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Principal Exchange-Traded Funds Principal U USMC 77.55 1.38 1.81%

USMC Gamma Exposure (GEX)

USMC (Principal Exchange-Traded Funds Principal U): See how call and put gamma exposure is distributed across option strikes. Free delayed preview.

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ATM IV
0.126
Put Call Ratio (OI)
Put Call Ratio (Vol)
IV Rank
7.06
IV Percentile
7.27
Max Pain
78

Gamma exposure (2026-09-21)

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}
25.0
179.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-17.6
17.6
View values by strike
USMC · Gamma exposure · 2026-09-21. USD of exposure per 1% underlying move.
StrikeCallsPuts
78.00 0 -971