company post money equity · Announcement date · Oct 2, 2024
OpenAI ↗Main announcement
Artificial intelligence
OpenAI
OpenAI develops AI systems and tools, including ChatGPT.
01 / YOUR SCENARIO
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COMPANY VALUATION ILLUSTRATION
OpenAIOctober 2024 → March 2026 announced valuations
Your amount scaled by company valuation change
$54,267.52At the ending funding milestone · Mar 31, 2026
5.43×Valuation multiple
+442.7%Company valuation change
This is not an investment return. Company valuations include new capital; ownership dilution, share terms and investor access are not established.
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BEHIND THE NUMBERS
What this scenario means for an investor.
This view scales your amount by a change in company valuation. It compares financing milestones; it does not calculate the return on actual shares.
- Your amount vs. the investment minimum
- Your amount sets the size of the illustration. It does not establish the minimum required to join that funding round.
- Access depends on the offering
- Investor eligibility and allocations depend on the offering’s terms. A recorded funding price does not mean everyone could invest at that price.
- Direct shares and fund units differ
- A direct share and a unit in a fund or investment vehicle can have different rights and costs. This scenario does not establish a specific investment route.
- A price is not a cash exit
- Lockups, transfer restrictions and available buyers can affect a holder’s ability to sell. The displayed value does not assume a sale.
See the data, sources & calculation
The comparison scales an illustrative amount by announced company valuations only. Entity structure, profit rights, capitalization, dilution and completion of funding tranches are not assumed equivalent. No IPO or actual investor return is modeled.
Calculation: Amount × (ending company valuation ÷ starting company valuation).
company post money equity · Announcement date · Mar 31, 2026
OpenAI ↗Announcement date, opening paragraphs and stated financing status
Published price precision is retained in calculations. A filing snapshot is not necessarily the investment date. These selected companies and stages do not represent typical private-market results; investments can lose their entire value.
Try your own valuation assumptionOptional · explore a different company valuation without treating it as a stock quote.
Uses the illustrative amount entered above. A value of 1,000 means $1 trillion. This is your assumption, not a fetched market price.
YOUR ASSUMPTION · NOT AN INVESTMENT RETURN
Enter an assumed valuation to explore the arithmetic.
Formula: amount × (your assumed valuation ÷ reported starting valuation). Company valuation includes financing effects; dilution, share classes, investment access and selling rights are not established. This does not value an actual holding. Assumptions are not added to the evidence register. Choose Save research to keep this scenario in your account.
Understand the assumptions behind each result. How the calculations work →
Explore dilution & fee assumptionsOptional controls for a closer look at the same evidence.
VALUATION WORKBENCH
Explore a supported period.
Compare company valuations, then see how your assumptions change the illustration.
These figures are company valuations, not prices you could necessarily buy or sell at. The unadjusted illustration assumes unchanged proportional participation. Historical dilution, security rights and access remain unknown.
THE EVIDENCE, IN BRIEF
Can a funding valuation tell me what my OpenAI shares are worth?
No. The sourced comparison scales an illustrative amount by company valuation changes. Your optional private-price scenario instead uses two prices for the same comparable share or fund unit. It cannot establish the security rights, investment access, or price at which you could sell.
| Observation | Published value · USD | Date and meaning | Original evidence |
|---|---|---|---|
| October funding | 157,000,000,000 company post money equity | 2024-10-02 announcement | OpenAI ↗ Checked 2026-09-17 |
| March funding announcement | 300,000,000,000 company post money equity | 2025-03-31 announcement | OpenAI ↗ Checked 2026-09-17 |
| March 2026 company valuation | 852,000,000,000 company post money equity | 2026-03-31 announcement | OpenAI ↗ Checked 2026-09-19 |
WHEN YOU WANT TO GO DEEPER
The story behind OpenAI
What this shows
The workbench compares announced post-money company valuations, not an investor’s share price or realized return.
The endpoint matters
The latest observation in this collection is dated Mar 31, 2026. It is not a claim about the current valuation. Or enter two comparable private share prices in a separate assumption scenario.
Read it realistically
Your amount is hypothetical. The evidence does not establish your investment minimum, eligibility or ability to sell.
Company at a glance & business milestonesFrom a research launch to large funding announcements.
OpenAI develops AI systems and tools, including ChatGPT.
- Origins
- Publicly introduced in December 2015
- Industry
- Artificial intelligence
- Calculation coverage
- October 2024–March 2026 announcements
OpenAI’s 2015 launch described a nonprofit research company. Later funding announcements belong to a different stage of its development. The legal entity and security rights matter when comparing those stages; a founding commitment is not an ordinary stock purchase.
2015 launch announcement ↗ · Introducing OpenAI: launch date, organization and founding group.
A larger financing announcement
OpenAI announces $40 billion of funding at a $300 billion post-money valuation and a partnership with SoftBank Group.
