Terrestrial Energy Inc. (IMSR) vs NextNRG Inc. (NXXT)

A side-by-side comparison of Terrestrial Energy Inc. and NextNRG Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.

IMSR

Terrestrial Energy Inc.

$329M

$3.98UtilitiesDelayed quote: Oct 6, 2026, 11:35 AM EDT

NXXT

NextNRG Inc.

$10M

$0.65UtilitiesDelayed quote: Oct 6, 2026, 11:34 AM EDT

Total return — IMSR vs NXXT

growth of $100 · dividends reinvested · last 1y

IMSR -83.5% (-83.5%/yr)NXXT -96.7% (-96.7%/yr)IMSR compounded faster over this window

IMSR NXXT

IMSR vs NXXT: by the numbers

•IMSR is the larger company ($329M vs $10M market cap).
•Both run net losses; IMSR's is the smaller (0.00% vs -61.49% net margin).

Metrics side by side

Valuation

Metric	IMSR	NXXT
P/S ratio	N/A	0.11
P/B ratio	1.17	N/A

Profitability

Metric	IMSR	NXXT
Gross margin	0.00%	7.74%
Operating margin	0.00%	-85.77%
Net margin	0.00%	-61.49%
ROE	-17.47%	N/A
ROIC	-16.18%	-4960.20%

Growth (annualized)

Metric	IMSR	NXXT
Revenue CAGR (5Y)	N/A	75.93%
Total return CAGR (5Y)	N/A	-74.57%

Go deeper

Full IMSR analysis Full NXXT analysis Interactive comparison tool

Dig into the metrics

Terrestrial Energy ROE NextNRG ROE Terrestrial Energy operating margin NextNRG operating margin Terrestrial Energy revenue growth NextNRG revenue growth Terrestrial Energy free cash flow NextNRG free cash flow

Terrestrial Energy & NextNRG appear in these rankings

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Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.