Citadel Securities no longer holds a public short position in Sivers Semiconductors

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Citadel Securities has reduced its short position in the semiconductor company Sivers Semiconductors to below 0.5% in just a few days, and is no longer a public short position investor in the company. This can be verified on the Swedish Financial Supervisory Authority’s short selling register.

Currently, there is only one public short seller in the company. Overall, 3.86% of the total market capitalization is currently shorted.

The Swedish Financial Supervisory Authority requires short positions of 0.1% or more to be reported, and short positions of 0.5% or more to be publicly disclosed.

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u/Difficult_Goal_9160 — 17 hours ago

More shorts

More shorts. Probably expecting earnings to be bad, but most people know aren't going to be the greatest. That revenue won't start coming in until 2027.

u/Difficult_Goal_9160 — 3 days ago

MTSI earnings transcript confirms Indium Phosphide (InP) laser shortage — what this means for SIVE & LITE

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Just saw a callout from MACOM’s ($MTSI) latest earnings call that worth highlighting if you're following silicon photonics and the AI optical supply chain.

CEO Stephen Daly specifically noted: "Customers are coming to us with urgency due to the general supply shortage of indium phosphide DFB lasers."

Why this is relevant:

Validation of the AI Bottleneck: As the industry scales toward 800G, 1.6T, and co-packaged optics (CPO), high-power continuous wave (CW) lasers and InP arrays are hitting a real structural supply-demand mismatch. MTSI explicitly using the word "urgency" shows buyers are scrambling for qualified capacity

Pricing Power for Pure-Plays: Companies with qualified InP / CW DFB laser tech—like Sivers Semiconductors ($SIVE) and Lumentum ($LITE)—stand to gain significant leverage here. If the bottleneck is as tight as MTSI suggests, players sitting on actual capacity and qualified tech going into 2027–2029 should see strong pricing power and market share gains.

Definitely worth keeping an eye on how this supply crunch plays out across the sector over the next few quarters. Anyone else tracking the laser suppliers closely?

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u/Difficult_Goal_9160 — 13 days ago

The latest Euroclear update for July shows a pretty notable shift in where Sivers shares are actually being held.

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The big numbers from the custody breakdown include Clearstream picking up 11 point 7 million shares, Morgan Stanley International showing up as a new entry with 15 million shares, and steady increases across Charles Schwab, Merrill Lynch, National Financial Services, and Interactive Brokers.

What this actually tells us is that the shareholder base is continuing to move away from local Swedish holding accounts and into major international custody hubs.

While a jump in Morgan Stanley International could mean institutional backing or prime brokerage activity, most of the growth in names like Schwab, IBKR, and Merrill represents growing US retail and wealth management flow.

The overall takeaway is that trading volume and ownership are becoming far more US-centric, even if we cannot attribute all of these new shares to institutional funds just yet.

u/Difficult_Goal_9160 — 14 days ago

Lumilens landing a $5.5 billion valuation is massive validation for Sivers Semiconductors

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Lumilens emerged from stealth with a massive 700 million dollar raise at a $5.5 billion dollar valuation and a multi billion dollar hyperscaler deal already shipping.

What is wild is how the public stock market is treating the suppliers feeding this exact stack. Private capital is paying huge institutional money for the finished optical interconnect layer, but the upstream suppliers with real contracts are trading like this technology is still theoretical.

If you trace the stack back, POET Technologies has a live 50 million dollar purchase order with Lumilens that can scale up to 500 million plus. Right behind them, Sivers Semiconductors produces the high power lasers that these optical engines actually need to function.

While private markets are handing out massive valuations to the finished interconnect layer, Sivers is supplying the critical laser tech at a valuation that looks like a total rounding error. The AI bottleneck has clearly shifted from GPUs to optical interconnects, and Sivers is sitting directly in the supply chain for this hardware expansion.

u/Difficult_Goal_9160 — 14 days ago

Sivers ($SIVE) CEO likes post on Aeva’s ($AEVA) new Optical Connectivity / AI infrastructure expansion—potential crossover

Noticed an interesting detail on social media that might be worth keeping an eye on for both SIVE and AEVA investors.

