Compliance
Cheap Stock and the Pre-IPO 409A: Why the SEC Second-Guesses Your Option Grants
As the 2026 IPO window reopens, the SEC applies hindsight to your pre-IPO option grants. Here's how cheap stock charges work and how a current 409A stops them.
By 409.AI Team - 2026-08-04
# Cheap Stock and the Pre-IPO 409A: Why the SEC Second-Guesses Your Option Grants
You grant options in January at a $2.10 strike, backed by a fresh 409A. Ten months later the company prices its IPO at $18 a share. Everyone celebrates, and then a lawyer from the underwriting team asks a quiet question: how did the common stock go from $2.10 to $18 in less than a year, and can you prove each grant along the way was priced fairly?
That question is the "cheap stock" problem, and it has teeth. With the IPO window reopening in 2026, a lot of founders who spent years granting options at low strike prices are about to meet it for the first time. The good news is that a defensible 409A process is most of the defense. The bad news is that a sloppy one can force an accounting charge, restated financials, and a delayed offering right when timing matters most.
What "cheap stock" actually means
"Cheap stock" is the label auditors and the SEC use when a company appears to have granted stock options at a strike price below the true fair market value of its common stock at the time of grant. It is not an accusation of fraud. Most cheap stock ends up being an honest gap between a good-faith valuation and what hindsight suggests the shares were really worth.
The consequence is an accounting one. Under [ASC 718, the standard that governs how startups expense stock options](https://www.409.ai/articles/asc-718-stock-based-compensation-startup-guide), a company measures the grant-date fair value of an award and recognizes it as compensation expense over the vesting period. If the fair value of the underlying common stock at the grant date was actually higher than the strike price assumed, the option was worth more than the company booked. The fix is more expense. That extra compensation cost is the cheap stock charge, and it can run into the millions for a company that granted heavily in its final private year.
There is a tax layer too. Section 409A of the Internal Revenue Code requires that nonqualified stock options be granted with a strike price at or above fair market value on the grant date. Miss that, and the option can lose its exemption from 409A, exposing the employee to immediate income inclusion, a 20% additional federal tax, and premium interest. The accounting charge lands on the company; the 409A penalty lands on the people you were trying to reward.
The SEC's hindsight problem
Here is what makes the pre-IPO period uniquely dangerous. Once a company files its S-1 and enters registration, the SEC staff reviews the equity grants made in roughly the 12 to 18 months before the offering. And they review them knowing the IPO price.
That is the trap. A valuation done in January cannot see the IPO that prices in November. But the reviewer can. When the staff looks back at a $2.10 grant against an $18 debut, they want to understand the path between the two numbers and see that each step was supported. If the jump looks like it came out of nowhere, they will push the company to recognize additional compensation expense for the grants that now look underpriced.
This is why the run-up to an IPO is exactly when valuation discipline has to tighten, not relax. The company that refreshes its 409A once a year and grants against a stale number is the company that ends up explaining a cliff. For more on why the cadence matters, see our breakdown of [how often you actually need a 409A](https://www.409.ai/articles/409a-valuation-frequency-how-often-should-you-get-one).
Where your 409A comes in
A 409A valuation performed by a qualified independent appraiser creates a safe harbor. Under the Section 409A regulations, a grant priced off an independent appraisal that is no more than 12 months old (and predates any material change) is presumed reasonable. The burden then flips: the IRS has to show the valuation was grossly unreasonable, which is a high bar. That presumption is the shield that keeps a good-faith grant from becoming a penalty.
But a 409A does more than set a floor for the strike price. It also explains the gap between your common stock and the price your investors paid. Preferred shares carry liquidation preferences, dividends, and control rights that common shares don't, so common is worth less. On top of that, private common stock carries a discount for lack of marketability (DLOM), because you can't sell it on an open market. Those two forces are the main reason [your 409A comes in well below your post-money valuation](https://www.409.ai/articles/why-is-your-409a-valuation-lower-than-post-money-valuation).
As an IPO becomes probable, both discounts shrink. The preference stack starts to matter less because most preferred converts to common at the offering. The marketability discount compresses toward zero because a public market is about to exist. That compression is not a modeling quirk; it is the mechanical reason a legitimate 409A rises steeply in the final year. A DLOM of 25% to 35% two years out might be 8% to 12% a few months before pricing. The strike prices climb with it.
A worked example
Say you grant 500,000 options in January at a $2.10 strike, off a 409A that concluded common fair market value of $2.10. The company prices its IPO in November at $18.
