BSX Options History — September 2025

In September 2025, BSX traded between $96.96 and $108.06. ATM implied volatility averaged 28.7%, placing in the 30.9% IV rank vs the trailing year. The 30-day expected move averaged 7.7%. IV traded above realized volatility by 11.7% (HV 20d: 17.0%). Max pain ranged from $100.00 to $105.00. Net GEX was positive for 19 of 21 trading days. Term structure was in contango for 6 of 21 days. Put/call ratio averaged 0.79.

Notable Days

2025-09-16: Highest Volume — 45,563 contracts
2025-09-10: Largest IV spike — 16.2% change
2025-09-24: Highest IV Rank — 56.9%
2025-09-24: Largest Expected Move — 9.7%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$101.61	$96.96	$108.06	$106.73	$97.44
Max Pain	$103.57	$100.00	$105.00	$105.00	$100.00
ATM IV	28.7%	21.0%	37.7%	21.0%	30.9%
Expected Move	7.7%	5.8%	9.7%	5.8%	7.0%
HV 20d	17.0%	14.2%	20.4%	17.3%	16.5%
HV 60d	17.9%	17.1%	18.9%	18.0%	17.5%
IV Rank	30.9%	10.5%	56.9%	10.5%	37.0%
IV Percentile	71.8%	27.8%	96.8%	27.8%	88.1%
Term Structure	-0.0%	-2.3%	5.2%	-0.4%	-1.5%
VWIV	27.2%	20.6%	34.7%	21.3%	24.2%
Skew 25d	2.2%	-13.5%	5.7%	3.4%	2.3%
Skew 10d	10.9%	-2.9%	26.7%	8.1%	12.6%
Call IV 25d	27.9%	18.9%	38.4%	19.5%	30.3%
Put IV 25d	30.1%	20.2%	40.5%	23.0%	32.5%
Bid-Ask Spread %	45.79	22.68	76.46	28.58	47.50
Gamma HHI	0.13	0.08	0.17	0.15	0.13
Net GEX	14.0M	-5.1M	30.1M	28.1M	22.4M
Net DEX	-97.2M	-352.0M	166.2M	-326.4M	3.4M
Net VEX	-2.5M	-2.9M	-2.1M	-2.1M	-2.5M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.79	0.09	6.63	0.61	1.20
Total Volume	19,702.714	3,502	45,563	5,817	25,927
Total OI	208,910.286	159,051	258,759	159,051	245,175

Daily Data (21 trading days)