Sowers CEO Vikram Vathulya recently liked a LinkedIn post from Soroush Salehian (CEO of Aeva) announcing Aeva's expansion into Optical Connectivity for next-gen AI infrastructure.

Sivers is already established as the light source supplier for Aeva’s core LiDAR business.

The New Segment: Aeva announced they are leveraging their high-power optics and silicon photonics for AI data center connectivity and have already secured a first customer agreement for a major hyperscaler deployment.

Given that Sivers is already a primary light source partner on the LiDAR side, it raises the question of whether this relationship could extend into Aeva's new optical connectivity push for hyperscalers.

Definitely a subtle social signal, but worth tracking to see if Sivers plays a role as Aeva scales this new AI infrastructure arm. What are your thoughts?

u/Difficult_Goal_9160 — 14 days ago

Aeva ($AEVA) Enters AI Data Centers — Here’s Why It’s Huge for Sivers Semiconductors ($SIVE)

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Aeva just announced its expansion into AI data center optical connectivity (NPO/CPO), securing a Joint Development Agreement with a major hyperscaler for a H2 2027 deployment.

This is a massive catalyst for Sivers Semiconductors ($SIVE / $SIVEF):

InP Laser Engine: Aeva relies on Sivers Photonics for custom high-power Continuous Wave (CW) and DFB lasers used in these optical modules.

CapEx Context: Sivers’ recent SEK 700M capital raise directly supports the capacity expansion needed for Aeva's 2027/2028 hyperscaler rollout.

Commercial Traction: Outside of data centers, Aeva is scaling in commercial automotive/industrial (Bendix, SICK) and holds $302.9M in liquidity.

Triple AI Driver: Sivers now has multi-channel exposure across GlobalFoundries (SCALE™), Aeva (hyperscaler modules), and Jabil (1.6T LRO).

Aeva and Sivers are pivoting from pure automotive LiDAR plays into core AI hardware supply chains with backed balance sheets

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u/Difficult_Goal_9160 — 15 days ago

Jane Street discloses new short position in Sivers Semiconductors (0.51%)

According to a report from Finwire, Jane Street has increased its short position in Sivers Semiconductors to 0.51% (1,810,915 shares).

Key details:

Under regulations set by the Swedish Financial Supervisory Authority, short positions over 0.1% must be reported, and any position exceeding 0.5% must be publicly disclosed.

Jane Street is now one of two public short sellers in the company.

Total disclosed short interest in Sivers Semiconductors sits at 2.49% of market cap.

What are your thoughts on Jane Street taking a public short position here? Is this standard hedging/market making, or a directional bet?

Are we having fun yet?

u/Difficult_Goal_9160 — 15 days ago

Trump's China Photonics Ban: Why I Just Bought Sivers

Check out this video. He talks about the China ban. Spoiler, he goes all in on SIVE which is surprising. In his other videos, he didn't seem to hyped on Sievers.

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u/Difficult_Goal_9160 — 16 days ago

POET published a blog post walking through their overall optical strategy, and it directly confirms Sivers Semiconductors ($SIVE) role in their pipeline.

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Here are the key takeaways from the post:

POET’s Platform & Tech: Their core platform is the Optical Interposer, which is meant to scale across 800G, 1.6T, and eventually 3.2T without requiring a full redesign. Their 800G line has a $5M+ production order shipping in H2 2026, and their 1.6T line (Teralight) uses Mitsubishi Electric’s lasers (a separate relationship from Sivers).

Where Sivers Fits In: The real Sivers integration comes on the CPO (Co-Packaged Optics) side. POET put it pretty directly: "CPO architectures require external light sources because silicon does not emit light efficiently." Since silicon can’t generate light on its own, POET needs an outside laser supplier, which is where Sivers comes in.

