Most angel checks do not buy stock on the day they are written. They buy a contractual right to receive stock later, at a price a formula computes - and almost nobody reads the formula closely enough to know what it will say.
10 min read · Level 3
I think the most useful thing a new angel can learn is that the document they are about to sign is not a receipt for ownership, it is a formula for computing ownership later, and formulas reward the party who understood them before signing rather than the party with the better intentions. That sounds like a small distinction and it is not: the same 25,000, the same company, and the same eventual round produced a 60.0% difference in shares purely from which of two clauses happened to bind, and neither clause was hidden - both were sitting in the document the whole time, in plain language, unread with the same attention a public investor would give a prospectus for a fraction of the money. What follows from that is not cynicism about the instrument. SAFEs exist because a full priced negotiation at the earliest stage would often cost more in legal fees than the cheque itself, and that trade-off is usually the right one. What follows is a much narrower discipline: do the division before you wire the money, not after the next round has already decided it for you, because by the time the cap table is updated the formula has already run and there is no renegotiating an outcome that was determined by arithmetic you could have done in five minutes.
Almost every first-time angel believes that signing a document and wiring money means they now own a piece of the company. In most seed-stage checks, that is not what happened. What was signed is a promise to issue shares later, at a price nobody computes until a subsequent, priced financing round sets it - and that round can take eighteen months to arrive, or never arrive at all. Until it does, the investor holds a claim on a future event, not a security representing the company today.
There are three genuinely different instruments in circulation, and a first-time investor is often handed one without being told which:
Instrument What you hold today Becomes shares Downside if the company fails SAFE A contractual right to future shares At the next qualifying round Nothing - it is not debt Convertible note A debt claim, with interest At the next round or maturity A repayment claim, often behind other creditors Priced equity Preferred shares, today Immediately A liquidation preference, from day one
The SAFE - a Simple Agreement for Future Equity, published as a standard template by a well-known startup accelerator in 2013 and now the most common instrument at the earliest stage - converts on two numbers. The valuation cap sets a maximum company value the investor's conversion price can be based on, protecting them from paying a later, higher round's price for shares that were promised earlier and more cheaply. The discount, where one exists, gives a flat percentage off whatever the next round's price turns out to be. When both are present, the investor gets whichever produces the lower price per share - the more favourable one to them.
A convertible note is the same idea wearing debt's clothing: it accrues interest, it has a maturity date, and if the company never raises another round it is technically a debt the company owes back, though in practice a failed startup rarely has cash to repay it. Priced equity skips the promise entirely and issues preferred shares immediately, at a price the round itself negotiates - which is a different pricing question, covered in lesson three.
Whatever the instrument, the eventual share count depends on the company's cap table - the running ledger of who owns what, and on what terms, before and after the raise. A cap table is not published anywhere public; it is maintained by the company's own counsel or a captable software vendor, and an investor's stated ownership percentage is only ever as good as that document being current and accurate.
And the whole subject sits inside a wider fact worth stating plainly at the outset: none of this trades. There is no venue, no order book, no daily quote. What a stake is worth between financing events is whatever the last round implied, and what it is worth if you need cash next month is, in the overwhelming majority of cases, nothing at all - because there is no buyer to sell it to. Private markets solve the pricing and liquidity problem that public markets solve continuously, only in discrete, infrequent, negotiated jumps.
Because the difference between a SAFE, a note and priced equity decides how many shares a given check actually buys, and that decision is made once, in a document most first-time investors sign without modelling.
The cap and the discount are not decorative. They are the entire pricing mechanism for a SAFE, and getting them backwards - or not noticing which one binds - changes the investor's eventual ownership by a large multiple for the identical dollar amount invested, as the worked example in this lesson shows arithmetically.
There is a second reason the instrument matters that has nothing to do with the price: what happens if the company simply stops operating without a next round ever occurring. A SAFE holder has no claim at all in that case beyond whatever assets remain, pro rata with other equity-like claims. A note holder is nominally a creditor and sits ahead of equity in a wind-down, which sounds like protection until you notice that a failed startup usually has closer to nothing than something to distribute, making the seniority theoretical rather than practical for most outcomes.
The cap-table point is the one least appreciated by newcomers. An investor's percentage ownership is only ever a fraction: their shares divided by the company's total fully diluted share count, and that denominator is controlled entirely by people the investor has no vote over - the founders, the board, and whoever negotiates the next round. A cap that looked generous against today's share count can be diluted before it is ever tested, which is the subject of lesson four.
And underneath all of it sits the illiquidity point, because it changes what every other number in this lesson means. A public shareholder who dislikes a company's direction can sell in seconds. A SAFE or note holder who wants out has, in the ordinary case, no mechanism to do so at all before an acquisition or an initial public offering realises the position - which is why lesson six treats sizing as the central decision in this asset class rather than an afterthought to it.
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Educational, not personalised financial advice. Nothing in the Investor Academy is a recommendation to buy, sell or hold anything — what is right for you depends on your own circumstances and the rules where you live.
Sources: U.S. SEC - Investor.gov; U.S. SEC - accredited investor resources; FINRA - investor information
An angel invests 25,000 through a SAFE carrying a 5,000,000 valuation cap and a 20% discount, whichever converts more favourably.
