Spero Therapeutics, Inc.

SPRO Healthcare Biotechnology

Spero Therapeutics, Inc.’s revenue for fiscal 2025 (year ended December 2025) was $66.8 million, up 39.2% from fiscal 2024. In the quarter to June 2026, revenue fell 95.6%, EPS fell 433.3% and free cash flow grew 69.7%, each against the same quarter a year earlier. Dividend growth for five consecutive years.

1.10 0.03 −2.65%
Market cap
$65.8M
P/E
7.9×
Fwd P/E
4.2×
Dividend yield
—
F-score
5/9
Altman Z
1.04
Beneish M
−1.00
Dividend safety
n/a
Dec '25 Dec '24 Dec '23 Dec '22 Dec '21 Dec '20 Dec '19 Dec '18 Dec '17 Dec '16
P/E ratio
15.53 0.00 3.53 0.00 0.00 0.00 0.00 0.00 0.00 0.00
Piotroski F-Score
5 2 4 4 4 2 3 3 — —
P/S ratio
1.95 1.16 0.77 1.22 27.09 46.52 9.63 24.81 15.87 0.00
Altman Z-Score
1.04 (6.43) (0.81) (3.65) (0.04) 8.97 (0.33) 2.96 0.31 —
Altman Z″-Score (non-manufacturers)
(8.90) (13.81) (1.33) (6.62) (4.00) 2.45 (3.40) 9.21 9.98 (23.71)
P/FCF ratio
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
P/Operating CF
(15.63) (2.38) (4.58) 1.47 (18.09) (26.49) (10.06) (7.28) (2.47) (0.37)
Beneish M-Score
(1.00) (4.29) 21.97 (3.03) (3.17) (2.40) 1.95 (0.47) 2.44 —
P/B ratio
2.21 1.21 0.75 0.86 5.60 3.29 2.34 0.85 0.37 0.00
EV/Sales
1.35 0.06 0.04 (0.82) 19.08 32.92 5.11 (4.29) (28.24) 0.00
EV/EBITDA
14.30 0.00 0.17 1.06 0.00 0.00 0.00 0.40 1.35 0.61
EV/FCF
(7.13) (0.12) (0.11) 5.63 (5.41) (3.57) (1.84) 0.40 1.39 0.61
Current Ratio
7.59 2.19 3.53 5.25 8.46 9.70 3.58 10.08 11.29 1.72
Net Debt/EBITDA
(6.38) 0.72 (3.49) 2.64 1.68 1.62 1.31 2.72 2.11 0.31
Debt/Equity
0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00
ROE
16.31% (89.62%) 24.95% (56.53%) (81.48%) (76.31%) (63.99%) (41.49%) (258.18%) (169.30%)
ROA
9.55% (46.81%) 14.85% (31.37%) (55.32%) (60.74%) (51.83%) (37.45%) (85.96%) (434.62%)
ROIC
21.04% 0.00% 43.93% 0.00% 0.00% (963.10%) 0.00% (6,493.63%) 0.00% 0.00%
Return on Tangible Assets
14.67% (117.81%) 24.25% (50.29%) (64.01%) (62.33%) (85.78%) (36.29%) (54.19%) (463.71%)
Average Days of Receivables
138.71 399.23 178.30 7.39 52.80 241.61 171.89 119.46 542.80 331.22
Earnings Yield
6.44% (123.30%) 28.29% (95.40%) (18.05%) (18.62%) (34.30%) (42.76%) (710.00%) (951.57%)
Free Cash Flow Yield
(9.70%) (42.19%) (41.24%) (11.88%) (13.02%) (19.82%) (28.81%) (43.03%) (128.00%) (922.37%)
Free Cash Flow per Share
(0.23) (0.43) (0.63) (0.21) (2.08) (3.84) (2.77) (2.63) (15.13) (95.42)
Book value per Share
1.05 0.85 2.03 2.02 2.86 5.90 4.11 7.24 32.84 20.37
Free Cash Flow
(12.62) (23.44) (32.99) (7.73) (64.31) (86.03) (50.33) (42.06) (39.14) (29.79)
EV/EBIT
14.30 0.00 0.18 1.04 0.00 0.00 0.00 0.40 1.34 0.60
Other line items

Show all line items

Columns are period end dates