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
-1.2569
Dec 31, 2025
0.1209
Mar 31, 2026
-0.1257
Jun 30, 2026
-0.2857
Calculation
Growth rate
42.58%
Average
-5.418
Maximum
Dec 31, 2023
0.52
Minimum
Dec 31, 2018
-42.12
Median
Dec 31, 2024
-1.2569
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 (%) | -2.7089% |
| Fiscal date ending | Mar 31, 2018 |
| Reported date | Apr 2, 2018 |
| Report time | POST_MARKET |
| Reported EPS | -0.74 |
| Estimated EPS | -1.2 |
| Surprise | 0.46 |
| Surprise (%) | 38.3333% |
| 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 (%) | 10.3896% |
| Fiscal date ending | Sep 30, 2018 |
| Reported date | Nov 8, 2018 |
| Report time | POST_MARKET |
| Reported EPS | -0.6 |
| Estimated EPS | -0.63 |
| Surprise | 0.03 |
| Surprise (%) | 4.7619% |
| Fiscal date ending | Dec 31, 2018 |
| Reported date | Mar 14, 2019 |
| Report time | POST_MARKET |
| Reported EPS | -0.6 |
| 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 (%) | 62.3377% |
| 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 (%) | 13.9535% |
| Fiscal date ending | Sep 30, 2019 |
| Reported date | Nov 4, 2019 |
| Report time | POST_MARKET |
| Reported EPS | -0.95 |
| Estimated EPS | -0.85 |
| Surprise | -0.1 |
| Surprise (%) | -11.7647% |
| 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 (%) | -25.9259% |
| 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 (%) | 4.8% |
| 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 (%) | 24.7788% |
| 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 (%) | 3.3708% |
| 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 (%) | 8.1081% |
| 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 (%) | -4.7619% |
| 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 | -0.7 |
| Estimated EPS | -0.66 |
| Surprise | -0.04 |
| Surprise (%) | -6.0606% |
| Fiscal date ending | Dec 31, 2021 |
| Reported date | Mar 31, 2022 |
| Report time | POST_MARKET |
| Reported EPS | -0.9 |
| 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 (%) | -6.3158% |
| Fiscal date ending | Jun 30, 2022 |
| Reported date | Aug 10, 2022 |
| Report time | POST_MARKET |
| Reported EPS | -0.43 |
| Estimated EPS | -0.93 |
| Surprise | 0.5 |
| Surprise (%) | 53.7634% |
| 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 (%) | -37.5% |
| 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 (%) | 1275% |
| 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 (%) | 3.8462% |
| 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 (%) | 37.8378% |
| 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 (%) | 233.3333% |
| Fiscal date ending | Dec 31, 2023 |
| Reported date | Mar 13, 2024 |
| Report time | POST_MARKET |
| Reported EPS | 0.96 |
| Estimated EPS | -0.1 |
| Surprise | 1.06 |
| Surprise (%) | 1060% |
| 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 (%) | 13.1579% |
| 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 (%) | 11.1111% |
| Fiscal date ending | Dec 31, 2024 |
| Reported date | Mar 27, 2025 |
| Report time | PRE_MARKET |
| Reported EPS | -0.3669 |
| Estimated EPS | -0.31 |
| Surprise | -0.0569 |
| Surprise (%) | -18.3548% |
| 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 (%) | 43.1818% |
| 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 (%) | 92.1053% |
| 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 | 0.5309 |
| Estimated EPS | |
| Surprise | 0 |
| Surprise (%) | % |
| Fiscal date ending | Mar 31, 2026 |
| Reported date | May 13, 2026 |
| Report time | PRE_MARKET |
| Reported EPS | -0.1257 |
| Estimated EPS | |
| Surprise | 0 |
| 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 (%) | 15.7895% |
Calculation
Growth rate
3.17%
Average
-1.461
Maximum
Dec 31, 2023
0.96
Minimum
Sep 30, 2017
-36.02
Median
Mar 31, 2017
-0.51