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Builders FirstSource BLDR 69.5 5.89 9.26%

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ATM IV
0.541
Put Call Ratio (OI)
0.466
Put Call Ratio (Vol)
0.66
IV Rank
22.2
IV Percentile
36.3
Max pain
55

Gamma exposure (2026-11-04)

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}
16.0
807.0
| Δ | |\Delta|
0.00
1.00
Moneyness Moneyness
-220.4
220.4
View values by strike
BLDR · Gamma exposure · 2026-11-04. USD of exposure per 1% underlying move.
StrikeCallsPuts
27.50 104 -49.6
30.00 2.03 K -916
32.50 0 -605
35.00 324 -6.82 K
37.50 0 -625
40.00 2.62 K -15.5 K
42.50 0 -10.8 K
45.00 1.24 K -23.4 K
47.50 122 -1.59 K
50.00 8.62 K -88.3 K
52.50 343 -4.83 K
55.00 24.8 K -82.8 K
57.50 36.3 K -5.74 K
60.00 220 K -111 K
62.50 13.7 K -30.5 K
65.00 669 K -115 K
67.50 3.9 K -6.37 K
70.00 336 K -198 K
75.00 454 K -113 K
80.00 199 K -60.8 K
85.00 69.7 K -62.7 K
90.00 166 K -22.7 K
95.00 75.8 K -1.93 K
100.00 69.8 K -13.3 K
105.00 46.1 K -985
110.00 27 K -38 K
115.00 13.3 K -1 K
120.00 16 K -214
125.00 13.8 K -50.8
130.00 15.7 K 0
135.00 4.37 K 0
140.00 2.66 K 0
145.00 1.92 K 0
150.00 9.39 K 0
155.00 875 0
160.00 6.02 K 0
165.00 951 0
170.00 3.61 K 0
175.00 1.87 K 0
180.00 20.4 K 0
185.00 6.58 K 0
190.00 736 0
195.00 42.3 K 0
200.00 510 0
210.00 528 0
220.00 216 0
230.00 24.7 0
240.00 73.6 0
250.00 109 0
260.00 116 0
270.00 28.1 0
280.00 28.6 0
290.00 498 0