Spero Therapeutics Inc (SPRO)
Earnings
Annual and quarterly EPS data presented alongside analyst estimates, earnings surprises, and historical growth statistics. The side-by-side view of reported versus estimated EPS — combined with surprise percentage and report timing — allows investors to assess whether a company consistently beats, meets, or misses market expectations, and how that track record has evolved across full economic cycles.
Earnings annual
Fiscal date endingReported EPS
Dec 31, 2018
-$42.12
Dec 31, 2019
-$3.34
Dec 31, 2020
-$3.58
Dec 31, 2021
-$2.89
Dec 31, 2022
-$1.22
Dec 31, 2023
$0.52
Dec 31, 2024
-$1.26
Dec 31, 2025
$0.12
Mar 31, 2026
-$0.13
Jun 30, 2026
-$0.29
Sep 30, 2026
-$0.29
Calculation
Growth rate
39.31%
Average
-$4.95
Maximum
Dec 31, 2023
$0.52
Minimum
Dec 31, 2018
-$42.12
Median
Dec 31, 2022
-$1.22
Earnings quarterly
| Fiscal date ending | Mar 31, 2017 |
| Reported date | Jun 29, 2017 |
| Report time | Pre market |
| Reported EPS | -$0.51 |
| Estimated EPS | $0 |
| Surprise | -$0.51 |
| Surprise (%) | -% |
| Fiscal date ending | Jun 30, 2017 |
| Reported date | Aug 30, 2017 |
| Report time | Pre market |
| Reported EPS | -$2.96 |
| Estimated EPS | $0 |
| Surprise | -$2.96 |
| Surprise (%) | -% |
| Fiscal date ending | Sep 30, 2017 |
| Reported date | Dec 14, 2017 |
| Report time | Post market |
| Reported EPS | -$36.02 |
| Estimated EPS | -$35.07 |
| Surprise | -$0.95 |
| Surprise (%) | -2.71% |
| Fiscal date ending | Mar 31, 2018 |
| Reported date | Apr 2, 2018 |
| Report time | Post market |
| Reported EPS | -$0.74 |
| Estimated EPS | -$1.20 |
| Surprise | $0.46 |
| Surprise (%) | 38.33% |
| Fiscal date ending | Jun 30, 2018 |
| Reported date | Aug 9, 2018 |
| Report time | Post market |
| Reported EPS | -$0.69 |
| Estimated EPS | -$0.77 |
| Surprise | $0.08 |
| Surprise (%) | 10.39% |
| Fiscal date ending | Sep 30, 2018 |
| Reported date | Nov 8, 2018 |
| Report time | Post market |
| Reported EPS | -$0.60 |
| Estimated EPS | -$0.63 |
| Surprise | $0.03 |
| Surprise (%) | 4.76% |
| Fiscal date ending | Dec 31, 2018 |
| Reported date | Mar 14, 2019 |
| Report time | Post market |
| Reported EPS | -$0.60 |
| Estimated EPS | -$0.75 |
| Surprise | $0.15 |
| Surprise (%) | 20% |
| Fiscal date ending | Mar 31, 2019 |
| Reported date | May 9, 2019 |
| Report time | Post market |
| Reported EPS | -$0.29 |
| Estimated EPS | -$0.77 |
| Surprise | $0.48 |
| Surprise (%) | 62.34% |
| Fiscal date ending | Jun 30, 2019 |
| Reported date | Aug 8, 2019 |
| Report time | Post market |
| Reported EPS | -$0.74 |
| Estimated EPS | -$0.86 |
| Surprise | $0.12 |
| Surprise (%) | 13.95% |
| Fiscal date ending | Sep 30, 2019 |
| Reported date | Nov 4, 2019 |
| Report time | Post market |
| Reported EPS | -$0.95 |
| Estimated EPS | -$0.85 |
