Nasdaq Initial Listing Bar Rises for SPACs Under April Rule Filing

For a few years, special purpose acquisition companies could treat the Nasdaq Capital Market as the cheaper door into public markets. A rule filing published by the Securities and Exchange Commission on April 22, 2026, began closing that gap. Under File No. SR-NASDAQ-2026-033, Nasdaq rewrote its Nasdaq initial listing criteria for what its rulebook calls Acquisition Companies, lifting the capital and shareholder thresholds a blank-check vehicle must clear before its units, shares or warrants can trade.

The filing was lodged on April 15 and took effect on filing as a proposed rule change, with a 30-day delay before it became operative. The SEC kept its usual power to suspend the change within 60 days if it concluded the rule raised problems, but the notice itself did not signal any such concern.

What the Nasdaq initial listing changes require

The changes touch both of the tiers where SPACs typically list.

On the Nasdaq Global Market, the exchange amended Rule 5405 so that an Acquisition Company must show Market Value of Listed Securities of $100 million, up from the $75 million that applies under the standard it previously used. The 400-shareholder requirement that already applied to SPACs on that tier, compared with 300 for ordinary applicants, stays in place.

The bigger shift is on the Nasdaq Capital Market. Nasdaq created a new Rule 5505(b)(4) reserved for Acquisition Companies. To qualify, a SPAC needs:

• Market Value of Listed Securities of $75 million
• Market Value of Unrestricted Publicly Held Shares of $20 million
• At least four registered and active market makers

Nasdaq also amended Rule 5505(a)(3) so that SPACs must have 400 public shareholders rather than the 300 required of other Capital Market applicants, and it removed Acquisition Companies from the Rule 5505(b)(2) standard they could otherwise have used.

The rule turns a blank check’s balance sheet into the gatekeeper: if accounting shrinks equity, the listing path narrows with it.

Why the exchange moved

The rationale in the filing is technical but consequential. Nasdaq pointed to recent SEC accounting statements on how SPAC warrants are treated. When warrants are classified in ways that reduce reported stockholders’ equity, some Acquisition Companies ended up without enough equity to qualify for the Capital Market under the equity-based standard. Rather than leave SPACs relying on a test that accounting conventions could swing, the exchange chose a dedicated, market-value-based standard with a higher floor.

The exchange also framed the change as alignment. According to the notice, the new levels track NYSE requirements for SPACs and match alternative standards already present on the Nasdaq Global Market. In other words, Nasdaq argued it was not inventing a tougher bar from scratch but harmonizing with what a competing venue and its own higher tier already demanded.

Investor protection runs through the filing as the third argument. Higher capitalization and a wider shareholder base, Nasdaq contended, make a listed SPAC less vulnerable to thin trading and give the vehicle a more durable footing during the period before it finds a merger target.

Who feels the change

The most directly affected parties are SPAC sponsors and the underwriters that bring smaller blank-check vehicles to market. A sponsor contemplating a modest raise aimed at the Capital Market now faces a $75 million market value test and a $20 million public float test, plus the market maker count. Vehicles that fall short have fewer Nasdaq options.

For investors, the effect is indirect. A higher floor does not change the economics of any individual SPAC, but it shapes which ones can list at all, filtering out the smallest offerings that are more prone to illiquidity.

For exchanges, the filing narrows a competitive difference. If Nasdaq’s Capital Market had been the lower-cost route relative to NYSE, that edge has largely been removed for blank-check issuers.

Reading the filing in context

The SPAC change was one of several listing standards changes Nasdaq pursued in the first half of 2026, many of them aimed at small-capitalization issuers and manipulation risk. This particular filing stands apart because it was driven partly by accounting rather than by trading misconduct. It shows how a change in financial reporting guidance can ripple into exchange rulebooks, even when the underlying business of the issuer has not changed.

It also illustrates the speed of the immediate-effectiveness route. Because Nasdaq filed the change under the provision allowing it to take effect on filing, there was no extended approval process; the new thresholds were operative roughly a month later unless the SEC stepped in.

What to watch

The practical test is the SPAC pipeline itself. Watch whether smaller blank-check registrations shift toward larger raises to clear the $75 million and $100 million tests, whether some migrate to other venues, and whether the SEC uses its suspension window. Any further accounting guidance on warrants could also prompt the exchange to revisit the standard.