BTC 20SEP26 Options Chain

BTC options expiring 20SEP26, 4 days out, with the forward at $75,883. Open interest is $728K in calls and $1M in puts, put/call 1.47, and max pain is $76,000. At-the-money implied volatility is 37.5%. Where a strike is listed on both venues the cheaper ask and richer bid are visible side by side; the arb scanner flags any gap that exceeds fees. Strikes shown are within 60% of the forward. All BTC expiries.

Chain

Derive bid / ask (IV) · Deribit bid / ask (IV) · open interest in contracts, both venues combined.

Derive call	Deribit call	Strike	Deribit put	Derive put	Put OI
$10807 / $11058 64%	–	65000	–	– / $22.00 64%	0
–	$8660 / $9280 59%	67000	$20.00 / $40.00 59%	–	0
–	$7720 / $8200 54%	68000	$30.00 / $50.00 54%	–	0
–	$6740 / $7200 51%	69000	$45.00 / $65.00 51%	–	0
$5864 / $6128 50%	$5760 / $6220 48%	70000	$70.00 / $90.00 48%	$69.00 / $91.00 50%	0
–	$4800 / $5360 45%	71000	$110 / $135 45%	–	1
$3941 / $4244 44%	$3840 / $4420 43%	72000	$170 / $200 43%	$175 / $212 44%	1
–	$3000 / $3480 41%	73000	$285 / $320 41%	–	0
–	$2560 / $3040 40%	73500	$365 / $410 40%	–	0
$2316 / $2501 39%	$2200 / $2580 39%	74000	$480 / $520 39%	$442 / $539 39%	0
–	$1840 / $2240 39%	74500	$605 / $655 39%	–	0
$1630 / $1772 38%	$1520 / $1860 38%	75000	$765 / $820 38%	$717 / $832 38%	0
–	$1340 / $1420 38%	75500	$965 / $1040 38%	–	0
$1069 / $1183 37%	$1100 / $1160 37%	76000	$1220 / $1280 37%	$1145 / $1250 37%	0
–	$865 / $920 37%	76500	$1480 / $1560 37%	–	0
$656 / $771 37%	$680 / $730 37%	77000	$1560 / $2020 37%	$1711 / $1855 37%	0
–	$530 / $570 37%	77500	$1920 / $2340 37%	–	0
$401 / $460 38%	$405 / $440 37%	78000	$2280 / $2720 37%	$2397 / $2588 38%	0
–	$310 / $340 38%	78500	$2660 / $3180 38%	–	0
$234 / $275 39%	$240 / $270 38%	79000	$3040 / $3560 38%	$3198 / $3430 39%	0
$133 / $164 41%	$135 / $165 39%	80000	$3920 / $4500 39%	$4051 / $4334 41%	0
$76.00 / $106 43%	$80.00 / $105 41%	81000	$4940 / $5420 41%	$4961 / $5297 43%	0
$48.00 / $66.00 44%	$45.00 / $70.00 43%	82000	$5900 / $6380 43%	$5939 / $6256 44%	0
–	$30.00 / $55.00 45%	83000	$6820 / $7420 45%	–	0
$20.00 / $42.00 48%	$20.00 / $40.00 48%	84000	$7880 / $8360 48%	$7929 / $8214 48%	0
– / – 50%	–	85000	–	$8931 / $9204 50%	0
$6.00 / $26.00 51%	–	86000	–	$9945 / $10197 51%	0
– / – 55%	–	90000	–	– / – 55%	0
– / – 55%	–	95000	–	– / – 55%	0