StockStory analysts advise against adding Ameresco to a portfolio, citing persistent cash flow deficits and a heavy debt load. Despite a 19.2% decline in Ameresco's stock price over the past six months to $21.01, the firm argues that the lower entry price does not offset fundamental risks. This underperformance contrasts sharply with the S&P 500's 14.3% gain during the same period.
The primary concern is that Ameresco has become less profitable on a per-share basis as it has expanded. Over the last five years, earnings per share declined by 15.7% annually, even as revenue grew by 12.5%. This divergence suggests that incremental sales were not translating into profitable growth, potentially due to excessive spending.
Free cash flow is a critical metric in this assessment because it accounts for all operating and capital expenses, making it difficult to manipulate. Ameresco's free cash flow margin averaged negative 28.3% over the last five years, meaning the company lost $28.35 in cash for every $100 in revenue. Such demanding reinvestments have drained resources and limited the company's ability to return capital to investors.
The risk of permanent capital loss is heightened by Ameresco's balance sheet. The company burned through $429.9 million of cash over the last year and carries $2.02 billion in debt, which exceeds its $138.3 million in cash on hand. StockStory identifies indebted, loss-making companies as a source of trouble, distinguishing this structural risk from short-term stock price volatility.
Unless fundamentals improve quickly, Ameresco may be forced to raise capital from investors to continue operating. This would likely result in dilution, a headwind for shareholder returns. The analysts remain cautious until the company generates consistent free cash flow or its announced financing plans materialize on the balance sheet.
At $21.01 per share, the current valuation is considered reasonable but not an opportunity. StockStory recommends looking elsewhere for more exciting investments, specifically pointing to software stocks.
The firm also highlights its screening process for growth stocks, noting that top winners often feature rapid revenue growth. Past examples include Meta, CrowdStrike, and Broadcom, which returned 315%, 314%, and 455% respectively. Other names on their list include Nvidia, which rose 1,460% between June 2020 and June 2025, and Exlservice, which gained 271% over the same period.