Geopolitics Alpha

Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers

Published . Updated .

Investors are looking further down the AI data-center supply chain for signs of demand amid concerns of a spending slowdown, one expert says.

Directly affected

  • COHR Coherent

    Named in this report.

  • LITE LUMENTUM HOLDINGS INC

    The reported development directly names LUMENTUM HOLDINGS INC in the headline; GA resolved that company to LITE.

Indirectly affected

  • SUPX SUPERX AI TECHNOLOGY LTD

    GA selected SUPX as a RELATED security because its canonical security name directly matches this event's themes: technology, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

  • MEDS DATAMEDS AI, INC. COMMON STOCK

    GA selected MEDS as a RELATED security because its canonical security name directly matches this event's themes: stocks, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

  • ABAT AMERICAN BATTERY TECHNOLOGY

    GA selected ABAT as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

  • ACM AECOM TECHNOLOGY CORP

    GA selected ACM as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

  • AOSL ALPHA & OMEGA SEMICONDUCTOR LT SHS

    GA selected AOSL as a RELATED security because its canonical security name directly matches this event's themes: semiconductor. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

  • AQN Algonquin Power & Utilities Corp

    GA selected AQN as a RELATED security because its canonical security name directly matches this event's themes: power. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article.

Price reaction, T-5 to T+3

TickerT-5T-3T-1T0T+1T+2T+3
COHR———————
LITE———————
SUPX———————
MEDS———————
ABAT———————
ACM———————
AOSL———————
AQN———————

How far Coherent (COHR) has moved since 16 Sep 2026

Since the first closing price after “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” Coherent (COHR) is -21.64%. The S&P 500 fund (SPY) is +0.52% over the same days, a -22.16% difference versus the market.

COHR
SPY

Disclosure records for Coherent (COHR) within two months of 16 Sep 2026

Public disclosure filings, not a recommendation. The filing link is the source document. News use of these reports still sits under 5 U.S.C. § 13107(c).

Who gains and who loses around Coherent (COHR)

Companies carried with this story

  • COHR Coherent

    Coherent (COHR) is linked, with no stored direction, high confidence in the 16 Sep 2026 story “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers.” Reason on file: The reported development directly names COHERENT CORP in the headline; GA resolved that company to COHR

  • LITE Lumentum Holdings

    In “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” Lumentum Holdings (LITE) is linked, with no stored direction, high confidence. Reason on file: The reported development directly names LUMENTUM HOLDINGS INC in the headline; GA resolved that company to LITE

  • SUPX SuperX AI Technology

    SuperX AI Technology (SUPX) is linked, with no stored direction, medium confidence in the 16 Sep 2026 story “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers.” Reason on file: GA selected SUPX as a RELATED security because its canonical security name directly matches this event's themes: technology, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

  • MEDS DataMeds AI

    In “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” DataMeds AI (MEDS) is linked, with no stored direction, medium confidence. Reason on file: GA selected MEDS as a RELATED security because its canonical security name directly matches this event's themes: stocks, ai. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

  • ABAT American Battery Technology

    In “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” American Battery Technology (ABAT) is linked, with no stored direction, medium confidence. Reason on file: GA selected ABAT as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

  • ACM Aecom

    Aecom (ACM) is linked, with no stored direction, medium confidence in the 16 Sep 2026 story “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers.” Reason on file: GA selected ACM as a RELATED security because its canonical security name directly matches this event's themes: technology. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

  • AOSL Alpha & Omega Semiconductor

    For “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” Alpha & Omega Semiconductor (AOSL) is linked, with no stored direction, medium confidence. Reason on file: GA selected AOSL as a RELATED security because its canonical security name directly matches this event's themes: semiconductor. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

  • AQN Algonquin Power & Utilities

    In “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” Algonquin Power & Utilities (AQN) is linked, with no stored direction, medium confidence. Reason on file: GA selected AQN as a RELATED security because its canonical security name directly matches this event's themes: power. This is an explainable DERIVED market relationship, not a claim that the security was named in the source article

Coherent (COHR)

Coherent (COHR) is the company in “Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers,” the 16 Sep 2026 this story story.

For Coherent (COHR), the reason on file says The reported development directly names COHERENT CORP in the headline; GA resolved that company to COHR

Lumentum Holdings (LITE) is here too. Its reason reads: The reported development directly names LUMENTUM HOLDINGS INC in the headline; GA resolved that company to LITE

Dates and price levels for Coherent (COHR)

COHR traded between 231.60 and 341.47 across 20 sessions. The latest close on file is 231.87. LITE traded between 800.32 and 1142.27 across 20 sessions. The latest close on file is 834.97. SUPX traded between 6.15 and 7.09 across 10 sessions. The latest close on file is 6.72.

How strong the case is around Coherent (COHR)

100 out of 100

“Why optical stocks Lumentum and Coherent were the day’s biggest S&P 500 gainers” scores 100 out of 100. The score uses 8 linked companies.