PE Ratio: 10.82

Basis: FMP quote price / unrounded diluted EPS from four consecutive issuer fiscal quarters. Source: stored company filings and market data; unavailable inputs remain N/A.

Is the P/E ratio high or low?

The P/E ratio of 10.82 is 22% above its 3-year average of 8.86, near the low end of its 3-year range (2.96–59.59).

As of 2026-10-06T21:18:20.312Z. 0.34% above its 12-month average of 10.78.

PE Ratio (10.82) = Close Price ($1.19) / Diluted TTM EPS ($0.11)

SPRO PE Ratio Metrics

P/E vs. its own history

At 10.8, P/E is near its 3-year median — higher than 49% of readings in its 3-year history.

P/E Comparison

PE Ratio Formula & Definition

PE Ratio = Share Price / Diluted EPS (TTM)

The price-to-earnings ratio measures how much investors pay for each dollar of trailing earnings. A lower PE can indicate a cheaper valuation; a higher PE implies higher growth expectations.

Expanded definitions: Investopedia, Wikipedia, Corporate Finance Institute

PE Ratio FAQ

What is the P/E ratio for Spero Therapeutics, Inc. (SPRO)?

The P/E ratio for SPRO stock is 10.82.

Is Spero Therapeutics, Inc.'s P/E ratio high or low?

The P/E ratio of 10.82 is 22% above its 3-year average of 8.86, near the low end of its 3-year range (2.96–59.59).

What is the TTM average P/E ratio for Spero Therapeutics, Inc. (SPRO)?

The TTM average P/E ratio for SPRO stock is 10.78.

What is the 3Y average P/E ratio for Spero Therapeutics, Inc. (SPRO)?

The 3Y average P/E ratio for SPRO stock is 8.86.

Showing the most recent 260 of 474 data points. The chart above shows the full history.

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