A SPAC trading below its trust value is the market selling cash at a discount — with a catch that this article will not bury: the discount is only real while a redemption right still exists. Within that window, "below trust" is one of the few places in markets where the return is computable in advance: known price, knowable payout, dated exit.
The mechanics in one example
Suppose a SPAC trades at $9.90 with $10.10 per share in trust (verify that number yourself — how to compute NAV) and a redemption event 90 days out.
- Discount: (10.10 − 9.90) ÷ 9.90 = 2.02%
- Plus ~90 days of Treasury interest accruing inside the trust: at 4%, another ~0.5%
- Return to redemption ≈ 2.5% in 90 days ≈ 10% annualized, achieved by redeeming at the event (the step-by-step)
The payout isn't a forecast — it's cash already sitting in Treasuries. The uncertainties are the date (extensions push it), the execution (your broker's cutoff, not the official one), and whether you keep the right at all.
Why discounts exist
If the return is computable, why does anyone leave it on the table? Because the discount is the price of time and patience:
- Competition from T-bills. The trust earns roughly the T-bill rate; a discount is what makes a locked-up, dated claim beat holding bills directly. When short rates are high, discounts widen across the whole universe.
- Date risk. "90 days to the vote" can become 200 via extensions. Annualized returns dilute as the calendar stretches — though extension deposits partially compensate (see extension votes).
- Forced sellers. Funds exiting SPAC positions for liquidity or mandate reasons sell without haggling over 1.5%.
- Neglect. Sub-$300M vehicles with no news coverage simply go unwatched. That neglect is the opportunity.
There is also a false reason worth naming: a deep discount — 10%, 20%, 40% — is almost never a bigger version of the same opportunity. Past a few percent, the market is usually telling you the redemption right is gone or about to be. Which brings us to the caveat that deserves its own section.
The one case where "below trust" is a lie
Trust value only floors the price through the redemption right. After a SPAC's final redemption window closes — typically at the merger vote — the cash may still sit in trust, but no remaining public holder can claim it. The share then trades on the merged company's prospects alone, and a screen still showing "trust $10.26, price $6.06, discount 40.9%" is describing a trap, not a bargain. That's a real SPAC from our records, and the full anatomy of the failure is in the floor disappears.
This is why our below-NAV list excludes names whose redemption right has lapsed, even though including them would make the discounts look spectacular. A discount you cannot redeem into is not a discount.
Reading the opportunity honestly
For a live, redeemable SPAC below trust, the questions in order of importance:
- When is the next redemption event? The date sets the annualized return. Our deadlines list has every dated event from SEC filings.
- What's the verified trust per share? Not the $10.00 convention — the filed number plus accrual. Overfunded trusts and old, extended SPACs run well above $10 (we've recorded payouts from $10.51 to $12.50).
- Can you execute? A discount you can't redeem through your broker in time reverts to hope. Two business days of cutoff margin, minimum.
- Does the annualized return clear T-bills? If redeeming at the event yields less than bills over the same period, the "discount" is just fair pricing of the lock-up.
The asymmetry that makes this worth understanding
Held to redemption with the right intact, the downside of a below-trust purchase is bounded near zero (the trust pays what it pays), while the upside carries a free option: if the SPAC announces a deal the market loves before your event, the shares can pop above trust and you can sell into it — keeping the discount and the surprise. That asymmetry — small, capped, dated return with an embedded lottery ticket — is why below-trust SPACs attract a permanent professional following, and why the live list is the page on this site the professionals check first.
None of this is advice to buy anything. It's the arithmetic and the failure modes, so that when you look at the list you see what the professionals see — including the traps.