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NASDAQ:CIEN 29 December 2025 - 29 March 2026

Ciena Corporation Stock Swings After Insider Sale Filing as AI Networking Boom Gets Tested

Ciena Corporation Stock Swings After Insider Sale Filing as AI Networking Boom Gets Tested

Ciena shares rose 3.5% to $401.61 Friday after a Form 144 filing showed Blue Planet head Joe Cumello plans to sell 1,773 shares. The filing follows record Q1 revenue of $1.43 billion and a raised 2026 sales outlook. Cumello previously sold 11,929 shares in January for $2.74 million. Ciena’s stock has swung sharply this week, hitting a high of $446.89 and a low of $387.40.
29 March 2026
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Corning stock slides after Broadcom warns AI racks will stick with copper longer

Corning stock slides after Broadcom warns AI racks will stick with copper longer

Corning shares dropped 4.4% Thursday after Broadcom CEO Hock Tan said customers will stick with copper, not optical links, inside AI racks for now. Corning CFO Ed Schlesinger warned of a slower “scale-up” for AI networking, pointing to a possible inflection closer to 2028. Broadcom stock rose 5.3%, while Ciena fell 15.2%. Analysts see co-packaged optics adoption delayed by at least two years.
5 March 2026
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Ciena stock jumps about 6% as tech rebounds; CIEN traders eye March catalyst

Ciena stock jumps about 6% as tech rebounds; CIEN traders eye March catalyst

Ciena Corp shares rose about 6% to $267.26 by early afternoon Monday after an earlier drop, rebounding alongside other networking stocks like Corning and Nokia. The move followed analyst upgrades and news of new fiber projects in the Balkans. Wall Street’s tech sector gains came as metals prices fell sharply. Investors are watching for updates at the Mobile World Congress in early March.
2 February 2026
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Ciena stock tumbles 14% as AI-networking names retreat — what investors watch next

Ciena stock tumbles 14% as AI-networking names retreat — what investors watch next

Ciena shares fell 14% to $222.73 Thursday after an early spike to $260, with about 2.8 million shares traded by early afternoon. Lumentum dropped 11% and Coherent 9% as tech stocks slid ahead of Friday’s U.S. jobs report. CEO Gary Smith sold 83,552 shares on Jan. 5 at an average $229.44. Ciena will present at the Needham Growth Conference on Jan. 13.
8 January 2026
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Lumentum stock slides 8% as optics peers stumble; investors eye February earnings update

Lumentum stock slides 8% as optics peers stumble; investors eye February earnings update

Lumentum Holdings shares dropped 7.6% to $356.69 Monday afternoon, leading declines among optical networking stocks as Coherent, Ciena, and Applied Optoelectronics also fell. The selloff followed a sharp rally that brought Lumentum near its December peak, with trading volume at 4.9 million shares by 3:24 p.m. EST. Investors are watching upcoming earnings and industry events for signs of continued AI-driven demand.
5 January 2026
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Lumentum stock rises 4% as AI data‑center optics rally kicks off 2026

Lumentum stock rises 4% as AI data‑center optics rally kicks off 2026

Lumentum shares climbed 4.3% to $384.31 Friday afternoon, outperforming the broader market as optical and AI hardware stocks rallied. The stock traded between $374.87 and $391.92 during the session. Sector peers Coherent and Ciena also posted gains. Traders are watching for upcoming U.S. jobs and inflation data next week.
2 January 2026
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AAOI stock jumps 13% today as AI optics names rally and short interest stays high

AAOI stock jumps 13% today as AI optics names rally and short interest stays high

Applied Optoelectronics shares jumped 13% to $39.55 in midday trading Friday, following a previous close of $34.86. Short interest stands at 12.7 million shares, about one-fifth of the float, raising short squeeze risk. The company last forecast Q4 revenue of $125 million to $140 million and reported its first major 800G transceiver order in December. Next earnings are expected Feb. 25.
2 January 2026
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Lumentum stock tumbles as year-end tech pullback hits AI optics names

