Spero Therapeutics, Inc. (SPRO) Gamma Exposure

Net dealer gamma exposure in Spero Therapeutics, Inc. (SPRO) options is -$50.52 — dealers are net short gamma. Gamma exposure (GEX) estimates how much market makers must re-hedge as SPRO moves. This page maps that exposure strike by strike, marks the gamma flip level, and explains what the hedging pressure means for price behavior in plain English.

Data as of Aug 24, 2026, 3:55 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.

Last close
$1.21
52-week range
$1.11 – $2.99
ATM IV (30d)
217.6%
IV rank
36 / 100
Low
Expected move
±$0.69 (±56.9%)
Put/call OI
204.56
Put-heavy
Max pain
$2.5
↑ 105.8% above close
Next earnings
Nov 12, 2026

SPRO Gamma Exposure by Strike

Net gamma exposure (GEX)-$50.52
Net delta exposure-86.24
Total call open interest9
Total put open interest1,841

Net dealer gamma exposure is -$50.52. When dealers are short gamma they buy into rallies and sell into declines to stay hedged, which can amplify price swings. The single largest gamma concentration sits at the $1 strike, which often acts as a magnet or barrier while dealers hedge around it.

SPRO Net GEX History

-$377K$754K$2M$3M$4MFeb '26May '26Aug '26

SPRO net dealer gamma exposure, past year.

Net dealer gamma exposure has fallen from $6.3K in Feb '26 to -$50.5 today.

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SPRO Options FAQ

What is SPRO's gamma exposure (GEX) today?

SPRO's net dealer gamma exposure is -$50.52 as of Aug 24, 2026. Negative GEX means dealer hedging trades with the market — buying rallies and selling declines — which can amplify swings.

How is SPRO gamma exposure calculated?

OptiView multiplies each open SPRO contract's gamma by its open interest, contract size, and the square of the share price, counting calls as positive and puts as negative dealer exposure. Summing across all strikes and expirations gives net GEX; the per-strike breakdown is shown in the chart above.

Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.

Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.