| Surprise | -$0.10 |
| Surprise (%) | -11.76% |
| Fiscal date ending | Dec 31, 2019 |
| Reported date | Mar 16, 2020 |
| Report time | Pre market |
| Reported EPS | -$1.36 |
| Estimated EPS | -$1.08 |
| Surprise | -$0.28 |
| Surprise (%) | -25.93% |
| Fiscal date ending | Mar 31, 2020 |
| Reported date | May 8, 2020 |
| Report time | Pre market |
| Reported EPS | -$1.19 |
| Estimated EPS | -$1.25 |
| Surprise | $0.06 |
| Surprise (%) | 4.80% |
| Fiscal date ending | Jun 30, 2020 |
| Reported date | Aug 6, 2020 |
| Report time | Post market |
| Reported EPS | -$0.85 |
| Estimated EPS | -$1.13 |
| Surprise | $0.28 |
| Surprise (%) | 24.78% |
| Fiscal date ending | Sep 30, 2020 |
| Reported date | Nov 5, 2020 |
| Report time | Post market |
| Reported EPS | -$0.86 |
| Estimated EPS | -$0.89 |
| Surprise | $0.03 |
| Surprise (%) | 3.37% |
| Fiscal date ending | Dec 31, 2020 |
| Reported date | Mar 11, 2021 |
| Report time | Post market |
| Reported EPS | -$0.68 |
| Estimated EPS | -$0.74 |
| Surprise | $0.06 |
| Surprise (%) | 8.11% |
| Fiscal date ending | Mar 31, 2021 |
| Reported date | May 6, 2021 |
| Report time | Post market |
| Reported EPS | -$0.66 |
| Estimated EPS | -$0.63 |
| Surprise | -$0.03 |
| Surprise (%) | -4.76% |
| Fiscal date ending | Jun 30, 2021 |
| Reported date | Aug 5, 2021 |
| Report time | Post market |
| Reported EPS | -$0.63 |
| Estimated EPS | -$0.75 |
| Surprise | $0.12 |
| Surprise (%) | 16% |
| Fiscal date ending | Sep 30, 2021 |
| Reported date | Nov 10, 2021 |
| Report time | Post market |
| Reported EPS | -$0.70 |
| Estimated EPS | -$0.66 |
| Surprise | -$0.04 |
| Surprise (%) | -6.06% |
| Fiscal date ending | Dec 31, 2021 |
| Reported date | Mar 31, 2022 |
| Report time | Post market |
| Reported EPS | -$0.90 |
| Estimated EPS | -$0.75 |
| Surprise | -$0.15 |
| Surprise (%) | -20% |
| Fiscal date ending | Mar 31, 2022 |
| Reported date | May 16, 2022 |
| Report time | Post market |
| Reported EPS | -$1.01 |
| Estimated EPS | -$0.95 |
| Surprise | -$0.06 |
| Surprise (%) | -6.32% |
| Fiscal date ending | Jun 30, 2022 |
| Reported date | Aug 10, 2022 |
| Report time | Post market |
| Reported EPS | -$0.43 |
| Estimated EPS | -$0.93 |
| Surprise | $0.50 |
| Surprise (%) | 53.76% |
| Fiscal date ending | Sep 30, 2022 |
| Reported date | Nov 14, 2022 |
| Report time | Post market |
| Reported EPS | -$0.33 |
| Estimated EPS | -$0.24 |
| Surprise | -$0.09 |
| Surprise (%) | -37.50% |
| Fiscal date ending | Dec 31, 2022 |
| Reported date | Mar 30, 2023 |
| Report time | Post market |
| Reported EPS | $0.55 |
| Estimated EPS | $0.04 |
| Surprise | $0.51 |
| Surprise (%) | 1,275% |
| Fiscal date ending | Mar 31, 2023 |
| Reported date | May 11, 2023 |
| Report time | Post market |
| Reported EPS | -$0.25 |