Lumentum stock tumbles as year-end tech pullback hits AI optics names

Lumentum Holdings shares fell 4.1% to $374.87 by midday Monday, outpacing declines in tech benchmarks and optical peers. The stock swung between $390 and $364.50, retreating from last week’s 52-week high. Coherent and Ciena also dropped, but by less than Lumentum. Investors trimmed exposure to AI-linked names ahead of the New Year, with trading volumes thin and markets watching Fed minutes and jobless claims.
29 December 2025
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Stock Market Today

  • Twilio, Toast, and Flywire Stocks Surge as Nasdaq Rallies on U.S.-Iran De-escalation
    April 8, 2026, 11:14 PM EDT. Shares of Twilio, Toast, and Flywire jumped after the Nasdaq climbed on news of reduced U.S.-Iran tensions. The ceasefire eased market volatility, encouraging investors to move from defensive to high-growth tech stocks. Software companies benefited from the improved outlook, supported by fading energy inflation fears that lower pressure on interest rates which often drag on tech valuations. Twilio's shares remain volatile with frequent large swings, still close to a 52-week high despite being down 1.5% year-to-date. Recent sector jitters arose from AI concerns and Middle East uncertainties, but the latest rally highlights investor confidence returning to growth-oriented assets amid calmer geopolitical conditions.

Latest article

Why IREN Stock Is Back in Focus as AI Ambitions Meet Funding Fears

Why IREN Stock Is Back in Focus as AI Ambitions Meet Funding Fears

8 April 2026
IREN shares rose 1.8% to $35.74 Wednesday as investors assessed its $6 billion share program and shift from bitcoin mining to AI cloud services. The company’s revenue fell to $184.7 million last quarter, with a net loss of $155.4 million. IREN recently announced a five-year, $9.7 billion AI cloud deal with Microsoft. Options trading volume hit 103,000 contracts Tuesday, with sentiment described as mixed.
Amazon Stock Could Jump 50% as Wall Street Reconsiders Its $200 Billion AI Bet

Amazon Stock Could Jump 50% as Wall Street Reconsiders Its $200 Billion AI Bet

8 April 2026
Amazon closed at $213.77 Tuesday, with BNP Paribas maintaining a $320 price target, citing strong AI demand despite Amazon’s planned $200 billion capex for 2026. The company’s February forecast of higher spending sent shares down 11.5% after hours, even as AWS revenue rose 24% to $35.6 billion in the December quarter. Alphabet and Microsoft are also ramping up AI infrastructure spending.
Sensex Soars 2,946 Points, Nifty Near 24,000 After Iran Ceasefire and RBI Pause

Sensex Soars 2,946 Points, Nifty Near 24,000 After Iran Ceasefire and RBI Pause

8 April 2026
The Sensex surged 2,946 points to 77,562.90 on Wednesday, its best day in five years, as a U.S.-Iran ceasefire and steady RBI rates pushed Indian markets higher. Brent crude fell 14.4% to $93.49 a barrel, easing pressure on the rupee, which rose 0.5% to 92.58 per dollar. All 16 major sectors gained, led by financials and auto stocks. The RBI kept its repo rate at 5.25% and forecast slower growth ahead.
Netflix Stock Draws Fresh Institutional Buying Ahead of Earnings After Goldman Upgrade

Netflix Stock Draws Fresh Institutional Buying Ahead of Earnings After Goldman Upgrade

8 April 2026
Stock Yards Bank & Trust Co. increased its Netflix stake by 1,141.9% to 29,074 shares in Q4, while Ethos Capital Management disclosed a new 19,610-share position worth $1.84 million. The moves come ahead of Netflix’s April 16 earnings report and follow a Goldman Sachs upgrade to Buy with a $120 target. Insiders Reed Hastings and Greg Peters sold shares earlier this year under preset trading plans. Netflix last traded at $98.82.
Alphabet Stock (GOOG, GOOGL) Faces Split Fund Bets Ahead of Earnings After Fresh 13F Reports

Alphabet Stock (GOOG, GOOGL) Faces Split Fund Bets Ahead of Earnings After Fresh 13F Reports

8 April 2026
Zevenbergen Capital increased its Alphabet Class A share holdings by 27.4% in Q4, while Lombard Odier and Empirical Wealth Management reduced their Class C positions, according to April 7 filings. Alphabet will report first-quarter results on April 29. GOOG and GOOGL traded near $304 before Wednesday’s U.S. open. The filings reflect holdings as of December 31 and may not show current positions.
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