On-the-Record Confirmation: The post explicitly states: "Collaborations with Sivers Semiconductors on next-generation light source co-development, with production targeted by end of 2026."

https://www.poet-technologies.com/blog/why-poets-optical-interposer-is-built-for-the-ai-cluster-era-from-800g-to-3-2t-on-a-single-platform

u/Difficult_Goal_9160 — 22 days ago

SIVE+JBL: Mass Production Pulled Forward—Demand Is Uncapped, Revenue Window Accelerates 📡🔥

Came across this video. I did not watch it yet. So I'm just leaving it here for you guys.

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u/Difficult_Goal_9160 — 24 days ago

Sivers Photonics shows up in the Advanced Photonics Coalition ecosystem map under Lasers

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Saw something worth flagging for anyone following SIVE/SIVEF. The Advanced Photonics Coalition put out an ecosystem map called "We are in Position to Accel" and Sivers Photonics is listed in the Lasers category, alongside names like OpenLight, Innolume, AyarLabs, Furukawa Electric and Lightmatter.

The APC map breaks the photonics supply chain into buckets like Foundry/PDK/HBM, Chiplets/PICs, E Optical Engine, Lasers, Systems and Platforms, EDA/PDA, OSAT/Packaging and a few others. Getting placed in the Lasers column puts Sivers next to some fairly serious silicon photonics and optical interconnect players.

There has also been some chatter comparing this to how JPMorgan has framed Sivers relative to Lumentum (LITE) and Coherent (COHR) in prior coverage, both of which are established public names in the laser and optical component space. If that comparison holds up it suggests some in the analyst community see Sivers as being mentioned in the same breath as bigger public comps, though I would treat that as one person's interpretation rather than a confirmed equivalence. Worth doing your own digging on how JPMorgan has actually characterized SIVE before leaning on that too hard.

Combine this with everything else already in motion this year, the insider buying, the Bootstrap Europe conversion, the directed share issue, the Nasdaq uplisting process and the interim results coming August 27, and this is another small data point suggesting Sivers is being recognized as more than a niche name inside the CPO and photonics supply chain conversation.

NFA. Just sharing what I found and my own read on it, do your own research before making any decisions.

u/Difficult_Goal_9160 — 25 days ago

AMD’s MI500, Silicon Photonics, and the Big Win for $SIVE

AMD’s upcoming MI500 is set to launch in 2027 with integrated optical interconnects, which is huge news for the sector. A lot of people on X (like @zephyr_z9 and @bookwormengr) are calling Ayar Labs the most likely pick for AMD's optics, mostly because they’re much easier to integrate right now compared to more "science fiction" tech like Lightmatter.

Here is why this whole setup points straight to Sivers Semiconductors ($SIVE), no matter which way you slice it:

  1. The Ayar Labs Connection (The Consensus Pick)

AMD already backed Ayar Labs in their Series E round, and Ayar has been showing off full scale-up racks with Wiwynn. But here’s the kicker: $SIVE has been Ayar’s confirmed laser supplier since 2022. If AMD goes with Ayar, they’re using Sivers lasers.

  1. The GlobalFoundries Connection (The Direct Route)

Reports indicate AMD is returning to GlobalFoundries ($GFS) for Co-Packaged Optics manufacturing on the MI500. Just back in June, $SIVE and GFS announced a joint partnership where Sivers laser arrays were built directly intoGFS’s silicon photonics reference designs. Sivers was the only laser company named in that release. If $GFS builds the optical platform, Sivers is the default light source.

  1. What about Lightmatter?

They’re in the conversation, but they build their lasers in-house, which would be the only real downside outcome for this thesis. That said, most analyst notes view Lightmatter as far less likely to win the near-term design slot due to integration complexity.

The Bottom Line

Both primary routes for AMD’s MI500 optics—whether through GlobalFoundries or Ayar Labs—lead right back to $SIVE. As the market shifts from copper to optical interconnects, Sivers is sitting in a massive win-win position.

