As of March 25, 2026

The Advanced Photonics and Semiconductor Components sector is showing strong bullish momentum, led by a massive surge in $SIVE. This follows major photonics wins in the AI and LiDAR markets, including a partnership to develop Co-Packaged Optics for AI datacenters (simplywall.st/stocks/se…).

The broader market narrative is driven by an accelerating supercycle in AI infrastructure and high-performance computing demand. Investors are exhibiting high confidence across the sector, heavily rewarding companies positioned in silicon photonics, advanced packaging, and high-speed optical connectivity as traditional copper bandwidth limits are breached in AI server clusters.

$SIVE: 17.82%

$IQE: 14.48%

$LWLG: 12.79%

$SOI: 6.15%

$MRVL: 4.39%

$TSEM: 4.34%

$POET: 3.48%

$FPLSF: 3.44%

$GLW: 2.94%

$ALMU: 2.23%

$AEHR: 1.56%

$GFS: 1.48%

$NDX: 1.10%

$SPX: 0.68%

$FORM: 0.60%

$CIEN: 0.42%

$KEYS: 0.41%

$FN: 0.31%

$BESIY: 0.19%

$COHR: -2.19%

$LITE: -2.83%

$AAOI: -3.26%

$AXTI: -4.63%

1. Silicon Photonics & Optical Subsystems

$SIVE, $LWLG, $POET, $ALMU: These companies are driving the next generation of integrated photonics to solve critical bandwidth bottlenecks in AI data centers.

$COHR, $LITE, $AAOI: Legacy optical transceiver and component players currently facing near-term headwinds or rotational pressure despite the sector's overall strength.

2. Specialty Semiconductor Materials & Foundries

$IQE, $SOI, $TSEM, $GFS: Providing the specialized wafers, silicon-on-insulator technology, and foundry services essential for fabricating high-frequency RF and photonic chips.

$AXTI, $FPLSF: Supplying critical substrate materials and performance chemicals required for advanced electronics and optoelectronics.

3. Networking Infrastructure & Manufacturing

$MRVL, $GLW, $CIEN: The backbone of data center connectivity, offering custom AI networking silicon, physical fiber optics, and optical transport systems.

$FN: Serving as the premier outsourced manufacturing partner for complex optical and electro-mechanical equipment.

4. Semi-Cap Equipment & Testing

$AEHR, $FORM, $BESIY: Delivering crucial advanced packaging equipment, probe cards, and burn-in testing to ensure semiconductor reliability at scale.

$KEYS: A strategic necessity for network validation, providing test and measurement solutions for high-speed AI connectivity.