Option strategy benchmarks for Spero Therapeutics (SPRO): current values for 30, 60, 90 and 120-day maturities compared with the past year.
For the latest figures, see SPRO options overview.
As of 11-Nov-2026, 4:00 PM ET
Summary·Risk Reversal·Straddle·Strangle·Debit Call Spread·Debit Put Spread·Ratio Call Spread·Ratio Put Spread·Double Bull Spread·Double Bear Spread·Calendar Call·Diagonal Call·Diagonal Put·Long Call·Long Put·Iron Butterfly·Iron Condor
