Stock Analysis

Graphene Manufacturing Group (TSXV:GMG) Valuation After Rapid-Charging Graphene Aluminium-Ion Battery Progress

Recent updates from Graphene Manufacturing Group (TSXV:GMG) on its fast charging Graphene Aluminium Ion Battery technology, now reportedly reaching a full charge in under six minutes, have sharpened investor focus on the company’s path toward commercial deployment.

See our latest analysis for Graphene Manufacturing Group.

Those battery milestones seem to be feeding directly into sentiment, with the share price up strongly in recent months. This includes a triple digit 90 day share price return that suggests momentum is building despite a weaker three year total shareholder return.

If GMG’s story has you looking for the next potential mover in electrification and materials tech, this could be a good moment to explore high growth tech and AI stocks.

With the share price already surging and analyst targets still implying further upside, the key question now is whether GMG remains undervalued on its long term battery potential or whether markets are already pricing in that future growth.

Price-to-Book of 20.6x: Is it justified?

GMG last closed at CA$1.74, and that price currently embeds a steep price-to-book ratio of 20.6 times, hinting at elevated expectations versus fundamentals.

The price-to-book multiple compares a company’s market value to the net assets on its balance sheet. It is a common yardstick for early stage and asset light innovators like GMG. In this case, investors are paying a substantial premium to the company’s book value, suggesting the market is heavily discounting future graphene and battery commercialisation rather than present day financials.

That premium stands out starkly next to the North American Electrical industry’s average price-to-book of 2.7 times. This implies GMG trades at a level usually reserved for the most aggressively valued growth stories in the space. Even when compared with a peer group average of 36.1 times, GMG screens as cheaper, but still firmly in high expectation territory where execution on growth will be closely watched.

See what the numbers say about this price — find out in our valuation breakdown.

Result: Price-to-book of 20.6x (OVERVALUED)

However, significant execution risk around scaling commercial production and persistent losses from net income of approximately A$9.4 million could quickly undermine today’s lofty expectations.

Find out about the key risks to this Graphene Manufacturing Group narrative.

Another View: What Does Our DCF Say?

While the rich 20.6 times price-to-book ratio suggests optimism, our DCF model paints a very different picture, indicating that GMG is trading about 67% below its estimated fair value. If the cash flows eventually follow the battery story, could today’s premium multiple still represent a long-term bargain?

Look into how the SWS DCF model arrives at its fair value.

GMG Discounted Cash Flow as at Dec 2025
GMG Discounted Cash Flow as at Dec 2025

Simply Wall St performs a discounted cash flow (DCF) on every stock in the world every day (check out Graphene Manufacturing Group for example). We show the entire calculation in full. You can track the result in your watchlist or portfolio and be alerted when this changes, or use our stock screener to discover 911 undervalued stocks based on their cash flows. If you save a screener we even alert you when new companies match - so you never miss a potential opportunity.

Build Your Own Graphene Manufacturing Group Narrative

If you see the story differently or want to dig into the numbers yourself, you can build a tailored view in just minutes: Do it your way.

A great starting point for your Graphene Manufacturing Group research is our analysis highlighting 2 key rewards and 4 important warning signs that could impact your investment decision.

Ready for more high conviction ideas?

Before momentum in GMG moves on without you, lock in your next opportunities using the Simply Wall St Screener so you are never short of compelling ideas.

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.

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About TSXV:GMG

Graphene Manufacturing Group

A clean-technology company, engages in the manufacture of graphene powder and energy saving and energy storage solutions enabled by graphene in Australia.

Excellent balance sheet with slight risk.

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