A5X
PrivateLast Round
Series D
Sep 14, 2026
Est. Valuation
$525M
Total Funding Raised
$107.6M
Momentum
Top 5%
of companies Caplight tracks
Company Overview
A5X operates in FinTech and is based in São Paulo. Its latest recorded funding round was a Series D round in September 2026.
A5X is a financial technology company that operates a derivatives and futures exchange platform designed to provide modern, efficient, and transparent market infrastructure for the Brazilian financial market.
Sector
FinTech
Verticals
Investment Platforms, Financial Data, Compliance & Risk, RegTech
Business Model
B2B
Customer Profile
Marketplace Commission, Data as a Service, Subscription SaaS
AI Layer
Non-AI
Historical Pricing
Historical view of private secondary pricing and transaction trends.
A5X Comparables
Compare A5X with similar companies based on industry and business-model similarity.
| Company | Similarity | Market Cap |
|---|---|---|
| Base Exchange | 79% | |
| B3 S.A. – Brasil, Bolsa, Balcão | 79% | |
| Matba Rofex | 73% |
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A5X Funding Rounds
Historical fundraising activity
| Round | Date | Amount Raised | Valuation | Investors | Sources |
|---|---|---|---|---|---|
| Series D | Sep 14, 2026 | ||||
| Series C | Sep 16, 2025 | ||||
| Series B | Jan 9, 2025 | ||||
| Series A | Jun 18, 2024 |
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Key People
Founding team and executive leadership
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A5X Investors
Notable investors and investment history
| Investor | Rounds |
|---|---|
| IMC | Series B, Series C, Series D |
| XTX Markets | Series B, Series C, Series D |
| Morgan Stanley | Series D |
| Optiver | Series B, Series C, Series D |
| ABN AMRO Clearing | Series B, Series C, Series D |
| Goldman Sachs | Series D |
| XP Inc. | Series D |
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Market signals
Structured signals derived from secondary market and firmographic data.
- Sep 14, 2026
$70M round led by Goldman Sachs and Morgan Stanley.
- Aug 1, 2026
Grew 19% QoQ, from 120 to 143 employees.
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Recent news
Latest coverage and updates
- launchesNov 9, 2026
A5x plans to launch derivatives linked to MSCI's Brazilian indexes as part of its planned exchange operations, which start in H1 '27.
- partners_withNov 9, 2026
In Brazil, A5x partners with MSCI Inc. to launch derivatives of MSCI Inc.'s benchmarks as the startup exchange looks to begin operations in 2027.
- hiresOct 30, 2026
A5x hires Ricardo Nilsen as chief information security officer to oversee cybersecurity, fraud prevention and data privacy, strengthening its team ahead of its scheduled H1 '27 launch in Brazil.
- attends_eventSep 24, 2026
A5x is set to host the inaugural Singapore Defense Tech Hackathon from Sep 25th–27th '26 in Singapore, with 300 participants.
- receives_financingSep 14, 2026
A5x receives $143M in Series D financing led by Morgan Stanley, Goldman Sachs and Kaszek on Sep 14th '26 in Brazil to fund operations, regulatory capital and scaling through breakeven.
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A5X Filings
Explore SEC and related filing metadata, where available.
| Type | Date | Amount Offered | Amount Sold | Filing | Pages | Download |
|---|
Filing documents are not displayed on this public page. Request access to learn about available coverage.
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Frequently Asked Questions
Common questions about A5X's valuation, stock price, and market status.
Is A5X a public or private company?
A5X is a private company.
What is the current stock price of A5X?
A5X is a private company, so its shares have no public market price. Caplight tracks A5X's secondary market activity and provides MarketPrice™ estimates of its share price to Caplight users.
How much is A5X worth (valuation)?
A5X's valuation is estimated at $525.0M based on funding round data.
Can I buy A5X stock?
A5X shares may be available on secondary markets subject to transfer restrictions. Caplight facilitates secondary market transactions for accredited investors.
When was A5X's last funding round?
A5X's most recent funding round was Series D on September 14, 2026.
Who are the main investors in A5X?
Key investors in A5X include Morgan Stanley, Goldman Sachs, Kaszek.
Will A5X IPO soon?
No public IPO plans have been announced for A5X.
How can I track A5X secondary market activity?
Caplight tracks bids, offers, and trades in A5X's shares on secondary markets.