| Estimated EPS | -$0.26 |
| Surprise | $0.01 |
| Surprise (%) | 3.85% |
| Fiscal date ending | Jun 30, 2023 |
| Reported date | Aug 10, 2023 |
| Report time | Post market |
| Reported EPS | -$0.23 |
| Estimated EPS | -$0.37 |
| Surprise | $0.14 |
| Surprise (%) | 37.84% |
| Fiscal date ending | Sep 30, 2023 |
| Reported date | Nov 13, 2023 |
| Report time | Post market |
| Reported EPS | $0.04 |
| Estimated EPS | -$0.03 |
| Surprise | $0.07 |
| Surprise (%) | 233.33% |
| Fiscal date ending | Dec 31, 2023 |
| Reported date | Mar 13, 2024 |
| Report time | Post market |
| Reported EPS | $0.96 |
| Estimated EPS | -$0.10 |
| Surprise | $1.06 |
| Surprise (%) | 1,060% |
| Fiscal date ending | Mar 31, 2024 |
| Reported date | May 15, 2024 |
| Report time | Post market |
| Reported EPS | -$0.24 |
| Estimated EPS | -$0.06 |
| Surprise | -$0.18 |
| Surprise (%) | -300% |
| Fiscal date ending | Jun 30, 2024 |
| Reported date | Aug 5, 2024 |
| Report time | Post market |
| Reported EPS | -$0.33 |
| Estimated EPS | -$0.38 |
| Surprise | $0.05 |
| Surprise (%) | 13.16% |
| Fiscal date ending | Sep 30, 2024 |
| Reported date | Nov 14, 2024 |
| Report time | Post market |
| Reported EPS | -$0.32 |
| Estimated EPS | -$0.36 |
| Surprise | $0.04 |
| Surprise (%) | 11.11% |
| Fiscal date ending | Dec 31, 2024 |
| Reported date | Mar 27, 2025 |
| Report time | Pre market |
| Reported EPS | -$0.37 |
| Estimated EPS | -$0.31 |
| Surprise | -$0.06 |
| Surprise (%) | -18.35% |
| Fiscal date ending | Mar 31, 2025 |
| Reported date | May 13, 2025 |
| Report time | Post market |
| Reported EPS | -$0.25 |
| Estimated EPS | -$0.44 |
| Surprise | $0.19 |
| Surprise (%) | 43.18% |
| Fiscal date ending | Jun 30, 2025 |
| Reported date | Aug 12, 2025 |
| Report time | Post market |
| Reported EPS | -$0.03 |
| Estimated EPS | -$0.38 |
| Surprise | $0.35 |
| Surprise (%) | 92.11% |
| Fiscal date ending | Sep 30, 2025 |
| Reported date | Nov 13, 2025 |
| Report time | Post market |
| Reported EPS | -$0.13 |
| Estimated EPS | -$0.25 |
| Surprise | $0.12 |
| Surprise (%) | 48% |
| Fiscal date ending | Dec 31, 2025 |
| Reported date | Mar 26, 2026 |
| Report time | Pre market |
| Reported EPS | $0.53 |
| Estimated EPS | - |
| Surprise | - |
| Surprise (%) | -% |
| Fiscal date ending | Mar 31, 2026 |
| Reported date | May 13, 2026 |
| Report time | Pre market |
| Reported EPS | -$0.13 |
| Estimated EPS | - |
| Surprise | - |
| Surprise (%) | -% |
| Fiscal date ending | Jun 30, 2026 |
| Reported date | Aug 12, 2026 |
| Report time | Post market |
| Reported EPS | -$0.16 |
| Estimated EPS | -$0.19 |
| Surprise | $0.03 |
| Surprise (%) | 15.79% |
Calculation
Growth rate
3.17%
Average
-$1.46
Maximum
Dec 31, 2023
$0.96
Minimum
Sep 30, 2017
-$36.02
Median
Mar 31, 2017
-$0.51