🧮 SPRO P/E Ratio Calculation
What is the P/E Ratio?
The Price-to-Earnings (P/E) Ratio is one of the most widely used valuation metrics. It tells you how much investors are willing to pay for each dollar of a company's earnings. Zyberno calculates P/E using trailing twelve month (TTM) diluted earnings from official SEC filings.
How to Interpret the P/E Ratio
Low P/E (Under 15x)
May indicate undervaluation, or the market expects declining earnings. Common in mature, slow-growth industries.
Average P/E (15-20x)
Roughly in line with historical S&P 500 average. Suggests fairly valued with moderate growth expectations.
High P/E (20-35x)
Investors expect above-average earnings growth. Common for technology companies and market leaders.
Very High P/E (35x+)
Extreme growth expectations priced in. Significant valuation risk if growth slows.
PEG Ratio: P/E Adjusted for Growth
The PEG Ratio addresses a key limitation of P/E by factoring in earnings growth. A PEG of 1.0 suggests fair value; below 1.0 may indicate undervaluation, while above 2.0 suggests a premium price for growth.
P/E Ratio Limitations
The P/E ratio doesn't work for companies with negative earnings. It can be manipulated by one-time charges or gains, and it doesn't account for debt levels or growth rates. Use P/E alongside PEG ratio, EV/EBITDA, and Owner Earnings yield for a complete picture.
Comparing Valuation Metrics
EPS: $0.14 →
The denominator in the P/E calculation. Represents profit allocated to each outstanding share.
Price-to-Book: N/A
Compares stock price to book value. Useful for asset-heavy industries like banking and manufacturing.
EV/EBITDA: N/A
Accounts for debt and is useful for comparing companies with different capital structures.
Owner Earnings Yield →
Warren Buffett's preferred metric. Shows cash return to owners as a percentage of market cap.
📊 Full SPRO Stock Report →
Intrinsic value, margin of safety, DCF valuation, and 250+ metrics.
📈 SPRO Earnings Per Share →
Deep dive into EPS trends, quarterly history, and earnings growth analysis.
🏆 SPRO ROIC →
Measure capital efficiency — how well management deploys every dollar invested.
💎 SPRO Intrinsic Value →
Calculate what SPRO is truly worth using DCF and Owner Earnings models.
💵 SPRO Owner Earnings →
Warren Buffett's preferred measure of true earning power and cash generation.
🛡️ SPRO Margin of Safety →
See if SPRO is trading below its intrinsic value.
Summary: SPRO P/E Ratio
SPERO THERAPEUTICS, INC. (SPRO) trades at a P/E of 8.71x, which Zyberno classifies as a low multiple for a Healthcare company — below the 18x level Zyberno considers moderate for healthcare companies where pipeline value and patent protection justify premium multiples. Earnings yield: 11.48%. May indicate a value opportunity or reflect market concerns about future earnings.
Based on 0 quarters of SEC filings, SPRO's EPS is currently $0.14 on a trailing twelve-month basis. Zyberno cross-references the P/E ratio with business quality — a high multiple on a high-quality business (strong ROE, ROIC, and FCF) carries less risk than the same multiple on a weaker business. For complete financial analysis, view the full SPRO stock report on Zyberno.
Frequently Asked Questions
What is SPRO's current P/E Ratio?
SPERO THERAPEUTICS, INC.'s trailing twelve month (TTM) P/E Ratio is 8.71x, within the context of Healthcare sector multiples where Zyberno considers 18–28x moderate. Investors are paying $8.71 for every $1 of annual earnings.
Is SPRO's P/E Ratio high or low?
SPERO THERAPEUTICS, INC. (SPRO) trades at a P/E of 8.71x, which Zyberno classifies as a low multiple for a Healthcare company — below the 18x level Zyberno considers moderate for healthcare companies where pipeline value and patent protection justify premium multiples. Earnings yield: 11.48%. May indicate a value opportunity or reflect market concerns about future earnings.
What is SPRO's earnings yield?
SPRO's earnings yield is 11.48%, which is the inverse of the P/E ratio (1 ÷ P/E). This represents the theoretical return if all earnings were distributed to shareholders.
How is P/E Ratio calculated?
P/E Ratio = Stock Price ÷ EPS. For SPRO: $1.22 ÷ $0.14 = 8.71x.
What is SPRO's PEG Ratio?
SPRO's PEG Ratio is -999.00. Negative growth - PEG not meaningful. PEG below 1.0 is often considered undervalued, while above 2.0 may indicate overvaluation relative to growth.
📊 Full SPRO Stock Report →
See SPRO's intrinsic value, margin of safety, DCF valuation, and complete financial analysis with 250+ metrics.
🏆 SPRO ROIC →
Compare to Return on Invested Capital — the most comprehensive measure of capital efficiency.
📈 SPRO ROE →
Compare to Return on Equity and understand the impact of leverage on returns.
🎯 SPRO Earnings Surprise (SUE) →
See whether SPRO is beating or missing its own earnings trend — Standardized Unexpected Earnings and post-earnings drift.
👤 SPRO Owner Earnings →
Warren Buffett's preferred measure of true economic earnings available to owners.
💰 SPRO Net Income →
See the bottom-line profit that drives return calculations.
📊 SPRO EPS →
Earnings per share — net income on a per-share basis.