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TransMedics Group TMDX 87.0 4.82 5.87%

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ATM IV
0.538
Put Call Ratio (OI)
0.68
Put Call Ratio (Vol)
0.302
IV Rank
16.3
IV Percentile
16.4
Max Pain
85

Gamma exposure (2026-09-14)

GEX estimates dealer hedging flow at each strike.

Positive GEX = dealers are long gamma; they buy the dip and sell the rip, dampening volatility. Negative GEX = dealers are short gamma; they sell the dip and buy the rip, amplifying volatility.

DTE \text{DTE}
4.0
858.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-174.0
174.0