Arqit Quantum Inc vs Williams Companies Inc — how do they compare? Arqit Quantum Inc trades at $23.43 (market cap $424.79M), while Williams Companies Inc trades at $73.59 (market cap $88.45B). The key difference: Williams Companies Inc is far larger — about 208.2× Arqit Quantum Inc's market cap, and Williams Companies Inc pays a 2.9% dividend while Arqit Quantum Inc pays none. Which is the better fit depends on your goals.
| ARQQ | WMB | |
|---|---|---|
Market Cap | $424.79M | $88.45B |
Sector | Technology | Energy |
52-Week High | $58.27 | $79.40 |
52-Week Low | $11.78 | $56.51 |
Enterprise Value | $398.10M | $119.07B |
Dividend Yield | — | 2.9% |
Signals from Pluang's Aura AI — not financial advice
ARQQ trades at $24.10, up 6.59% today, with a bullish technical signal from moving averages. The company shows explosive revenue growth (829% YoY in H1 2026) but remains deeply unprofitable with a -4,508% net margin. Recent news highlights quantum-safe encryption partnerships with telecom and government clients, driving investor optimism despite significant financial losses.
Outlook remains speculative with high risk/reward profile. The quantum security market offers substantial growth potential, but ARQQ must demonstrate path to profitability amid heavy operating losses. Analyst consensus is divided (50% Buy, 50% Hold), reflecting uncertainty about timeline for sustainable operations.
WMB trades at $73.72, up 2.6% today, with a bullish technical signal and strong analyst support. The company reported mixed quarterly earnings but raised full-year EBITDA guidance to $8.4 billion following its $5.5 billion acquisition of Momentum Midstream, enhancing its Gulf Coast footprint. Fundamentals show robust profitability with a 25.18% net income margin and 24.02% ROE, though valuation multiples like a P/E of 28.81 appear elevated.
The outlook is positive, driven by growth initiatives and stable cash flows, but risks include execution of the large acquisition and sensitivity to energy demand. With a consensus price target of $87.14 implying 18% upside, the stock offers growth potential tempered by integration challenges and debt levels.
Trailing returns across standard periods
Arqit Quantum provides advanced cybersecurity software that uses symmetric key agreement technology. Its solutions protect networked devices and data against current and future cyber threats, including quantum attacks.
Read more on ARQQ →Williams is a midstream energy company that owns and operates the large Transco and Northwest pipeline systems and associated natural gas gathering, processing, and storage assets. In August 2018, the firm acquired the remaining 26% ownership of its limited partner, Williams Partners.
Read more on WMB →