Fluence Energy (FLNC) has just been removed from several Russell value indices at the same time it launched its higher density Smartstack 10 MWh storage system, a combination that may influence how investors view the stock.

Fluence Energy’s recent index removals sit alongside a mixed price pattern, with the 1-day share price return of 3.81% and 90-day share price return of 52.69% contrasting with a year-to-date share price return that is down 13.60%. At the same time, the 1-year total shareholder return of 170.84% points to strong longer term momentum despite a 3-year total shareholder return that is down 23.98%.

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So with Fluence Energy trading at a discount to one set of valuation estimates but already delivering a very large 1-year return, is this an overlooked opportunity, or a stock where the market is already pricing in future growth?

Most Popular Narrative: 6.9% Overvalued

On the most followed narrative, Fluence Energy’s fair value of $18.59 sits below the recent $19.88 close. This frames the current price as slightly ahead of that model.

The growing backlog exceeding $4.9 billion, expanding international pipeline, and initial traction for next-generation products (e.g., Smartstack) set the stage for an eventual rebound in order volumes, margin expansion from operational efficiencies, and a path back to positive free cash flow as uncertainty recedes and the storage market resumes robust growth.

Curious what supports that fair value cut below today's share price? The narrative leans on faster revenue growth, improving margins, and a future earnings multiple that might surprise you.

Result: Fair Value of $18.59 (OVERVALUED)

However, this Fluence Energy narrative still faces real tests, including ongoing tariff uncertainty on Chinese batteries and the risk that large projects continue to be delayed or repriced.

Another View: Fluence Energy Looks Cheap on Sales-Based Metrics

The narrative-backed fair value for Fluence Energy sits at $18.59, which is below the recent $19.88 share price and frames the stock as 6.9% overvalued. Yet on a simple P/S lens, Fluence trades around 1x sales versus an estimated fair ratio of 3.6x, peers at 5.4x, and the US Electrical industry at 2.9x. This points to a wide gap that could signal either mispricing or meaningful risk the market still sees, so which side of that trade do you think is more realistic?

Next Steps

With mixed signals around Fluence Energy so far, do you want to rely on others or weigh the trade off between risks and rewards yourself? A quick way to pressure test the current story is to compare the company's key positives against the 3 key rewards and 2 important warning signs

Looking For More Investment Ideas Beyond Fluence Energy?

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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.