York Space Station (YSS): Defense-Space IPO Opens Higher, Fades Through Issue Price

York Space Station (YSS): Targets $4B Valuation as Defense-Space Momentum Fuels January IPO

US-EU Index Rebalances / Quantitative Researcher

Dimitris Ioannidis

Global Financial Data and Analytics Platform

ORTEX

ORTEX is a global financial data and analytics platform providing real-time securities lending and short interest data, index rebalance data, holdings and insider transactions, trading signals, corporate actions and news,  stock machine learning and factor scores and other analytics. The majority of the data are downloadable and accessible through APIs.

Index Rebalance

<ul>
<li>
<a href="https://www.smartkarma.com/entities/york-space-systems-inc" target="_blank" data-smartkarma-citation="entities:46299:1" rel="noopener">York Space Systems (YSS US)</a> went public on 29 January 2026 on NYSE with a float of 15% and has a current market cap of $3.5bn.</li>
<li>Inclusion in US indices is anticipated in March with a significant upweight in September 2026 following the IPO lock-up expiry.</li>
<li>
<a href="https://www.smartkarma.com/entities/york-space-systems-inc" target="_blank" data-smartkarma-citation="entities:46299:1" rel="noopener">York Space Systems (YSS US)</a> is expected to be excluded from Global indices at least in the short-term due to insufficient market cap and float cap.</li>
</ul>



York Space Systems (YSS US) went public on 29 January 2026 on NYSE with a float of 15% and has a current market cap of $3.5bn.
Inclusion in US indices is anticipated in March with a significant upweight in September 2026 following the IPO lock-up expiry.

York Space Systems (YSS US) is expected to be excluded from Global indices at least in the short-term due to insufficient market cap and float cap.


York Space Systems (YSS US): Launching Into US Index Inclusion in March & Upweight in September