Institutional ticker directory tracking stock mentions, long/short ideas, and high-conviction pitches extracted from quarterly hedge fund letters.
| Ticker | Company | Sector | Industry | Pitches | Stance |
|---|---|---|---|---|---|
| Fund / Manager | Thesis Excerpt | Stance | Period / Date | Action |
|---|---|---|---|---|
Choice Equities Capital Management Mitchell Scott | “MGNI – Market volatility and economic concerns were the primary forces pushing MGNI to trade in such a wide range during the first half of the year, as markets briefly priced severe cuts to ad budgets into the stock. As economic storm clouds lifted, evidence began to emerge that ad budgets largely remain intact relative to prior expectations, and though the company suspended its guidance for the second half of the year, it seems its prior views will likely be sustained. Aside from positive channel checks, encouraging peer reports and general news of resilient ad spending, perhaps more interestingly, these checks suggest that advertiser television ad budgets now favor CTV (i.e., streaming) over traditional linear TV, a shift in advertiser TV budgets long underway that has reached the critical equilibrium mark. Netflix is of course some part of this, as their advertising efforts continue to gain scale, but the tide is also turning more broadly. The company's recent earnings call also produced some noteworthy data points, as management highlighted the benefits of potential market share gains should the DOJ force any remedies on Google as a result of the ad tech trial ruling issued in April. The remedies trial remains set for September 22nd. Developments there will likely be contested and remain somewhat unpredictable. A second ad tech trial will soon start in August in Texas, which is also likely to have some ramifications on potential outcomes. Suffice it say, court filings and testimony transcripts make for interesting reading, and we are tracking developments closely. For now, and until further news breaks, it is encouraging to see the company continuing to announce a steady stream of new customer wins, recently adding Amazon, Pinterest, Redfin and Paramount Australia to a customer list that has been growing impressively lately. BSD Analysis: Choice Equities argues MGNI is positioned to benefit from resilient ad spending and a major structural shift toward CTV, which now surpasses linear TV in budget allocation. Despite suspended guidance, channel checks indicate stable demand, and MGNI could gain share if DOJ rulings constrain Google's ad-tech dominance. Valuation remains depressed relative to strategic value given MGNI's CTV exposure and expanding customer list (Amazon, Pinterest, Redfin). The upcoming DOJ and Texas trials represent potential catalysts, while continued customer additions highlight competitive momentum. Given CTV's double-digit growth and MGNI's scaled SSP position, revenue acceleration could support multiple expansion.” | BULL | Q2 2025 Jul 17, 2025 | View Pitch |
New West Capital Kyle Tushaus | “You have a few companies, namely Magnite (MGNI) and PubMatic (PUBM), that have been forced to operate and grow in the shadow of Google's ad tech dominance. If Google is required to cease its monopolistic behavior and cede market share to them, given their already established (albeit small) market positions these companies will be able to convert that additional revenue at a higher rate than the revenue it took them to get them to where they are now. Said simply, a very high proportion of each new revenue dollar will find its way to the EBITDA or Operating Income line. And given their relatively small market share, any boost is a material shift in the company's economic value creation ability. Read that as “multibagger.” This was done specifically on MGNI, when the stock was under $12 per share. At close of Q2 2025, the stock was trading at $24 per share, the puts had expired worthless (more than paying back our cost for the calls), and the remaining call position had increased 7x from our purchase price. A success to say the least. So far. However, even though the stock has doubled we are just now starting to see the Market catch up with analyst re-ratings and write ups exploring their marginal EBITDA conversion potential just starting to appear. Having already paid for the cost of the position, I am happy to see if the full thesis is realized with the remaining stake that will be left behind after the Partnership's wind down. BSD Analysis: Magnite is the largest independent SSP in a market dominated by walled gardens, with a strong position in connected TV that should grow faster than the broader digital ad market. While reported earnings are still volatile due to mix and integration costs, underlying adjusted margins have been improving as the company scales its CTV footprint and rationalizes its platform. The balance sheet is reasonable for an asset-light software model, and cash generation should strengthen if management continues to emphasize profitability over low-quality volume. Valuation is undemanding relative to faster-growing adtech peers, reflecting investor skepticism about SSP economics and regulatory uncertainty, which provides upside if the Google remedy is constructive but still leaves a path to value creation from secular CTV growth alone. Key catalysts include resolution of the antitrust case, further consolidation among SSPs, and large streaming platforms shifting more ad inventory to open programmatic pipes. Main risks center on privacy changes, cyclical ad spending, and the possibility that buy-side platforms capture more value in the chain than anticipated.” | BULL | Q2 2025 Jul 14, 2025 | View Pitch |
