BTC 13SEP26 Options Chain

BTC options expiring 13SEP26, 3 days out, with the forward at $78,055. Open interest is $27M in calls and $36M in puts, put/call 1.31, and max pain is $78,500. At-the-money implied volatility is 38.0%. 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.

Call OI	Derive call	Deribit call	Strike	Deribit put	Derive put	Put OI
0	– / – 63%	–	65000	–	– / – 63%	0
0	$7910 / $8188 58%	$7760 / $8300 59%	70000	$20.00 / $45.00 59%	$20.00 / $35.00 58%	0
0	–	$6700 / $7360 55%	71000	$30.00 / $50.00 55%	–	0
0	$5914 / $6216 51%	$5780 / $6360 50%	72000	$40.00 / $60.00 50%	$42.00 / $60.00 51%	0
0	–	$4800 / $5340 46%	73000	$60.00 / $80.00 46%	–	0
0	$3954 / $4286 44%	$3880 / $4400 42%	74000	$100.00 / $115 42%	$100.00 / $115 44%	1
0	–	$2860 / $3440 40%	75000	$170 / $190 40%	–	0
0	–	$2520 / $2980 39%	75500	$240 / $255 39%	–	0
0	$2320 / $2489 38%	$2100 / $2580 38%	76000	$330 / $345 38%	$333 / $358 38%	0
0	–	$1680 / $2180 38%	76500	$450 / $465 38%	–	0
5	$1618 / $1738 37%	$1380 / $1840 38%	77000	$610 / $625 38%	$605 / $654 37%	0
0	–	$1300 / $1380 38%	77500	$810 / $825 38%	–	0
0	$1062 / $1149 37%	$1040 / $1120 38%	78000	$1040 / $1080 38%	$1016 / $1090 37%	0
0	–	$840 / $900 39%	78500	$1320 / $1360 39%	–	0
5	$665 / $727 39%	$660 / $715 39%	79000	$1440 / $1840 39%	$1591 / $1703 39%	5
0	–	$520 / $565 40%	79500	$1820 / $2200 40%	–	0
0	$415 / $449 41%	$410 / $445 40%	80000	$2180 / $2640 40%	$2302 / $2458 41%	5
0	–	$310 / $355 41%	80500	$2560 / $3060 41%	–	0
0	$251 / $283 43%	$240 / $285 42%	81000	$2980 / $3500 42%	$3108 / $3322 43%	0
0	–	$190 / $230 43%	81500	$3440 / $3900 43%	–	0
1	$148 / $169 45%	$150 / $185 44%	82000	$3900 / $4380 44%	$3928 / $4280 45%	0
0	–	$110 / $145 45%	82500	$4360 / $4880 45%	–	0
0	–	$90.00 / $120 46%	83000	$4840 / $5420 46%	–	0
0	$57.00 / $77.00 49%	$50.00 / $80.00 49%	84000	$5760 / $6300 49%	$5849 / $6168 49%	0
0	$29.00 / $57.00 51%	$30.00 / $55.00 51%	85000	$6780 / $7300 51%	$6839 / $7141 51%	0
0	$20.00 / $35.00 52%	$20.00 / $40.00 53%	86000	$7760 / $8300 53%	$7840 / $8119 52%	0
0	–	$10.00 / $30.00 55%	87000	$8700 / $9240 55%	–	0
0	$6.00 / $18.00 56%	$5.00 / $25.00 57%	88000	$9700 / $10240 57%	$9841 / $10097 56%	0
0	–	– / $20.00 59%	89000	$10740 / $11280 59%	–	0
0	– / – 58%	–	90000	–	– / – 58%	0
0	– / – 58%	–	95000	–	– / – 58%	0