration rules in response to the stock's rapid price depreciation.

weight 0.230% → 0.170% (-0.060 pp)·stock down 13.0% in the 30 days before

Jul 19·entry $378.77·now $378.77

0.00%
since Jul 19

PQUS · Weight decrease · 2d

Pictet Asset Management's AI ranking system for its US large-cap universe appears to be systematically de-emphasizing CIENA within the ETF's ~165 holdings. The AI's models are likely reacting to the stock's elevated valuation, evidenced by a PER of 120.92, even amidst a 30.59% revenue growth. This assessment, combined with CIENA's significant 30-day price decline of 30.1%, has likely triggered a measured reduction in conviction. The consecutive decrease in CIEN's weight from 0.2400% to 0.1800% across multiple days reflects the fund's periodic rebalance process acting on this updated ranking.

weight 0.230% → 0.180% (-0.050 pp)·stock down 13.0% in the 30 days before

Jul 18·entry $378.77·now $378.77

0.00%
since Jul 18

PQUS · Weight decrease · 2d

The AI ranking system employed by Pictet Asset Management for PQUS initiated a consecutive weight reduction in CIEN, moving from 0.3200% to 0.2300% across the periodic rebalance on July 9-10, 2026. This adjustment likely reflects a re-evaluation by the AI of the stock's elevated valuation within its US large-cap universe, as indicated by CIEN's current PER of 147.54. Despite a 1-year return of +467.2%, the recent -20.6% 30-day price correction, alongside a PBR of 9.79, could signal a shift in the AI's risk-reward assessment. Such decisive moves align with PQUS's measured turnover style and its AI's dynamic application of sector-balance and concentration rules across its portfolio of approximately 165 holdings.

weight 0.320% → 0.230% (-0.090 pp)·stock up 4.9% in the 30 days before

Jul 10·entry $460.72·now $378.77

-17.79%
since Jul 10

PQUS · Weight increase · 2d

stock down 19.5% in the 30 days before

Jun 25·entry $484.69·now $378.77Fresh

-21.85%
since Jun 25
LQAIno longer held5 signals

LQAI · Exit · 1d

CIEN’s weight in LQAI experienced a clear progressive scaling down, moving from approximately 0.75% to 0.68% over several trading days before a full removal to 0.00% on July 7th. This gradual reduction, rather than an abrupt exit, indicates that the Qraft AI’s ranking for CIENA Corp incrementally deteriorated. The decline in perceived quality likely began as the stock experienced a -28.2% return over 30 days, retreating from its 52-week high of $627.00 to trade at 67% of that level, even as its 1-year return remained high at +427.9%. For LQAI, which employs an AI-driven selection for core large-cap exposure without heavy factor tilts, the combination of a sharp recent price correction and a price-to-earnings ratio of 145.44 would signal increased risk and a less balanced profile than the algorithm favors, prompting the staged divestment in alignment with its weekly rebalance schedule.

weight 0.690% → 0 (exited)·stock down 21.8% in the 30 days before

Jul 7·entry $418.91·now $378.77

-9.58%
since Jul 7

LQAI · Weight decrease · 2d

Drawing from LQAI's weekly rebalancing schedule and its Qraft AI-driven ranking methodology for US large-cap core stocks, a clear shift in CIENA CORP's algorithmic standing is evident. The Qraft engine's consecutive weight reductions in CIEN, starting July 1st, suggest a re-evaluation of its attractiveness within the fund's approximately 100 holdings. This change likely reflects the stock's recent volatility, specifically its -23.8% 30-day return, which contrasts with its prior 1-year return of +466.8%. Despite the company's 30.59% revenue growth, the AI's algorithm appears to be de-prioritizing the stock, perhaps considering its high PER of 145.44 against current price trends.

weight 0.750% → 0.680% (-0.070 pp)·stock down 32.6% in the 30 days before

Jul 2·entry $422.46·now $378.77

-10.34%
since Jul 2

LQAI · Accumulation · 5d

stock down 15.5% in the 30 days before

Jun 30·entry $490.56·now $378.77Fresh

-22.79%
since Jun 30

LQAI · Accumulation · 5d

stock down 16.0% in the 30 days before

Jun 29·entry $478.93·now $378.77Fresh

-20.91%
since Jun 29

LQAI · Accumulation · 6d

stock down 17.6% in the 30 days before

Jun 26·entry $479.50·now $378.77Fresh

-21.01%
since Jun 26

Sell signals show what the stock did after the AI exited. A negative number means the AI's exit was well-timed.

Buffett-style framework

Too hard to callas of May 2

AI ETFs currently hold CIENA Corp in their portfolios, indicating a perceived opportunity or fit within their investment strategies. However, AIVL, a significant holder, shows a recent trend of decreasing its weight in the stock. This framework's verdict of 'Too Hard' suggests that a Buffett-style investor would not engage with the company due to its unpredictable nature, diverging from the AI ETFs' current active holdings, despite AIVL's selling trend.

  • Circle of CompetenceThe fast-evolving nature of networking technology and infrastructure makes ten-year cash flow predictability challenging, suggesting it falls outside the circle of competence.
  • Economic MoatNot assessed due to the business falling outside the circle of competence.
  • ManagementNot assessed due to the business falling outside the circle of competence.
  • Financial HealthNot assessed due to the business falling outside the circle of competence.
  • Margin of SafetyNot assessed due to the business falling outside the circle of competence.

CIENA Corp operates in the dynamic Information Technology sector, presenting significant challenges in projecting stable unit economics and long-term cash flows for a value-investing analysis. This inherent unpredictability leads to the conclusion that the company falls outside the circle of competence for this framework. Consequently, a comprehensive assessment of its economic moat, management quality, financial health, and margin of safety cannot be reliably conducted, rendering the company 'Too Hard' to evaluate.

Educational interpretation generated by AI applying frameworks Warren Buffett documented in his shareholder letters and other public writings. Not a statement by Mr. Buffett or Berkshire Hathaway, and not investment advice.