US NUCLEAR CORP.

Distressed radiation-detection micro-cap with deeply negative returns, negative equity, and very weak liquidity.

Strengths

• Decent gross margin 50.3% (64th pct) and established niche product line/customer base
• Long operating history with diversified government and institutional customers

Risks

• Deeply negative profitability — net margin -57%, ROA -64% (8th pct); ROE 2.4x is a negative-equity artifact
• Severe liquidity strain — quick ratio 0.18 (8th pct), current ratio 0.68
• Negative book equity (D/E -1.03) and intense competition from far larger players

Notable findings

• Exec changeRecent 8-K item 5.02 8-K ↗
• Negative equityNegative book equity (debt/equity -1.04)
• Net lossNet loss (net margin -57.1%)
• Weak liquidityCurrent ratio 0.68 (<1)
• Customer concentration~85% of revenue from one customer/distributor — 85% of our total revenue in 2025
• Chronic dilutionShare count +20%/yr over 3y (dilution)