Spero Therapeutics Inc. (SPRO)
NASDAQ: SPRO
· Real-Time Price · USD
2.05
0.02 (0.99%)
At close: Oct 03, 2025, 3:59 PM
2.05
0.00%
After-hours: Oct 03, 2025, 04:10 PM EDT
SPRO Option Overview
Overview for all option chains of SPRO. As of October 05, 2025, SPRO options have an IV of 319.47% and an IV rank of 54.85%. The volume is 46 contracts, which is 17.49% of average daily volume of 263 contracts. The volume put-call ratio is 0, indicating a bullish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
319.47%IV Rank
54.85%Historical Volatility
42.73%IV Low
100.14% on Jul 11, 2025IV High
500% on Feb 20, 2025Open Interest (OI)
Today's Open Interest
9,815Put-Call Ratio
0.25Put Open Interest
1,939Call Open Interest
7,876Open Interest Avg (30-day)
9,796Today vs Open Interest Avg (30-day)
100.19%Option Volume
Today's Volume
46Put-Call Ratio
0Put Volume
0Call Volume
46Volume Avg (30-day)
263Today vs Volume Avg (30-day)
17.49%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 |
| Oct 17, 2025 | 15 | 0 | 0 | 4,012 | 1,277 | 0.32 | 319.47% | 2.5 |
| Nov 21, 2025 | 0 | 0 | 0 | 13 | 0 | 0 | 238.71% | 0.5 |
| Jan 16, 2026 | 0 | 0 | 0 | 3,172 | 552 | 0.17 | 132.41% | 2.5 |
| Apr 17, 2026 | 31 | 0 | 0 | 679 | 110 | 0.16 | 127.06% | 2 |