Date	Price	Max Pain	ATM IV	Exp Move	HV 20d	IV Rank	VWIV	Skew 25d	Term Str	GEX	DEX	VEX	P/C	Spread %	Call Wall	Put Wall	Call Vol	Put Vol	Call OI	Put OI
2025-09-02	$106.73	$105.00	21.0%	5.8%	17.3%	10.5%	21.3%	3.4%	-0.4%	28.1M	-326.4M	-2.1M	0.61	28.58	N/A	N/A	3,618	2,199	93,148	65,903
2025-09-03	$107.23	$105.00	22.6%	6.0%	15.9%	15.3%	22.6%	5.7%	-1.5%	30.1M	-352.0M	-2.2M	6.63	57.90	N/A	N/A	2,193	14,537	94,768	66,979
2025-09-04	$106.88	$105.00	22.0%	6.4%	14.5%	13.5%	21.5%	3.6%	-0.5%	23.1M	-292.7M	-2.2M	0.44	59.35	N/A	N/A	3,205	1,399	95,186	77,210
2025-09-05	$107.14	$105.00	22.3%	6.4%	14.4%	12.0%	21.4%	3.8%	-0.2%	22.8M	-320.3M	-2.2M	0.29	54.68	N/A	N/A	5,656	1,649	96,471	77,690
2025-09-08	$107.82	$105.00	22.4%	6.0%	14.4%	12.2%	21.3%	3.7%	-1.2%	23.7M	-328.1M	-2.2M	0.39	34.03	N/A	N/A	2,517	985	94,529	77,316
2025-09-09	$108.06	$105.00	22.2%	6.0%	14.2%	11.7%	20.6%	3.3%	-1.1%	26.5M	-343.1M	-2.2M	0.86	40.00	N/A	N/A	11,864	10,229	95,199	77,702
2025-09-10	$105.03	$105.00	25.8%	7.3%	17.6%	22.2%	24.3%	3.3%	0.0%	7.5M	-131.9M	-2.4M	0.10	52.49	N/A	N/A	36,418	3,625	105,124	87,220
2025-09-11	$104.67	$105.00	24.8%	6.9%	17.6%	19.3%	24.2%	0.0%	-0.6%	13.9M	-142.7M	-2.5M	0.20	39.72	N/A	N/A	13,131	2,612	116,401	89,612
2025-09-12	$102.91	$105.00	24.6%	6.9%	18.2%	18.6%	24.8%	1.4%	-1.2%	393.5K	5.2M	-2.4M	0.43	76.46	N/A	N/A	6,088	2,590	110,964	91,966
2025-09-15	$100.29	$105.00	26.0%	7.4%	20.1%	22.7%	25.6%	3.2%	3.6%	-5.1M	124.8M	-2.2M	0.59	72.08	N/A	N/A	4,705	2,781	105,696	90,068
2025-09-16	$99.12	$105.00	27.3%	7.8%	20.4%	26.6%	28.5%	3.8%	3.3%	-3.5M	166.2M	-2.2M	0.43	30.50	N/A	N/A	31,953	13,610	108,951	90,888
2025-09-17	$98.52	$105.00	29.3%	8.4%	20.4%	32.3%	29.6%	3.4%	2.7%	4.6M	87.7M	-2.6M	0.27	75.34	N/A	N/A	26,973	7,415	139,527	100,340
2025-09-18	$98.48	$105.00	31.6%	8.9%	17.2%	39.1%	31.3%	3.4%	3.3%	13.4M	1.2M	-2.7M	0.95	31.17	N/A	N/A	17,094	16,223	149,544	98,280
2025-09-19	$97.56	$105.00	31.7%	8.6%	17.2%	39.3%	30.5%	2.9%	5.2%	11.4M	33.0M	-2.7M	0.38	31.36	N/A	N/A	7,703	2,926	158,447	100,312
2025-09-22	$97.06	$105.00	35.0%	9.1%	16.6%	49.0%	31.8%	2.8%	-2.1%	12.2M	27.3M	-2.6M	0.09	22.68	N/A	N/A	27,019	2,322	124,907	85,913
2025-09-23	$97.30	$100.00	36.6%	9.6%	16.7%	53.7%	33.7%	2.4%	-1.8%	13.3M	-21.4M	-2.7M	0.76	29.16	N/A	N/A	18,598	14,073	128,785	87,214
2025-09-24	$98.17	$100.00	37.7%	9.7%	16.8%	56.9%	34.3%	2.1%	-2.3%	16.2M	-84.7M	-2.9M	0.14	28.92	N/A	N/A	13,678	1,892	136,972	100,484
2025-09-25	$98.06	$100.00	37.2%	9.6%	16.8%	55.3%	34.7%	2.3%	-1.8%	15.6M	-75.0M	-2.8M	1.21	41.86	N/A	N/A	10,434	12,651	144,324	101,576
2025-09-26	$98.37	$100.00	36.5%	9.1%	17.0%	53.2%	33.1%	2.1%	-1.4%	5.9M	-67.5M	-2.8M	0.23	51.56	N/A	N/A	5,379	1,217	146,632	104,601
2025-09-29	$96.96	$100.00	35.0%	8.9%	17.4%	49.0%	31.5%	-13.5%	-1.4%	12.0M	-4.2M	-2.6M	0.47	56.33	N/A	N/A	16,727	7,942	129,409	95,683
2025-09-30	$97.44	$100.00	30.9%	7.0%	16.5%	37.0%	24.2%	2.3%	-1.5%	22.4M	3.4M	-2.5M	1.20	47.50	N/A	N/A	11,768	14,159	143,316	101,859