Spero Therapeutics (SPRO) Price to Book (2017 - 2026)

Spero Therapeutics (SPRO) has reported Price to Book for 10 consecutive years, with 2.91 the latest figure, recorded in Q2 2026.

• For the quarter ending Q2 2026, Price to Book fell 41.43% year-over-year to 2.91; the trailing twelve-month figure through Jun 2026 stood at 2.91 (down 41.43% YoY), and the FY2025 full-year result was 2.23, up 82.68% from the prior year.
• Price to Book climbed to 2.91 in Q2 2026 per SPRO's latest filing, from 2.56 in the prior quarter.
• Across five years, Price to Book topped out at 4.96 in Q2 2025 and bottomed at 0.72 in Q2 2022.
• Historically, Price to Book has averaged 1.96 across 5 years, with a median of 1.21 in 2023.
• The sharpest annual moves came in 2022 and 2025: Price to Book plunged 85.42% in 2022, then jumped 469.08% in 2025.
• Over 5 years, Price to Book stood at 0.86 in 2022, then dropped by 14.88% to 0.73 in 2023, then soared by 67.27% to 1.22 in 2024, then soared by 82.68% to 2.23 in 2025, then soared by 30.53% to 2.91 in 2026.
• According to Business Quant data, Price to Book over the past three periods registered 2.91, 2.56, and 2.23 for Q2 2026, Q1 2026, and Q4 2025 respectively.