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GCT Semiconductor Holding vs Aeluma: GCTS and ALMU compared
GCT Semiconductor Holding is the larger company: $971K of revenue in its latest quarter (Q2 2026) against $582K for Aeluma (Q4 FY26). GCT Semiconductor Holding is growing faster (-18% against -56% a year earlier). Aeluma is more profitable, with an operating margin of -84.7% against -763.6%.
Where the money goes: GCTS and ALMU
GCT Semiconductor Holding (GCTS) · Q2 2026
GCT Semiconductor Holding, Q2 2026: revenue $971K (-18% year over year), operating margin -763.6%, net loss $20.4M, operating cash flow −$16.6M. The chart follows the revenue to costs, profit and cash.
Aeluma (ALMU) · Q4 FY26
Aeluma, Q4 FY26: revenue $582K (-56% year over year), operating margin -84.7%, net loss $4.0M, operating cash flow −$1.6M. The chart follows the revenue to costs, profit and cash.
| GCT Semiconductor Holding (GCTS) | Aeluma (ALMU) | |
|---|---|---|
| Latest quarter | Q2 2026 | Q4 FY26 |
| Revenue | $971K | $582K |
| Revenue growth, Y/Y | -18% | -56% |
| Operating margin | -763.6% | -84.7% |
| Net earnings | −$20.4M | −$4.0M |
| Net margin | — | -689.5% |
| Operating cash flow | −$16.6M | −$1.6M |
Where the revenue comes from
GCT Semiconductor Holding
- Service: $569K (59%)
- Product: $402K (41%)
Questions
Which is bigger, GCT Semiconductor Holding or Aeluma?
GCT Semiconductor Holding is the larger company: $971K of revenue in its latest quarter (Q2 2026) against $582K for Aeluma (Q4 FY26).
Is GCT Semiconductor Holding or Aeluma growing faster?
GCT Semiconductor Holding is growing faster (-18% against -56% a year earlier).
Which is more profitable, GCT Semiconductor Holding or Aeluma?
Aeluma is more profitable, with an operating margin of -84.7% against -763.6%.
More: GCT Semiconductor Holding earnings · how GCT Semiconductor Holding makes money · Aeluma earnings · how Aeluma makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Aug 10, 2026; 10-K filed Sep 16, 2026). Fiscal quarters can end on different dates. Not investment advice.