How Funding Rounds Reset Your Strike Price
Published on 13 Jul, 2026
Every time you close a financing round, your existing 409A valuation is superseded and your common stock FMV changes in ways that are more nuanced than simply reading off the new preferred price.
Why every funding round requires a new 409A valuation
A 409A valuation establishes the fair market value (FMV) of your company's common stock at a specific point in time. When a new financing round closes, that point in time has passed, the round creates a new enterprise value signal that the prior appraisal could not have anticipated. Using a pre-round 409A to support option grants made after the round closes is a compliance failure, regardless of how recently the prior appraisal was obtained.
This is not a technicality. The IRS safe harbor requires that the FMV used to price options reflects conditions at the time of grant. A post-Series A grant priced on a pre-Series A 409A is priced on stale information and the burden of proving that FMV was correct shifts entirely to the company.
The compliance gap risk: Options granted after a new round closes but before a new 409A is complete do not have a safe harbor date. If the subsequently delivered appraisal produces a higher FMV than the strike price used, those grants may be non-compliant. The grant date must follow the establishment of a defensible FMV. For more on the penalty consequences, see Section 409A, Safe Harbour Valuations, and the Cost of Getting It Wrong.
How liquidation preferences and preferred terms reduce common stock FMV
The most common misconception after a new round closes, is that the preferred share price from the round can be used as the option strike price. It cannot and understanding why is fundamental to understanding how 409A valuations work.
Preferred shares carry rights that common shares do not. The most significant of these is the liquidation preference. In any exit, preferred shareholders receive their investment back (and in some structures, a multiple of it) before common shareholders receive anything. This means that in all but the largest exits, common shareholders receive materially less per share than preferred shareholders would receive.
The 409A appraisal accounts for this economic reality through the Option Pricing Model (OPM), a framework that models the company's equity as a series of call options and allocates value to each share class based on its payoff profile across a range of exit scenarios. Common stock receives what remains after the liquidation preferences are satisfied. This is always less than the preferred price, often significantly so at early stages.
Additional preferred rights that further widen the gap include:
- Participation rights — participating preferred shareholders receive their preference and then participate alongside common in remaining proceeds, compressing common's share further
- Anti-dilution protections — in a down round, anti-dilution provisions adjust the preferred conversion ratio in investors' favour, reducing the effective value available to common
- Dividend rights — cumulative dividends, where present, add to the preferred preference stack over time
For a detailed explanation of how the liquidation waterfall works and how each preference affects common stock value, see Who Gets Paid First? Understanding the Liquidation Waterfall in 409A Valuations.
How the common-to-preferred ratio evolves from seed to pre-IPO
The ratio of common stock FMV to preferred share price, sometimes called the common-to-preferred ratio, is not fixed. It evolves as the company matures, reflecting changes in the capital structure, the enterprise value, and the proximity to a liquidity event. As a directional guide based on practitioner observation, the ratio typically moves as follows across stages:
5 – 15%
Cost/Scorecard
No priced round. High uncertainty. Minimal enterprise value to allocate to common.
25 – 50%
OPM / Market Comparable
First priced round. OPM reflects preference subordination and high failure probability.
35–55%
OPM Backsolve + DCF
Layered capital structure. Backsolve from most recent round is standard.
50–70%
Market Comps + DCF
Preferences become smaller proportion of total value. DLOM begins to compress.
65–85%
PWERM + Public Comps
Exit increasingly likely. DLOM narrows significantly. Common approaches preferred value.
These ranges are directional practitioner observations, not fixed benchmarks. Actual ratios vary significantly based on capital structure terms, market conditions, and company-specific factors at the time of each appraisal.
For a deeper treatment of how methodology and FMV evolve at each stage, see 409A Valuations Across Funding Stages: How Methodology, FMV, and Timing Evolve As You Grow
When to commission your post-round 409A valuation
The timing of the post-round 409A relative to the grant cycle is one of the most practically important decisions a founder or CFO makes. The principle is straightforward: the 409A must be completed before any grants are made. In practice, this creates a planning obligation that many companies underestimate.
Key timing considerations:
- Engage the appraiser before or at close. Ideally, the 409A engagement is initiated as the round is closing, not after. This minimizes the gap between close and report delivery and reduces the risk of a compliance window opening if there is pressure to make grants quickly post-close.
