Will SpaceX, OpenAI, Anthropic Mega IPOs Break The Bull Market? ‘Big Short’ Investor Michael Burry Doesn’t Think So

Michael Burry said the planned mega-IPOs of SpaceX, OpenAI, and Anthropic will not mark the top of the current bull market, arguing that narrative effects will outweigh supply-driven market pressure. The article cites SpaceX’s expected early-June Nasdaq listing, a roughly $75 billion raise at about a $1.75 trillion valuation, and reports of OpenAI nearing a $1 trillion valuation and Anthropic at $1.2 trillion pre-IPO. While some commentators warn the offerings could drain liquidity and pressure broader markets, the piece is primarily a market-commentary update rather than a direct catalyst.

Analysis

The market is likely underestimating how much these mega-listings change capital-allocation behavior even if the direct float is small. The real transmission mechanism is not immediate index supply; it is deferred private-to-public mark-to-market compression, where late-stage venture marks, secondary pricing, and employee liquidity expectations reset across the AI ecosystem over the next 3-9 months. That can cool secondary deal velocity and force a re-rating of “growth at any price” in adjacent private names before it is visible in public indices.

For bankers, the first-order winner is the pair of lead underwriters, but the second-order risk is crowded balance-sheet usage and distraction. GS and MS may capture mandate share and prestige, yet the timing overlap with multiple megadeals can temporarily widen underwriting concessions, reduce follow-on issuance appetite, and create short-lived inventory/financing pressure in the syndicate ecosystem. That favors trading desks with distribution muscle, while smaller issuance franchises and crossover-heavy placement channels are more vulnerable to a pullback in activity.

The consensus is too focused on whether the IPOs ‘top’ the market; the more important question is whether they become a sentiment catalyst that pulls liquidity out of marginal buyers. If the listings are priced with extreme scarcity value and strong first-day pops, that can actually extend the AI complex by validating the narrative; if they wobble, the damage propagates quickly to software, semis, and private AI valuations. That creates a classic short-term binary: bullish on euphoric debut, bearish on broader market breadth if the deal pipeline stalls or aftermarket performance disappoints.

Key Decisions for Investors

• Trade the event vol: buy 1-3 month SPY or QQQ put spreads into the SpaceX listing window; risk/reward favors a limited premium outlay because a failed debut or weak aftermarket could compress breadth even if megacap indices hold up initially.
• Long GS / MS versus the KBE equal-weight bank basket over the next 4-8 weeks; these two should capture disproportionate fee economics from AI IPO mandates, with downside limited unless the pipeline is delayed broadly.
• Short a basket of late-stage private-AI proxy names via listed analogs or secondaries exposure if available, because a strong public pricing process could cap private valuation multiples for 1-2 quarters.
• Pair trade QQQ long vs ARKK short for 1-2 months if IPO enthusiasm spikes; the former benefits from index concentration, while the latter is more exposed to speculative sentiment reversal and liquidity withdrawal.
• If SpaceX prices richly but opens soft, use that as a trigger to add defensive exposure in XLU/XLP or buy downside in semis on the view that market breadth, not headline index levels, will be the pressure point.