MGNI

ANALYST NOTE: MGNI (Magnite, Inc.) Date: 2026-06-13 Event Date: 2026-06-13

1. Structural Readiness

Current Price: $17.89 Conservative Entry: — (Breakout not yet fired) Aggressive Entry: $13.17 (Pre-breakout / forming entry) Breakout Level: $26.65 (Resistance to clear) Extension: —

Analysis:

2. Thesis Layer

Thesis Classification: Tactical / Setup-Led Secular Thesis: None named at this date.

This is a tactical trade driven by the structural setup quality and near-term business fundamentals rather than a named macro secular thesis. As of June 13, 2026, there is no specific "narrative" thesis (e.g., "AI disruption" or "Regulatory arbitrage") assigned to this name in the system. The conviction must be derived strictly from the quality of the Coil structure, the strength of the recent earnings guidance, and the company's execution on its CTV growth strategy. We judge this name on the setup's structural integrity and the management's ability to deliver the guidance provided in May 2026.

3. Business Fundamentals

Company Overview: Magnite, Inc. operates as the world's largest independent omni-channel sell-side advertising platform (SSP). The company provides technology solutions that automate the purchase and sale of digital advertising inventory. Its platform serves two primary groups:

• Publishers: Owners of CTV channels, apps, websites, and digital media properties who use Magnite to manage and monetize inventory.
• Buyers: Advertisers, agencies, and Demand Side Platforms (DSPs) that use the platform to buy inventory globally across all channels and auction types.

Key Business Drivers & Evidence (as of 2026-06-13):

• CTV Dominance: The company identifies Connected TV (CTV) as its primary growth engine. In Q1 2026, CTV contribution ex-TAC grew 30% and represented 51% of total contribution. Management expects CTV contribution ex-TAC to grow 26% to 29% in Q2 2026, reaching a range of $90 million to $92 million.
• Revenue Guidance: For the full year 2026, management reaffirms total contribution ex-TAC growth of at least 11%. They have raised Adjusted EBITDA margin guidance to at least 35.5% (from >35%) and expect free cash flow growth in the mid-30% range.
• Strategic Acquisitions & Tech: The company completed the acquisition of Streamrai, Inc. in September 2025, an AI platform designed to make CTV advertising accessible to SMBs. Additionally, the next-generation SpringServe CTV platform was introduced in April 2025, combining streaming SSP and ad server functionalities.
• Customer Traction: Recent announcements with Expedia Group, Walmart Connect, and Roku Curate indicate traction in commerce media. The platform processes trillions of ad requests per month, positioning it as a scaled alternative to "walled gardens."

4. Archetype and Conviction

Archetype: Growth Leader / Margin Inflector Valuation Context: The financial spine indicates a forward consensus EPS of $1.06 for FY1 and $1.23 for FY2. Given the management's guidance for mid-teens Adjusted EBITDA percentage growth and mid-30% free cash flow growth, the company is operating as a high-growth, margin-expanding entity.

Conviction Stack:

• Thesis Strength: Moderate. The lack of a named secular thesis limits the "narrative" upside, but the business fundamentals are robust.
• Evidence Quality: High. The May 6, 2026 earnings transcript provides specific, quantified guidance for Q2 and Full Year 2026, including specific dollar ranges for CTV contribution and clear margin targets.
• Setup Readiness: Partial. The setup is active but requires a breakout above $26.65 to become a confirmed trade. The current price of $17.89 is in the "forming" zone.
• Rerating Potential: High. If the company continues to execute on the 11%+ contribution growth and margin expansion to 35.5%, the market may re-rate the stock from a pure growth story to a high-margin cash-flow generator.

ATR Context: The current ATR of 4.9% falls into the "High" bucket (4–6%). This is historically the "sweet spot" for setups, providing enough volatility to reach the breakout level without the extreme risk associated with >8% ATR.

5. Invalidations, Strengths, and Gaps

What Would Invalidate:

• Fundamental Deterioration: A miss on the Q2 2026 CTV contribution guidance (below $90M) or a failure to maintain the 35.5% EBITDA margin target would undermine the growth narrative.

What Would Strengthen:

• Price Action: A sustained close above $26.65 would confirm the breakout, transitioning the setup to "Confirmed-Active."
• Fundamental Execution: Continued growth in the "commerce media" segment (Expedia, Walmart) or successful monetization of the Streamrai AI tools would validate the diversification strategy.

Evidence Gaps:

• Long-Term Macro: There is no specific evidence regarding the long-term impact of privacy changes or cookie deprecation on the independent SSP model beyond the general "shift to digital" narrative.
• Competitive Moat: While the company claims to be the "largest independent," there is no specific data in the provided evidence comparing its market share or pricing power against the "walled gardens" (Google, Meta) in 2026.

PRIVATE ANALYST CALL

Judgment: Speculative Confidence: medium Key risks: Price must clear $26.65 to confirm the setup; Current ATR of 4.9% indicates high volatility which increases stop-loss width; No named secular thesis to provide narrative tailwinds beyond tactical setup; Execution risk on new AI and commerce media initiatives. Sizing hint: Position size should reflect the "forming" nature of the setup; smaller than a confirmed breakout trade, but larger than a pure momentum play due to the strong fundamental backing. Expected path: Management expects CTV to remain the primary growth driver with mid-30% FCF growth; if guidance is met, the stock should grind higher toward the $26.65 resistance level as the coil completes its formation. Expected horizon: 3 to 6 months for the coil to complete its formation and attempt a breakout, contingent on earnings execution.