Spero Therapeutics Inc. (SPRO)
NASDAQ: SPRO
· Real-Time Price · USD
2.15
0.01 (0.47%)
At close: Sep 05, 2025, 3:59 PM
2.15
0.00%
After-hours: Sep 05, 2025, 05:13 PM EDT
SPRO Option Overview
Overview for all option chains of SPRO. As of September 06, 2025, SPRO options have an IV of 477.76% and an IV rank of 94.44%. The volume is 26 contracts, which is 16.46% of average daily volume of 158 contracts. The volume put-call ratio is 0.13, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
477.76%IV Rank
94.44%Historical Volatility
78.46%IV Low
100.14% on Jul 11, 2025IV High
500% on Feb 20, 2025Open Interest (OI)
Today's Open Interest
12,022Put-Call Ratio
0.47Put Open Interest
3,857Call Open Interest
8,165Open Interest Avg (30-day)
11,367Today vs Open Interest Avg (30-day)
105.76%Option Volume
Today's Volume
26Put-Call Ratio
0.13Put Volume
3Call Volume
23Volume Avg (30-day)
158Today vs Volume Avg (30-day)
16.46%Option Chain Statistics
This table provides a comprehensive overview of all SPRO options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Sep 19, 2025 | 0 | 0 | 0 | 1,385 | 42 | 0.03 | 477.76% | 2.5 |
| Oct 17, 2025 | 7 | 3 | 0.43 | 3,744 | 3,101 | 0.83 | 255.47% | 2.5 |
| Jan 16, 2026 | 16 | 0 | 0 | 2,897 | 614 | 0.21 | 174.75% | 2.5 |
| Apr 17, 2026 | 0 | 0 | 0 | 139 | 100 | 0.72 | 177.18% | 2.5 |