Spero Therapeutics (SPRO) AI Stock Analysis

• Market Cap: $159.35M
• Dividend Yield: N/A
• Average Volume (3M): 8.20M
• Price to Earnings (P/E): 10.8
• Beta (1Y): 1.95
• Revenue Growth: -71.68%
• EPS Growth: -397.61%
• Country: US
• Employees: 32
• Sector: Healthcare
• Sector Strength: 53
• Industry: Biotechnology
• EPS (TTM): -0.25
• Shares Outstanding: 55,910,640
• 10 Day Avg. Volume: 2,251,918
• 30 Day Avg. Volume: 8,198,257
• PEG Ratio: 0.02
• Price to Book (P/B): 0.86
• Price to Sales (P/S): 0.00
• P/FCF Ratio: -8.41
• Enterprise Value/Market Cap: -0.23
• Enterprise Value/Revenue: -0.14
• Enterprise Value/Gross Profit: -1.08
• Enterprise Value/Ebitda: 0.29
• 1Y Price Target: $5.00
• Price Target Upside: 72.41% Upside
• Rating Consensus: Hold
• Number of Analyst Covering: 1

• Rating: 48 Neutral
• Price Target: ―

Spero Therapeutics is currently facing significant financial and operational challenges, as evidenced by declining revenues, negative profit margins, and operational inefficiencies. Technical analysis suggests ongoing bearish momentum, while valuation metrics highlight financial struggles due to a negative P/E ratio. The earnings call highlighted promising developments in their tebipenem HBr program, but these are offset by setbacks in other trials and increased financial losses. The overall score reflects these mixed but predominantly negative factors.

Positive Factors

FDA Approval

The FDA has indicated positive results from PIVOT-PO along with data from prior clinical trials would be sufficient to approve tebi in cUTI and for limited use in acute pyelonephritis.

Financial Stability

Cash of $53M, together with existing non-dilutive funding commitments, should provide OpEx runway into 2Q26.

Partnership Milestones

Spero's partner GlaxoSmithKline plc remains slated to pay the following potential additional milestone/royalty payments: up to a further $25M in clinical development-related milestones, up to $150M in commercial milestones based on initial sales, and up to $225M in sales-based milestones.

Negative Factors

Financial Performance

SPRO reported 1Q25 net loss of $13.9M.

Product Discontinuation

'206 has been discontinued.

Regulatory Issues

Spero responded to a 'Wells Notice' from the staff of the Boston Regional Office of the U.S. Securities and Exchange Commission regarding its preliminary determination to recommend a civil enforcement action or administrative proceeding against Spero.

Spero Therapeutics Business Overview & Revenue Model

Company Description

Spero Therapeutics, Inc. (SPRO) is a clinical-stage biopharmaceutical company dedicated to developing and commercializing novel treatments for bacterial infections, including multi-drug resistant bacterial infections. The company focuses on its proprietary platform in developing a pipeline of therapeutics to address critical unmet medical needs, particularly in the area of gram-negative bacterial infections. Spero's core products include SPR994 (tebipenem HBr), an oral antibiotic candidate for treating complicated urinary tract infections, and SPR720, an oral antibiotic candidate for treating non-tuberculous mycobacterial pulmonary disease.

How the Company Makes Money

Spero Therapeutics makes money primarily through the development and commercialization of its proprietary antibiotics. Revenues are generated through partnerships, collaborations, and licensing agreements with other pharmaceutical companies and organizations, which provide funding for the development of its drug candidates. These partnerships often involve milestone payments, royalties, and shared profits from successfully developed products. Additionally, the company may receive grants and research funding from government and non-profit entities to support its research and development efforts. Key factors contributing to Spero's earnings include the successful progression of its drug candidates through clinical trials and eventual regulatory approval and commercialization.

Spero Therapeutics Financial Statement Overview

Summary

Spero Therapeutics faces significant financial challenges, particularly in profitability and cash flow management. Revenue instability and negative net income margins highlight operational inefficiencies. Although the balance sheet remains stable with manageable debt levels, the decline in equity ratio and return on equity suggests potential financial stress. The company's cash flow position indicates ongoing operational cash constraints, necessitating strategic adjustments to enhance financial performance.

Income Statement

Spero Therapeutics experienced significant revenue volatility with a decline from $96.7M in 2023 to $47.9M in 2024. The gross profit margin was stable at 100% due to cost alignment with revenue. However, the net profit margin deteriorated from 23.6% to -142.9% over the same period, indicating challenges in managing costs and expenses. EBIT and EBITDA margins also turned negative, reflecting operational inefficiencies.

Balance Sheet

The company's debt-to-equity ratio improved from 0.05 in 2023 to 0.09 in 2024, showcasing a manageable debt level relative to equity. However, the return on equity fell drastically from 21.3% to -148.6%, which suggests a reduction in shareholder value. The equity ratio decreased from 58.6% to 41.7%, indicating a weaker financial position with increased liabilities.

