IonQ to Acquire Zero Trust Leader Elisity in $1.3 Billion All-Stock Transaction

Key numbers

Deal value	$1.1B
Share of market cap	8.3%
Share of annual revenue	884.5%

Key highlights

• Initial closing consideration of $1.15 billion in IonQ common stock
• Performance-based earnout of up to $150 million through January 2028
• Additional $100 million retention pool established for continuing employees
• Acquisition targets the $10 billion microsegmentation security market
• Expected transaction closure in the fourth quarter of 2026

What Is the Deal?

IonQ, Inc. (NYSE: IONQ) has signed a definitive agreement to acquire Elisity, Inc., a provider of Zero Trust networking solutions. The deal is structured as an all-stock transaction with a base value of $1.15 billion. The acquisition aims to integrate IonQ’s post-quantum cryptography (PQC) and quantum key distribution (QKD) assets with Elisity’s enterprise-grade security platform. This strategic combination is designed to help government and commercial customers transition to quantum-resistant security architectures, following recent federal directives mandating the migration of critical infrastructure to post-quantum standards by the late 2020s.

Down 4.2% since our story on 13 Oct: $36.27 when we broke it → $34.73 at the close on 13 Oct. Daily closing prices. Source: Yahoo Finance.

Show the prices

14 Sep	$37.50
15 Sep	$37.05
16 Sep	$36.84
17 Sep	$40.34
18 Sep	$39.13
21 Sep	$40.51
22 Sep	$40.74
23 Sep	$42.54
24 Sep	$44.98
25 Sep	$45.48
28 Sep	$44.58
29 Sep	$43.91
30 Sep	$43.86
1 Oct	$43.99
2 Oct	$43.77
5 Oct	$42.97
6 Oct	$43.29
7 Oct	$41.34
8 Oct	$39.45
9 Oct	$39.89
12 Oct	$36.27
13 Oct	$34.73

Deal Structure & Terms

• Closing consideration of $1.15 billion in shares, subject to leakage adjustments since July 2026
• Stock pricing based on a 20-day VWAP with a floor of $33.07 and a ceiling of $49.61 per share
• Maximum revenue-based earnout of $150 million achievable between August 2026 and January 2028
• Employee retention pool comprising $100 million in restricted stock units vesting over four years
• Transaction requires NYSE listing authorization and customary regulatory clearances for completion
• Termination rights established if the merger does not close by January 7, 2027

Strategic Rationale

The acquisition positions IonQ to capture a larger share of the microsegmentation market, which currently exceeds $10 billion in value. By embedding Elisity’s IdentityGraph technology into its quantum stack, IonQ can offer a vertically integrated platform that secures enterprise networks against both traditional machine-speed attacks and future quantum threats. This expansion follows a series of high-value acquisitions by IonQ, including the $1.8 billion purchase of SkyWater Technology and the $1.07 billion acquisition of Oxford Ionics, as the company seeks to control its entire hardware and security supply chain.

Business Overview

• Elisity reports consistent year-over-year doubling of revenue and total customer base
• Target company maintains zero churn across more than 100 global enterprise deployments
• IonQ's backlog of remaining performance obligations reached $485 million as of June 2026
• The combined entity will target double-digit CAGR opportunities in specialized security segments
• Integration follows IonQ’s transformation into a full-stack quantum foundry and services provider

Leadership Perspective

“With Elisity and its team as part of IonQ, we will be well positioned to help customers protect critical infrastructure and enterprise networks throughout the transition to the quantum era. As I said first, Q-Day is coming much faster than predicted.”

Management commentary

“Our customers need to prioritize post-quantum cryptography initiatives while securing existing assets to keep essential operations running. With IonQ, we will be optimally positioned to partner with them to modernize their crypto-agility programs.”

IonQ, Inc. · financial snapshot

Share price	$36.27
Market cap	$13.8B
Revenue (annual)	$130M
1-month price change	-1.55%
Sector	TechnologyComputer Hardware

Reference market data from a third-party provider, as of the story. Not a valuation or a recommendation.