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Grayscale Bitcoin Trust ETF GBTC 66.91 4.09 6.52%

GBTC Gamma Exposure (GEX)

GBTC (Grayscale Bitcoin Trust ETF): See how call and put gamma exposure is distributed across option strikes. Free delayed preview.

Previous-day view · Mon Sep 21 close. You are previewing the previous trading day. Subscribe to see today live and every other date — plans start at Delta, $39/mo. Sign up Sign in
ATM IV
0.396
Put Call Ratio (OI)
0.253
Put Call Ratio (Vol)
0.519
IV Rank
20.9
IV Percentile
31.4
Max Pain
55

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}
4.0
851.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-73.1
73.1
View values by strike
GBTC · Gamma exposure · 2026-09-21. USD of exposure per 1% underlying move.
StrikeCallsPuts
25.00 2.18 K -5.2 K
30.00 6.64 K -3.45 K
35.00 1.9 K -10.7 K
40.00 8.78 K -9.38 K
41.00 32.1 0
43.00 0 -230
44.00 113 0
45.00 13.4 K -9.79 K
46.00 0 -1.05 K
47.00 31.5 -861
47.50 0 -33.9
48.00 55.2 -3.2 K
48.50 0 -230
49.00 105 -1.37 K
49.50 0 -267
50.00 42.1 K -54.4 K
50.50 0 -728
51.00 1.5 K -1.4 K
51.50 0 -251
52.00 2.63 K -2.84 K
52.50 0 -999
53.00 1.54 K -507
53.50 0 -238
54.00 1.7 K -1 K
54.50 0 -363
55.00 81.8 K -45.3 K
55.50 0 -1.49 K
56.00 9.31 K -11 K
56.50 0 -2.16 K
57.00 4.06 K -6.67 K
57.50 -2.13e-6 -93.1
58.00 1.96 K -21.8 K
59.00 6.81 K -25.7 K
59.50 0 -503
60.00 203 K -67.9 K
60.50 495 -145
61.00 50.6 K -6.98 K
61.50 2.97 K -577
62.00 76 K -30 K
62.50 3.47 K -1.54 K
63.00 250 K -662
63.50 7.47 K -301
64.00 37.4 K -196
65.00 294 K -59.3 K
66.00 102 K -10.2 K
66.50 3.65 K 0
67.00 14.2 K 0
68.00 3.62 K 0
69.00 6.24 K -13.1 K
70.00 255 K -51.3 K
71.00 810 0
75.00 266 K -2.12 K
78.00 4.57 K -1.17 K
79.00 638 0
80.00 136 K -2.61 K
81.00 426 -59.5
82.00 533 -59.5
83.00 160 -59.7
84.00 106 -60.2
85.00 89.5 K -486
86.00 2.8 K -59.9
87.00 577 -59.7
88.00 472 0
89.00 888 -60.1
90.00 56.2 K -1.5 K
91.00 154 0
92.00 1.33 K 0
93.00 4.68 K 0
94.00 101 0
95.00 28 K 0
96.00 1.47 K 0
97.00 2.12 K 0
98.00 586 0
99.00 820 0
100.00 29.6 K -479
101.00 475 0
102.00 3.67 K 0
105.00 15.3 K 0
110.00 5.51 K 0
115.00 17.5 K 0
120.00 11.7 K 0
125.00 7.28 K 0
130.00 4.07 K 0
135.00 1.7 K 0
140.00 13.1 K 0