Cash Flow

Free cash flow remained negative but improved slightly from -$33M to -$23.4M in 2024. The operating cash flow to net income ratio was negative, reflecting cash flow challenges from operations. Despite these issues, the company managed cash reserves, maintaining a relatively stable cash position.

Breakdown
TTM	Dec 2024	Dec 2023	Dec 2022	Dec 2021	Dec 2020
Income Statement		Total Revenue
34.72M	27.40M	96.73M	48.58M	18.26M	9.33M
	Gross Profit
34.71M	27.39M	96.37M	47.03M	17.14M	-57.67M
	EBIT
-74.11M	-73.36M	21.48M	-42.20M	-87.97M	-79.11M
	EBITDA
-73.23M	-73.36M	25.77M	-42.26M	-87.17M	-76.93M
	Net Income Common Stockholders
-70.63M	-68.57M	22.81M	-48.03M	-91.30M	-77.52M
Balance Sheet		Cash, Cash Equivalents and Short-Term Investments
48.89M	52.89M	76.33M	109.11M	146.40M	126.91M
	Total Assets
77.71M	110.54M	182.39M	124.80M	171.07M	153.45M
	Total Debt
3.96M	4.30M	5.54M	6.65M	7.33M	7.84M
	Net Debt
-44.93M	-48.59M	-70.79M	-102.46M	-105.25M	-77.37M
	Total Liabilities
43.90M	64.42M	75.50M	48.87M	82.78M	21.41M
	Stockholders Equity
33.81M	46.12M	106.89M	75.93M	88.29M	132.04M
Cash Flow		Free Cash Flow
-33.38M	-23.44M	-32.99M	-7.73M	-64.31M	-86.03M
	Operating Cash Flow
-33.38M	-23.44M	-32.99M	-7.73M	-64.35M	-85.87M
	Investing Cash Flow
0.00	0.00	0.00	33.81M	7.67M	10.47M
	Financing Cash Flow
0.00	0.00	221.00K	-29.55M	84.05M	130.88M

Spero Therapeutics Technical Analysis

• Technical Analysis Sentiment: Positive
• Last Price: 2.90
• 50DMA: Positive
• 100DMA: Positive
• 200DMA: Positive
• MACD: Negative
• RSI: Negative
• STOCH: Neutral

Evaluating momentum and price trends is crucial in stock analysis to make informed investment decisions. For SPRO, the sentiment is Positive. The current price of 2.9 is above the 20-day moving average (MA) of 2.17, above the 50-day MA of 1.26, and above the 200-day MA of 1.11, indicating a bullish trend. The MACD of 0.53 indicates Negative momentum. The RSI at 78.24 is Negative, neither overbought nor oversold. The STOCH value of 67.21 is Neutral, not indicating any strong overbought or oversold conditions. Overall, these indicators collectively point to a Positive sentiment for SPRO.

Spero Therapeutics Peers Comparison

Name	Overall Rating	Market Cap	P/E Ratio	ROE	Dividend Yield	Revenue Growth	EPS Growth
Sector *	54 Neutral	$5.34B	3.36	-45.10%	3.39%	16.81%	-0.03%
SPRO	48 Neutral	$159.35M	10.83	-107.28%	―	-71.68%	-397.61%
DYAI	46 Neutral	$27.98M	―	-214.26%	―	20.58%	15.90%
SCYX	45 Neutral	$30.63M	―	-43.47%	―	-98.13%	-129.06%
ITRM	35 Underperform	$40.00M	―	607.06%	―	―	55.67%
ANTX	34 Underperform	$32.59M	―	-49.32%	―	―	38.98%
KALA	31 Underperform	$28.00M	―	-576.46%	―	―	38.50%

Spero Therapeutics Corporate Events

Spero Therapeutics Appoints New CEO Esther Rajavelu

On April 28, 2025, Spero Therapeutics announced the appointment of Esther Rajavelu as President and Chief Executive Officer, effective May 2, 2025. Rajavelu, who has been serving as Interim President and CEO since January 2025, will also continue her roles as Chief Financial Officer and Treasurer. This leadership transition follows the mutual separation of former CEO Sath Shukla, who will step down on the same effective date. The company is focused on advancing its PIVOT-PO Phase 3 trial for tebipenem HBr, with Rajavelu’s leadership expected to strengthen Spero’s strategic initiatives and partnerships, particularly with GSK.

Spark’s Take on SPRO Stock

According to Spark, TipRanks’ AI Analyst, SPRO is a Neutral.

Spero Therapeutics is currently facing financial and operational challenges, highlighted by declining revenues and increased losses. The financial performance and technical analysis suggest a cautious outlook, while the earnings call provides some optimism through strategic partnerships and potential milestone payments. However, the negative valuation metrics and recent clinical trial setbacks weigh heavily on the stock score, resulting in an overall score of 53.

To see Spark’s full report on SPRO stock, click here.