Sidus Space (SIDU) is back on radar after its mid May Q1 2026 report, which showed higher year over year revenue, a smaller net loss, and confirmation of a recent US$58.5 million capital raise.

The earnings update and April capital raise appear to have reset expectations, with the share price returning 152.22% over 90 days and total shareholder return of 228.21% over one year, despite a weaker three year total shareholder return.

If Sidus Space’s recent surge has you looking beyond a single stock, this is a good time to scan for other space and AI infrastructure plays using the 46 AI infrastructure stocks

After such a sharp rebound, you need to ask whether Sidus Space’s new contract wins, Q1 momentum, and fresh US$58.5 million cash injection are already reflected in the US$5.12 share price, or if the market is still underestimating its prospects.

Preferred Price to Book of 8.7x: Is it justified?

On a P/B of 8.7x and a last close of $5.12, Sidus Space trades at a premium to the broader US Aerospace & Defense industry, even after a sharp rebound.

P/B compares the market value of the equity to its book value, which is useful for early stage or loss making companies where earnings based ratios are less meaningful.

For Sidus Space, the P/B of 8.7x is below the peer average of 19.3x flagged in the data, yet it remains above the US Aerospace & Defense industry average of 3.6x. This indicates that the stock is priced higher than the typical company in its sector but lower than its direct peer group on this metric.

Result: Price-to-book of 8.7x (ABOUT RIGHT)

However, you still need to weigh risks such as ongoing net losses of US$28.27 million and reliance on successful satellite contracts in a competitive sector.

Next Steps

With all this in mind, do you feel the recent momentum outweighs the concerns, or not? Act while sentiment is fresh and weigh up the 4 important warning signs

Looking for more investment ideas?

If you stop with one stock, you risk missing other opportunities that better fit your goals, risk comfort, and timeline, so keep your shortlist growing.

• Spot potential value opportunities early by scanning companies that screen as 49 high quality undervalued stocks before they hit everyone’s radar.
• Lock in more dependable cash flow by focusing on companies in the 10 dividend fortresses that already offer higher yields.
• Sleep easier at night by concentrating on resilient companies flagged in the 67 resilient stocks with low risk scores.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.