- Allow 10 to 14 business days for a standard engagement. For a well-prepared company with a straightforward capital structure, this is the typical turnaround. For more complex structures, allow 15 to 20 business days. For more detail on what drives timeline variation, see 409A Valuation Timeline: How Long Does It Take and What Affects It.
- Do not grant options in the gap. The period between round close and 409A delivery is a compliance gap. Options granted in this window are not covered by the prior appraisal and are not yet covered by the new one. If grants are urgently needed, the board should formally set the grant date as the date the new 409A FMV is established, not the date of board approval.
The compliance risk of granting options before a new 409A is complete
This is the most operationally significant risk in the post-round period and deserves explicit attention. The sequence that creates the compliance problem is common: the round closes, the board approves a grant cycle for new hires or refreshes, and options are issued before the new 409A is delivered. The strike price used is either the old FMV or a rough estimate of where the new FMV will land.
Both approaches create exposure:
Using the old FMV
The prior appraisal has been superseded by the new round. It no longer reflects current conditions and does not provide the safe harbor for post-round grants.Using an estimated new FMV
An internal estimate, even a well-informed one, does not meet the qualified independent appraiser standard. If the actual delivered FMV is higher than the estimate used, the grants are non-compliant by the difference.
How valuation methodology shifts between funding rounds
Each new financing round does not just change the numbers in the 409A, it often changes the methodology itself. The approach that is most appropriate at seed stage is not the most appropriate at Series B, because the nature of the available evidence changes as the company grows.
| Stage | Primary Methodology | Why It Applies | What Changes vs Prior Stage |
|---|---|---|---|
| Pre-seed | Scorecard / cost-to-recreate | No revenue, no priced round — value resides in team and concept | First appraisal — no prior methodology to build from |
| Seed | OPM with first preferred round as anchor | First priced round creates an enterprise value signal to backsolve from | Introduces preferred stock, liquidation preference, and DLOM for the first time |
| Series A | OPM backsolve + weighted DCF | Layered capital structure; first audit creates auditor review of methodology | Multiple preferred classes; convertible notes add complexity to the OPM waterfall |
| Series B / C | Market comps + DCF blend; backsolve as cross-check | Revenue metrics available; public comparable set becomes more relevant | Backsolve weight decreases; market comps and DCF receive increasing weight |
| Late stage / pre-IPO | PWERM with explicit exit scenarios | Exit is proximate; IPO and M&A scenarios can be modelled with probabilities | Secondary market data may be available as a cross-check; SEC lookback window opens |
Understanding this methodology progression helps founders anticipate what the post-round 409A will require — both in terms of the information the appraiser will request and the analytical complexity of the engagement. For a full stage-by-stage breakdown, see 409A Valuations Across Funding Stages: How Methodology, FMV, and Timing Evolve As You Grow.
Key Takeaways
- Every priced financing round is a material event that supersedes the prior 409A regardless of when it was obtained
- The preferred price from a new round cannot be used as the common stock strike price, the OPM allocation is required to account for liquidation preferences and other preferred rights
- The common-to-preferred ratio typically increases as the company matures. Liquidation preferences represent a smaller proportion of total enterprise value at later stages
- Options granted after a new round closes but before a new 409A is complete are at compliance risk. The grant date must follow the establishment of a defensible FMV
- The methodology used in the post-round 409A shifts as the company grows, backsolve dominates at early stage, market comparables and DCF receive increasing weight at Series B and beyond
Related Reading in This Series
- 409A Valuations Across Funding Stages; Who Gets Paid First? Understanding the Liquidation Waterfall
- Splitting The Pie: How Equity Allocation Methods Determine What Your Common Stock Is Really Worth
- How Macroeconomic Conditions and VC Market Dynamics Impact Your 409A Valuation
This article is part of a series on 409A valuation and is intended for general informational purposes only. It does not constitute legal, tax, or financial advice. The relationship between funding rounds and §409A valuation described here is a general framework. Its application to any specific financing transaction, capital structure, or grant cycle is fact-specific and requires professional judgment. The timing and compliance obligations described are based on Treasury Regulations §1.409A-1(b)(5)(iv) and should be verified with qualified legal counsel for any specific situation. This article does not create an attorney-client or appraiser-client relationship.