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Alt-X (YC W26) — Building the best venue for private markets exposure

Alt-X is building the AI-native liquidity layer for private markets. Private markets have created trillions of dollars in value, yet remain fragmented, illiquid, and inaccessible.

Alt-X is a Y Combinator company in the Winter 2026 batch. Its directory entry describes it as: Building the best venue for private markets exposure. The founders listed are Ryan Samadi (Founder/CEO), Michael Wachsman (Founder/CTO) (Y Combinator directory entry, October 22, 2025).

6 more companies from YC Winter 2026 ↓

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Alt-X

New accelerator entry · 2025-10-22 · the record

Winter 2026
batch
2
people
Early
stage
United States of America
region
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What the record says

BatchWinter 2026
Announced2025-10-22
StageEarly
StatusActive
Team size2
IndustryFintech
Sub-industryFintech
RegionsUnited States of America, America / Canada
BasedLos Angeles, CA, USA
HiringNo
Sitehttps://alt-x.co
Founded2025
YC group partnerGarry Tan

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Also in YC Winter 2026

Same batch, Fintech first.

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In their words

Alt-X is building the AI-native liquidity layer for private markets. Private markets have created trillions of dollars in value, yet remain fragmented, illiquid, and inaccessible. While public markets benefit from exchanges, market makers, brokerages, and data infrastructure, private markets still rely on brokers, spreadsheets, and manual workflows to connect buyers and sellers. Alt-X uses AI to automate the core functions required to make private assets liquid. We streamline diligence, valuation, investor matching, and transaction execution, reducing the friction that makes private-market transactions slow, expensive, and opaque today. Our initial focus is venture-backed secondaries. We source opportunities from founders, employees, and early investors while building a network of accredited investors seeking exposure to the world's most valuable private companies. Over time, we believe every private asset—from startup equity to private credit and alternative investments—will require modern liquidity infrastructure. Building trusted infrastructure for private markets is difficult. Transactions involve complex diligence, fragmented information, transfer restrictions, and significant compliance requirements. Alt-X is focused on creating systems that can support real transactions at scale, not just marketplace listings. Ryan Samadi (Stanford CS/AI, former Citadel commodities trader) and Michael Wachsman (Cornell CS, infrastructure engineer) are building Alt-X because they believe ownership of innovation should be more liquid, transparent, and accessible. Today, Alt-X has sourced over $1.5 million in transaction opportunities and assembled a network of 40 accredited investors representing hundreds of millions of dollars in investable assets. Our mission is to democratize ownership of innovation by building the financial infrastructure that private markets have never had.

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Example from a real report (our sample on Target): “The Q2 2026 earnings report, published August 19, 2026, showed adjusted EPS of $2.46 against an expected $2.33” Source: CNBC

A Full Report on Alt-X: verified, sourced, every claim cited, ready in a few minutes. See pricing.

What the Full Report on Alt-X covers

  1. The Short Answer

  2. Which Company This Is

  3. What They Do, And How The Money Works

  4. Who Runs It, And How To Reach Them

  5. The Money: Funding, Valuation, Runway

  6. Who Pays Them, And Who They Are Up Against

  7. Warning Bells

  8. Sources

    1 cited source found

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Alt-X: Accepted into Y Combinator Winter 2026
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Permanent URL: https://mentionfox.com/funding/yc-alt-x
Last updated 2026-10-27
Primary record: Y Combinator directory entry
Alt-X (YC W26) — Building the best venue for private markets exposure. MentionFox, 2026-10-27. https://mentionfox.com/funding/yc-alt-x