Who will Conor McGregor fight next?

**Stage 1 — Blind analysis (ignore current market prices)**

Conor McGregor returning to the UFC in the next ~18 months is highly likely based on multiple converging signals: McGregor himself naming Max Holloway as a target; heavy ticket demand and UFC promotional activity that accompanied a return announcement; and the strong commercial incentive for UFC and McGregor to run another big-money comeback. Historically McGregor has taken long layoffs but has repeatedly returned for marquee bouts when the promotional and financial incentives align. The combination of McGregor publicly pointing to a specific opponent and the promotion activating ticket sales strongly increases the baseline probability that a fight will happen within the stated window.

When evaluating opponents, Max Holloway is the most credible match on merits and media narrative. Holloway is an elite, high-profile fighter who presents a stylistic and marketing fit for McGregor: both are fan-friendly, experienced at McGregor's natural weight classes, and their matchup creates a clear promotional arc. However, booking a bout still requires contractual terms, medical/clearing timelines, and mutual scheduling availability. Alternatives with real plausibility include Justin Gaethje (top lightweight, big draw and stylistically appealing matchup), and lower-probability but feasible choices like Jeremy Stephens, Mike Perry, or Tyron Woodley — each of whom offers different matchup rationales (opportunistic one-off, pay-per-view filler, or cross-weight novelty).

My independent assessment is that the probability Conor McGregor fights next before 2028 is approximately **92%**. This is driven by: (a) public statements and promotional activation indicating a serious return plan, (b) McGregor’s commercial incentives to fight, and (c) the relatively long timeframe to 2028 which allows for resolution of contract, medical, and event scheduling issues. I do not assign 100% because of realistic blocking risks (injury, legal/contract disputes, or a surprise retirement announcement), but these are lower-probability tail events given the evidence.

**Stage 2 — Market calibration (compare to current market prices)**

The market currently prices 'Yes' at 87% (vs my 92%) and heavily concentrates the multi-outcome probability on Max Holloway (market: 87% for Holloway among the listed contenders). Two calibration points:

- *Why the market might underprice the overall Yes probability (market Yes < my 92%):* The market is sensitive to absence of a fully executed contract, and some late-break risks. Traders may be discounting the chance that public statements are promotional posturing rather than a signed bout, or that McGregor’s contractual/medical issues or a business dispute with the UFC could delay or cancel a fight. That conservatism explains some gap between 87% and my 92%.

- *Why the market may be mispricing the distribution across opponents:* The market concentration on Holloway (87% of the named contenders) looks overstated. Public comments from McGregor and media speculation push Holloway to front-runner status, and markets often overweight the most-visible narrative. But fight booking requires agreement from multiple sides; Holloway has his own career path and objectives, and other opponents (notably Justin Gaethje) have both competitive and commercial logic that keep them materially plausible. I therefore allocate a much higher share to Gaethje and modest but meaningful shares to the other named fighters than the market currently does.

Net: I adjust the probability of a McGregor return up slightly relative to the market (92% vs 87%), and re-weight opponent probabilities away from an almost-certain Holloway outcome toward a dominant-but-not-locked Holloway (see outcome_predictions below). Market liquidity/volume (~74k contracts) suggests traders can move prices as new official confirmations arrive; given the current over-concentration on Holloway, a formal UFC announcement will likely validate part of the market but until then there is measurable value in the alternative-opponent positions.