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u/Difficult_Goal_9160 — 26 days ago

Soitec Earnings Surge Signals Green Light for Silicon Photonics & Sivers Semiconductors

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Soitec’s Q1 FY2027 financial release delivered a strong message to semiconductor markets: the artificial intelligence optics boom is here, and it is accelerating faster than anticipated. Driven by massive demand for high-speed AI data center interconnections, Soitec posted €113 million in revenue (+23% YoY growth), easily outperforming its guidance of ~15%.

What really ignited the stock's +29.7% jump, however, was the explosive performance in its Photonics-SOI segment.

Key Highlights from the Report

Surging Revenue: Q1 revenue rose 23% YoY to €113 million, with Edge & Cloud AI activities climbing 46% to account for 57% of total company sales.

Photonics Sales Doubled: Revenue from Photonics-SOI substrates doubled year-over-year.

Upgraded Guidance: Management expects Q2 growth to top +30% YoY and projects annual Photonics-SOI revenue to more than double from last year’s ~$100 million baseline.

Capacity Scaling: Soitec officially qualified its 300 mm fab in Singapore for high-volume Photonics-SOI production and secured multi-year capacity reservation agreements with key customers.

Why This Is a Major Catalyst for the Photonic Sector

As AI clusters grow exponentially, traditional copper interconnects hit physical limits in bandwidth, latency, and power consumption. The industry is rapidly pivoting toward optical transceivers and Co-Packaged Optics (CPO) to link GPUs and servers efficiently.

Soitec sits at the foundational level of this pyramid—providing engineered

Silicon-On-Insulator (SOI) wafers. When Soitec double its photonics substrate sales and locks in multi-year capacity agreements, it acts as a leading indicator for the entire optical ecosystem. It confirms that hyperscalers and chipmakers are ramping up high-volume production for next-generation optical infrastructure.

What This Means for Sivers Semiconductors ($SIVE)

For an ecosystem player like Sivers Semiconductors (specifically Sivers Photonics), Soitec's results are very encouraging.

Laser Sources Are Essential for Silicon Photonics: Silicon-on-insulator substrates can guide and manipulate light, but silicon itself cannot efficiently generate light. This means every Silicon Photonics (SiPh) link built on a Soitec wafer requires an external light source—specifically high-power Distributed Feedback (DFB) lasers and laser arrays—which is Sivers' specialty.

Expanding Total Addressable Market (TAM): Soitec qualifying its 300 mm Singapore fab for high-volume manufacturing proves that silicon photonics is shifting from limited prototype runs to mass commercial deployment. A rising tide in wafer production directly increases the demand for Sivers' integrated laser chips.

Multi-Year Visibility: Soitec’s multi-year reservation agreements signal long-term demand from Tier-1 customers rather than a short-term spike, painting a bright picture for light-engine suppliers across the supply chain.

Bottom Line

Soitec's Q1 FY2027 numbers provide tangible proof that AI-driven demand for photonics is ramping fast. For pure-play photonic component developers like Sivers, this rising wave of hardware investment validates the broader market thesis and highlights a clear runway for high-speed optical connectivity.

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u/Difficult_Goal_9160 — 29 days ago

Breaking down $SIVE’s 3.5M share block trade: Kairos Ventures exits, major seller overhang cleared

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Pareto Securities recently facilitated a massive internal cross-trade / block trade of 3.5 million shares in Sivers Semiconductors ($SIVE) worth 121.5 million SEK at 34.70 SEK per share (an ~8%+ discount to the previous close).

Here is what you need to know about who sold and why it matters:

Kairos Ventures Exits Fully: This 3.5M block sale was executed via board member Todd Thomson on behalf of Kairos Ventures. Having now liquidated their entire ~4.5M share position, one of the biggest structural seller overhangs on $SIVE is officially cleared.

Todd Thomson's Personal Stake: Separate from the fund, Thomson sold ~950k shares (64%) of his personal holdings on the open exchange and gave away 50k (3.4%). However, he retains 477,027 shares (32.3%) under a strict 1-year lock-up agreement.