If a retrospective look concludes the common stock was actually worth $5.00 in January, the options were in effect granted $2.90 in the money. Under ASC 718 that raises the grant-date fair value the company should have booked. On 500,000 options, that is roughly $1.45 million of additional value flowing into compensation expense over the vesting term, plus the cleanup of restating the periods already reported. Multiply that across every underpriced grant in the look-back window and you can see why cheap stock stalls offerings.
Now run it the other way. If contemporaneous 409As had walked the common value up from $2.10 in January to $4 in the spring to $8 in the summer as the IPO became visible, each grant sits on its own supported number. There is no cliff to explain, and no charge to take.
Why the methods change near an exit
The allocation method inside your 409A also shifts as an exit approaches, and reviewers expect to see that shift. Early on, when a liquidity event is uncertain and far off, appraisers often lean on the Option Pricing Model (OPM), which treats each class of equity as a call option and doesn't require picking an exit date. As a specific IPO or sale becomes probable, valuators move toward the Probability-Weighted Expected Return Method (PWERM) or a hybrid, modeling explicit scenarios (IPO at this price, stay private, get acquired) and weighting them.
That is not appraisers moving the goalposts. It reflects better information. When you can see the exit, you are supposed to use it. We walk through the tradeoffs between these approaches in [OPM vs. PWERM](https://www.409.ai/articles/409a-allocation-methods-opm-pwerm-backsolve). A 409A that is still leaning entirely on OPM the quarter before an S-1 is a red flag to an auditor.
Secondary sales now carry more weight
There is a fresh wrinkle worth flagging. In December 2025, the AICPA released a working-draft update to its guide on the valuation of privately held company equity issued as compensation, the document valuation practitioners simply call the "cheap stock guide." It is the first full revision since 2013, and comments were open through June 1, 2026 ([AICPA guide overview](https://www.aicpa-cima.com/resources/article/valuation-of-privately-held-companies-equity-securities-issued); [KPMG summary](https://kpmg.com/us/en/frv/reference-library/2026/aicpa-issues-working-draft-updated-cheap-stock-guide.html)).
One theme runs through the draft: secondary market transactions now carry greater weight in estimating fair value, with new chapters on market transactions and share buybacks. That matters because private companies have spent the last decade running tender offers and letting employees sell into secondaries at prices that often sit above the 409A. If an employee sold shares at $12 in a tender in March, it is hard to argue the common was worth $4 in a grant that same month. Expect appraisers, auditors, and the SEC to lean harder on those data points. If your company has run secondaries, read how [tender offers and secondary sales feed into your 409A](https://www.409.ai/articles/tender-offers-secondary-sales-409a-valuation) before your next grant.
The direction of travel is clear. The more real transaction evidence exists for your stock, the less room there is to justify a low strike, and the more a stale valuation stands out.
How to stay out of trouble
None of this requires exotic maneuvering. It requires cadence and paperwork.
Refresh the 409A on a real schedule and after every material event: a priced round, a signed term sheet, a tender offer, a big commercial milestone, or the moment an IPO moves from someday to a live process. In the last 12 to 18 months before an offering, quarterly is normal, and monthly is not unusual once bankers are engaged. Grant options only against a current valuation, and never let the board approve a batch of grants at a strike that predates the latest number.
Keep the board process clean. Grants should be approved at fair market value on the actual grant date, documented in minutes, and tied to the specific 409A in effect. The difference between an ISO and an NSO also rides on that strike price being right, since [how each option type is taxed](https://www.409.ai/articles/iso-vs-nso-how-stock-options-are-taxed) depends on the grant being at or above fair market value. And because the whole exercise turns on getting fair market value right rather than borrowing your last round's headline number, it helps to be clear on [why a 409A and fair market value are not the same thing](https://www.409.ai/articles/409a-valuation-vs-fair-market-value).
If you are already reading S-1 drafts, the IPO-readiness of your equity records is part of the diligence, right alongside the [double-trigger RSU mechanics that decide when your team actually gets taxed](https://www.409.ai/articles/double-trigger-rsus-ipo-taxation-409a). Bankers and auditors will ask for the full valuation history. A clean stack of contemporaneous 409As is the answer that makes cheap stock a non-issue.
The takeaway
Cheap stock is not really about the SEC being aggressive. It is about the gap between a number you set with a straight face in January and a number the market hands you in November, and whether you can show your work for every grant in between. The companies that get through registration without a charge are not the ones with the lowest strikes. They are the ones whose valuations kept pace with reality, quarter by quarter, right up to the bell. Refresh early, grant against current numbers, and treat every secondary sale as evidence, not noise. Do that and the hindsight review becomes a formality instead of a delay.