Setup. Paramount Skydance (PSKY, $10.97) is acquiring Warner Bros. Discovery (WBD, $27.07) at $31/share cash plus ticking fee. Definitive merger Feb 27, 2026. WBD shareholders approved 98.94% on April 23. US/Germany antitrust cleared. EU FSR and CA AG probes outstanding. PSKY filed a 10-K/A on April 24 — procedural Part III amendment. The work that mattered came from cross-ticker corroboration.

Headline: deal closing at a mediocre multiple is worse than the deal breaking.

That is the math, not a slogan. PSKY shareholders absorb $43.9B equity issuance. The Subscription Purchase Price floor is $12 (with stock at $10.97 the floor binds): $43.9B / $12 = 3.66B new shares on top of ≈1.5B existing = ≈5.16B total. Combined entity inherits $72B net debt at 4.8x leverage.

Combined EBITDA build (no hand-waving):

Multiple sensitivity (equity per share at 5.16B shares, $72B debt):

Comps anchor the multiple: WBD trades ≈6.5x standalone, PSKY ≈6x. NFLX (>20x) is not the right comp for a 4.8x-levered media conglomerate. For long PSKY to clear, the market must underwrite Year-2 synergies on day 1 AND assign ≥9x. That's the bull case, not the base case.

Deal-break case is "only" −45% to −36%. $14.98B existing debt + $7B regulatory termination fee = $22B vs ≈$2.6B standalone EBITDA. The $43.9B equity issuance unwinds because it conditions on close. Standalone equity at $5-7 = −45% to −36% from $10.97.

The implication: long PSKY equity is short the combined-entity multiple. The deal closing at industry-mid 7x synergized is −53%; deal breaking is −36% to −45%. Closing well is contingent; breaking well is structural.

The Ellison Guarantee addresses risk that wasn't binding. Confirmed in 10-K/A as "in full force and effect" — personal $43.9B+ backstop. This raises P(financing completes | regulatory clear) to ≈99%. Financing was already ≈95%. Multiple risk is unaddressed.

Insider steelman. Six C-suite officers bought ≈$13M code P open market Feb-Apr at the 19th-percentile of the 52-week range — coordinated C-suite at trough with order book visibility. Per our pattern library, the strongest Form 4 signal class. Reconciliation: insiders likely have edge on (a) deal closes (vote passed, financing locked) and (b) synergy magnitude. They may be right on (a). Whether their private read on synergies justifies ≥9x post-close is the open question. The base rate for $3B+ realized synergies in mega-media (T-TWX, DIS-FOXA, Discovery-WarnerMedia) is mixed — most missed run-rate targets by 20-40%. The insider signal is consistent with deal closing; it does not validate the multiple required for long PSKY to clear.

Risk migration. Federal antitrust cleared in February. Most reads now treat EU FSR as the binding remaining risk. April 17, 2026: US District Court granted preliminary injunction halting federally-cleared Nexstar/Tegna $6.2B at CA AG Bonta's urging (8-state coalition). EU FSR base rate is 0/200+ blocked; Emirates/PPF closed with behavioral commitments. The legal theories are not identical — Nexstar/Tegna is local broadcast HHI, PSKY/WBD is national studio/streaming concentration. Read-across is partial: same statute (Clayton Act §7), similar "concentration" framing, but different geographic-market analysis. Our estimate: ≈25-35% probability of state-level injunction or material delay vs market-implied ≈10-15%.

Probability decomposition (the 30% break case):

• State-AG injunction or material delay: ≈16% (40% Bonta files × 40% conditional material block)
• EU FSR Phase II → kill terms: ≈5%
• WBD walks for governance/superior: ≈3% ($3B asymmetric break fee)
• Financing failure: ≈1% (Ellison Guarantee)
• Other (3rd-jurisdiction reg, lender pushback, macro): ≈5%

Probability-weighted E[r]:

Even adjusting probabilities to the bull side, long PSKY does not clear. The previous draft assumed +35% on close; bottom-up rebuild shows close-scenario returns are highly multiple-dependent with negative median outcome.

Risks (ranked).

1. Combined-entity multiple compression. Largest by far. Re-rating to 7x synergized: −53%.
2. State-AG action. ≈16% net contribution to the break tail.
3. Synergy realization. $3B run-rate is the management number; base rate suggests 60-80% realization, materially affecting Year-2 multiple math.
4. EU FSR Phase II. Low base rate; adds 6-9 months if opened.

Catalysts and dates.

• ~May 4, 2026: PSKY Q1 earnings (1st under 3-segment structure; DTC OIBDA inflection check)
• May-June 2026: EU FSR Phase I notification window
• Sept 30, 2026: ticking fee starts ($0.00277778/day, capped $0.25 per 90 days; max ≈$0.50 from Sept 30 to March 4 outside date)
• Dec 31, 2026: EU clearance deadline (82%)
• Jan 31, 2027: Bonta-action deadline (40%)
• Mar 4, 2027: merger outside date (70%)

What would change our mind.

• Management synergy guidance ≥$4B run-rate at close → multiple math becomes workable
• Combined-entity multiple guidance ≥9x → long PSKY worth re-running
• PSKY <$8 with continued insider buying → asymmetric risk/reward
• Bonta deadline passes (Jan 31, 2027) without filing → state AG risk fades
• Insider SELLING (code S) by Ellison/Brandon-Gordon/Delrahim → bearish reset

Trades that work on this thesis (structures, not sizing).

• Long WBD merger arb. $27.07 → $31 = +14.5% gross spread plus accreting ticking fee. ≈7-8% in 10 months at 70% close. SR ≈0.7-1.0.
• Long WBD / short PSKY pair. Cash deal, so no natural exchange-ratio hedge; rough $-for-$ structure isolates the dilution leg. (60% WBD outperforms PSKY by ≥10pp over 90 days.)
• PSKY put spread $11/$8, 3-6 month. ATM IV 66.8% vs 30d HV 67.9% = options priced fairly, not cheap. Structure makes the Bonta-files binary the dominant payoff driver at fixed cost.

Long PSKY equity at $10.97: PASS.

Evidence