Apis Global Discovery Fund Daniel Barker | “Magnite is one of the largest independent sell-side platforms (SSPs) – effectively serving as enterprise software for digital publishers, including websites and connected TV channels. Its platform enables publishers to manage ad serving, optimize yield, and target audiences more effectively by connecting their ad inventory to a broad network of demand partners. In return, SSPs earn a percentage of ad spend flowing through their platforms. Magnite benefits from deep integrations with publishers and demand-side platforms, creating high switching costs and a durable competitive moat. The company is widely recognized for its fast, reliable technology infrastructure. Two major trends are reshaping the digital advertising landscape. First, ad budgets continue to shift from traditional linear TV to Connected TV (CTV) as platforms like Netflix and others expand their ad-supported offerings. Second, a recent antitrust ruling against Google may significantly alter the dynamics of the open web advertising market – specifically for video and display ads on browser-based websites. The court found Google had engaged in anti-competitive practices, and a follow-up hearing this September could result in structural changes that benefit independent ad tech providers. CTV now represents approximately 50% of Magnite's revenue, with the segment expected to grow at a 15% CAGR over the medium term. The company is well-positioned to outpace this growth thanks to their scale, deep publisher relationships, and strong technology platforms. In mid-2024, Magnite was named Netflix's exclusive ad tech partner, positioning it to benefit as Netflix targets $9 billion in ad revenue by 2030. In the open web advertising market, Google maintains a dominant 60% share, compared to 7% for Magnite. Despite its relatively small share, open web ads still account for approximately 40% of Magnite's revenue. A meaningful shift in market share following the recent antitrust ruling could serve as a powerful catalyst, with potential double-digit revenue growth beginning in 2026. To illustrate the upside: each 1% shift in market share away from Google would translate into an estimated $50–75 million in high-margin revenue (with about 90% incremental margin) – equivalent to roughly half of Magnite's 2024 EBITDA. At current valuations – 15x forward EBITDA for Magnite – we believe this embedded optionality is not yet priced in, and the stocks could offer 50–100% upside from current levels. BSD Analysis: Magnite is the DSP alternative that's benefiting from fragmentation of the streaming ecosystem. As every platform launches or expands ad tiers, supply-side partners become more important, and Magnite is already embedded. The company has cleaned up its cost structure, boosted ad quality, and strengthened its pipeline in CTV. This is a levered bet on the future of programmatic TV — and it's still early.” | BULL | Q2 2025 Jun 30, 2025 | View Pitch |
Apis Flagship Fund Daniel Barker | “Magnite is one of the largest independent sell-side platforms (SSPs) – effectively serving as enterprise software for digital publishers, including websites and connected TV channels. Its platform enables publishers to manage ad serving, optimize yield, and target audiences more effectively by connecting their ad inventory to a broad network of demand partners. In return, SSPs earn a percentage of ad spend flowing through their platforms. Magnite benefits from deep integrations with publishers and demand-side platforms, creating high switching costs and a durable competitive moat. The company is widely recognized for its fast, reliable technology infrastructure. Two major trends are reshaping the digital advertising landscape. First, ad budgets continue to shift from traditional linear TV to Connected TV (CTV) as platforms like Netflix and others expand their ad-supported offerings. Second, a recent antitrust ruling against Google may significantly alter the dynamics of the open web advertising market – specifically for video and display ads on browser-based websites. The court found Google had engaged in anti-competitive practices, and a follow-up hearing this September could result in structural changes that benefit independent ad tech providers. CTV now represents approximately 50% of Magnite's revenue, with the segment expected to grow at a 15% CAGR over the medium term. The company is well-positioned to outpace this growth thanks to their scale, deep publisher relationships, and strong technology platforms. In mid-2024, Magnite was named Netflix's exclusive ad tech partner, positioning it to benefit as Netflix targets $9 billion in ad revenue by 2030. In the open web advertising market, Google maintains a dominant 60% share, compared to 7% for Magnite. Despite its relatively small share, open web ads still account for approximately 40% of Magnite's revenue. A meaningful shift in market share following the recent antitrust ruling could serve as a powerful catalyst, with potential double-digit revenue growth beginning in 2026. To illustrate the upside: each 1% shift in market share away from Google would translate into an estimated $50–75 million in high-margin revenue (with about 90% incremental margin) – equivalent to roughly half of Magnite's 2024 EBITDA. At current valuations – 15x forward EBITDA for Magnite – we believe this embedded optionality is not yet priced in, and the stock could offer 50–100% upside from current levels. BSD Analysis: Magnite's real competitive advantage isn't scale — it's neutrality. As streaming platforms shift to ad-supported tiers, they need partners they can trust with auction dynamics and transparency. Magnite fills that role perfectly. With device-level CTV growth accelerating, Magnite is positioned directly in front of the next wave of premium programmatic monetization. The market still prices it like a flaky ad-tech small cap — but the runway is long and the model is getting sturdier.” | BULL | Q2 2025 Jun 30, 2025 | View Pitch |
CrossingBridge Advisors David Sherman | “The company possesses a robust credit profile backed by cash levels that exceed its outstanding first-lien debt. The fund added to this position during the quarter, locking in an attractive yield relative to Treasury maturities and benefiting from defensive cushion-bond characteristics.” | BULL | Q4 2024 Dec 31, 2024 | View Pitch |
Each excerpt above is the manager's commentary on this ticker specifically. The full letter has the rest of their portfolio thinking, risk discussion, and broader institutional context.
