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Janus Henderson Mortgage-Backed Securities ETF JMBS 43.56 0.17 0.39%

JMBS Gamma Exposure (GEX)

JMBS (Janus Henderson Mortgage-Backed Securities ETF): See how call and put gamma exposure is distributed across option strikes. Free delayed preview.

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ATM IV
0.431
Put Call Ratio (OI)
0.375
Put Call Ratio (Vol)
1
IV Rank
22.9
IV Percentile
85.9
Max Pain
44

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
207.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-11.4
11.4
View values by strike
JMBS · Gamma exposure · 2026-09-21. USD of exposure per 1% underlying move.
StrikeCallsPuts
44.00 0 -936
46.00 846 0