Source ↗March 2026 funding close
OpenAI reports $122 billion in committed capital at an $852 billion post-money company valuation.
Source ↗
Historical context reviewed Sep 19, 2026. Business milestones are separate from the financial observations used by the calculator.
Compare the documented valuation periodsA fixed $10,000 illustration makes the entry points easier to compare.
Selected reviewed stages, not a complete fundraising history. The same hypothetical amount is used in every row. Private investments can lose all their value.
| Period | Valuation multiple | Illustrated amount | Explore |
|---|---|---|---|
| October 2024 → March 2025 announced valuations | 1.91× | $19,108.28 | Choose this period above ↑ |
| October 2024 → March 2026 announced valuations | 5.43× | $54,267.52 | Choose this period above ↑ |
| March 2025 → March 2026 announced valuations | 2.84× | $28,400.00 | Choose this period above ↑ |
These amounts scale by company valuation changes. They are not investor returns and do not establish equivalent securities or historical dilution.
What investors faced & what remains unknownAccess, share terms, risks and the limits of this research.
Context to keep in mind
Funding size, company valuation and investor payout are different quantities. We do not assume identical security rights or completed funding tranches across announcements.
CTM interpretation of the linked history and financing evidence; not a complete risk assessment.
What the evidence supports
The comparison scales an illustrative amount by announced company valuations only. Entity structure, profit rights, capitalization, dilution and completion of funding tranches are not assumed equivalent. No IPO or actual investor return is modeled.
- Investment minimum
- Not verified for these historical entries
- Actual access and allocation
- Not established
- Realized sale proceeds
- Not calculated
- Full funding history
- Not yet compiled; this is selected coverage
What additional research would unlock
A shareholder-return model would need comparable securities, prices, dilution and an appropriate exit or mark—not just company-level valuations.
How to read this company’s calculationOpenAI funding history: company valuation growth is not your investment return
This workbench compares OpenAI’s announced $157 billion post-money valuation in October 2024 with its announced $300 billion valuation in March 2025. They are selected historical funding milestones, not a claim about the latest valuation.
The illustration scales your chosen amount by the ratio between those company values. It does not establish a continuous investor security across the announcements. Capitalization, entity structure, profit rights, dilution and funding-tranche completion are not assumed equivalent.
Use the workbench to understand the scale of the announcements and test the sensitivity assumptions. The resulting amount is a valuation-ratio illustration—not an IPO outcome, share price, available investment or demonstrated return.
Supporting observations: October funding ↓March funding announcement ↓
Common questions
Is this an OpenAI IPO calculator?
No. This page compares two historical funding announcements. It does not model an IPO or claim a current listing status.
Does a $10,000 input mean I could have invested $10,000?
No. It is a mathematical input only. The announcements do not establish retail access, a minimum investment, your allocation or the rights of a security you could buy.
Why not call the change an investor return?
A company’s post-money valuation reflects its capitalization at a funding milestone. Without comparable security rights, ownership, dilution and an exit, the ratio cannot establish a holder’s return.
Research update · Sep 19, 2026
Added a separate private-share scenario using your entry and ending prices for comparable units.
Review dates describe our research. They do not turn historical prices into current quotes.Keep exploring
Financial observations & original sources3 sourced observations · expand to inspect each record
Milestones & evidence
3 sourced observationsAnnouncement date
October funding
B · Reported financing$157B USD
Post-money company valuation
Issuer reported $6.6B raised. Share-class and capitalization comparability are not verified.
Primary source checked
OpenAI · October funding announcement (opens in a new tab)Evidence details
- Publisher
- OpenAI
- Source location
- Main announcement
- Share class
- Not established in this record
- Checked on
- Sep 17, 2026
- Observation ID
- OAI-2024
Announcement date
March funding announcement
B · Reported financing$300B USD
Announced post-money company valuation
Issuer announced $40B in funding. Completion of all tranches is not established by this observation.
Primary source checked
OpenAI · March funding announcement announcement (opens in a new tab)Evidence details
- Publisher
- OpenAI
- Source location
- Main announcement
- Share class
- Not established in this record
- Checked on
- Sep 17, 2026
- Observation ID
- OAI-2025
Announcement date
March 2026 company valuation
B · Reported financing$852B USD
Post-money company valuation
OpenAI reports a closed round with $122 billion in committed capital. Commitment, cash disbursement and shareholder proceeds are different; security rights are not assumed continuous across rounds.
Primary source checked
OpenAI · March 2026 funding close (opens in a new tab)Evidence details
- Publisher
- OpenAI
- Source location
- Announcement date, opening paragraphs and stated financing status
- Share class
- Not established in this record
- Checked on
- Sep 19, 2026
- Observation ID
- OAI-2026
What’s missing matters.
There are no daily private-market prices between these observations. We do not fill the gaps with an invented curve. Investment returns require the specific security, entry terms, dilution and an actual exit or appropriate mark.
Explore all company histories