Eighteen months later, the company raises a priced Series Seed round at 1.00 a share, against a pre-round fully diluted share count of 10,000,000 shares (this figure excludes the new round's own shares, and for this SAFE, includes the SAFE holder's shares-to-be-issued in the pre-money count - a convention worth confirming on any real SAFE, since it is not universal).
Cap price 5,000,000 / 10,000,000 = 0.50 a share Discount price 1.00 x (1 - 0.20) = 0.80 a share Conversion price the lower of the two = 0.50 a share (the cap binds)
Shares received 25,000 / 0.50 = 50,000 shares Ownership before the round's new money 50,000 / 10,000,000 = 0.500%
What the discount alone would have produced. Without the cap, the same 25,000 would have converted at 0.80 a share: 25,000 / 0.80 = 31,250 shares, or 0.3125% of the same 10,000,000. The cap therefore delivered 50,000 / 31,250 = 1.6 times as many shares - 60.0% more - for the identical 25,000 cheque. Which term binds is not a detail; on these numbers it is the difference between a 0.500% stake and a 0.3125% one.
Then the new round dilutes everyone, including the SAFE holder's freshly converted shares. Say the round raises 2,000,000 of new money at the same 1.00 a share, issuing 2,000,000 new shares. Total shares after the round: 10,000,000 (pre-round, including the SAFE conversion) + 2,000,000 (new money) = 12,050,000 once the SAFE's own 50,000 are added to the 10,000,000 base.
Post-round ownership 50,000 / 12,050,000 = 0.4149% Pre-money valuation of the round (10,000,000 + 50,000) x 1.00 = 10,050,000 Post-money valuation 10,050,000 + 2,000,000 = 12,050,000
The SAFE holder's paper stake is now worth 50,000 x 1.00 = 50,000 - double the 25,000 invested, a 100.0% unrealised mark. It is also, at this point, worth exactly nothing in cash: there is no buyer, no market, and no way to convert that mark into money without an acquisition, an initial public offering, or a rare secondary sale.
Believing a signed SAFE means shares have already been issued. In the ordinary case nothing has been issued yet, and nothing will be until a triggering event - most often the next priced round - actually happens, which can take years or never happen.
Reading a 5,000,000 cap as a claim that the company is worth 5,000,000. A cap is a ceiling on the price the investor's own conversion is based on. It says nothing about what any other investor, the founders, or the market would agree the company is worth - and most caps are set well above what a company could actually raise a priced round at, precisely so the cap rarely binds against the company's interest.
Not checking whether a SAFE is priced on a pre-money or a post-money basis. A post-money SAFE - the form now most widely used - defines the cap as a fixed percentage of the company after that SAFE's own money and before the next round; a pre-money SAFE defines it before. The identical cap figure produces different ownership under the two forms, especially once several SAFEs are stacked ahead of a single priced round, and conflating them is the single most common reading error on a real cap table.
Assuming the discount and the cap add together. They do not. The investor receives whichever of the two produces the lower conversion price - not both applied in sequence, and not an average of the two.
Treating an unrealised mark as money. The 50,000 valuation in the worked example is an accounting figure implied by the last round's price. It is not cash, it cannot be spent, and it can fall to zero at the next round without a single share being sold by anyone.
Read the first page, not the term sheet's summary. A SAFE, a convertible note and priced equity are three different legal relationships with three different outcomes if the company never raises again, and the document's own title is usually explicit about which one it is.
Do the division on both formulas - cap divided by the pre-round share count, and the round price reduced by the discount percentage - and take the lower one. On the numbers in this lesson that was a 60.0% difference in shares for an identical cheque, which is too large a gap to leave to reading comprehension alone.
This single word changes what the same cap figure means, particularly once more than one SAFE has been issued ahead of the same priced round. If the document does not say plainly, ask before wiring money, not after.
A percentage quoted in conversation is only as good as the fully diluted share count it was computed against on a specific day. Request the actual document, note its date, and treat any number older than a few months as provisional.
For a SAFE, ordinarily nothing - no shares, no claim beyond a residual equity-like interest in whatever assets remain. For a note, a technical debt claim against a company that, in this scenario, has typically stopped having cash to repay it. Knowing which one you hold changes what you should expect from a company that quietly stops growing rather than formally failing.
Before wiring any money into an early-stage company, whenever a term sheet or SAFE arrives without an accompanying explanation of its cap and discount, and any time an investor is asked to compare two deals with different instruments as though they were the same kind of commitment.
Do not use this lesson to conclude that a SAFE is inferior to priced equity - it exists because it is fast and cheap for both sides at a stage where a full priced negotiation would cost more in legal fees than the round itself. And do not treat the worked example's numbers as typical; caps, discounts and pre-round share counts vary enormously by company and stage.
Investors who have seen one company's SAFE frequently assume every other company's works the same way, and the pre-money versus post-money distinction is exactly where that assumption breaks. A post-money SAFE fixes the investor's percentage as a share of the company after that SAFE's own money and before the next round; a pre-money SAFE fixes it before, which means the investor's eventual percentage depends on how many other SAFEs were issued ahead of theirs - something a single document rarely discloses on its own. The confusion is rarely caught until a cap table is finally assembled ahead of a priced round, at which point the ownership implied by the paperwork and the ownership the investor believed they had can differ meaningfully, with no error having been made by either side - only two documents using the same word to mean two different calculations.
Before relying on any cap figure, confirm in the document's own words whether the SAFE is pre-money or post-money. The same number means two different things under the two forms.
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