Board Commitment: Sivers confirmed in a PM that Thomson remains the board member with by far the largest shareholding and stays committed to the company's long-term strategy.

The Takeaway: While an 8%+ discount creates short-term price drag toward 34.70 SEK, an institutional buyer absorbing 121.5M SEK in volume off-market avoids exchange panic and completely removes the Kairos fund overhang.

Does clearing out Kairos set $SIVE up for a much cleaner path forward, or are you expecting more near-term choppy price action?

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u/Difficult_Goal_9160 — 29 days ago

LAZR ETF added more SIVE again (now over 102k shares)

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Just wanted to share a quick update on what the Tema Photonics & Optical ETF ($LAZR) is doing with Sivers Semiconductors ($SIVE).

According to their latest holdings update, they just bought another 4,448 shares on July 21st, bringing their total up to 102,304 shares.

To put that into perspective:

When the ETF launched in late June, they only held 4,448 shares.

By mid-July, they bumped it up to 97,856 shares.

Now they're over 102,000 shares.

That’s roughly a 23x increase in their position in less than a month.

Now I know a lot of people are saying 100k shares isn't that many. On the surface, if you're comparing it to massive index funds holding millions of shares of Nvidia or Apple, yeah, 100k sounds kind of small.

But I think looking at just the flat share count misses the bigger picture here:

It’s the direction and speed that matters: They didn't just buy a lump sum on day one and forget about it. They’ve been consistently building and adding to the position week after week. That shows active interest, not just a random placeholder.

This is an actively managed thematic fund: $LAZR isn't a robot blindly following an index; it’s managed in partnership with SemiAnalysis. The managers are choosing to repeatedly allocate cash into $SIVE because it fits their photonics/optical thesis.

The ETF is still brand new: As $LAZR grows and draws in more capital/AUM over time, they’ll naturally have to buy more shares of $SIVE to keep their target portfolio percentage intact. Getting in early on a growing thematic ETF gives the stock a steady institutional bid.

Bottom line—don't let people convince you that 100k shares is meaningless just because it's a raw number. Going from 4.4k to 102k+ shares in a matter of weeks is a solid vote of confidence from a specialized tech fund.

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u/Difficult_Goal_9160 — 29 days ago

SIVE CEO Vickram Vathulya on the Pluggable Optics Timeline: Why the Transition Window is Sivers' Biggest Advantage ($SIVE)

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Hey everyone,

Wanted to start a discussion around recent commentary from Sivers Semiconductors ($SIVE) CEO Dr. Vickram Vathulya regarding the long-term roadmap for optical transceivers and silicon photonics in AI data centers.

There has been a lot of hype around Co-Packaged Optics (CPO) completely killing off pluggable optics overnight, but Vathulya’s outlook paints a much more realistic—and bullish—timeline for Sivers:

10-Year Coexistence Window: Pluggable optics aren't going anywhere immediately. They are expected to remain the dominant standard for roughly the next decade before being fully phased out or replaced by integrated optics.

Active Migration in Progress: Even though full replacement is a decade out, tier-1 customers and hyper-scalers are already actively building and testing the architecture to replace them.

The Revenue Bridge: Sivers doesn't have to wait 10 years to monetise the CPO shift. They are generating high-margin revenue right now via custom CW (continuous wave) lasers, NRE design wins, and key ecosystem partnerships.

Key Partners & Referrals: They are directly integrated into the supply chain ecosystem alongside major players like Jabil ($JBL) (scaling 1.6T transceivers), GlobalFoundries ($GFS) (silicon photonics platform), and Ayar Labs (optical I/O chiplets).

Why this matters for $SIVE longs:

It gives Sivers the best of both worlds. They get a long runway to monetize current technology through commercial partnerships today, while simultaneously positioning their laser technology as the default standard when the industry eventually fully migrates to advanced integrated optics.

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u/Difficult_Goal_9160 — 29 days ago