BX Options History — April 2025

In April 2025, BX traded between $118.15 and $147.81. ATM implied volatility averaged 51.5%, placing in the 60.9% IV rank vs the trailing year. The 30-day expected move averaged 14.7%. IV traded below realized volatility by 27.6% (HV 20d: 79.1%). Max pain ranged from $140.00 to $165.00. Net GEX was positive for 3 of 21 trading days. Term structure was in contango for 6 of 21 days. Put/call ratio averaged 1.47.

Notable Days

2025-04-21: Highest Volume — 31,205 contracts
2025-04-10: Largest IV spike — 44.7% change
2025-04-03: Highest IV Rank — 100.0%
2025-04-08: Largest Expected Move — 20.9%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$130.67	$118.15	$147.81	$142.82	$130.37
Max Pain	$157.48	$140.00	$165.00	$165.00	$140.00
ATM IV	51.5%	39.0%	75.9%	41.5%	39.0%
Expected Move	14.7%	10.7%	20.9%	11.3%	12.9%
HV 20d	79.1%	45.1%	94.2%	45.1%	92.4%
HV 60d	53.6%	37.0%	61.4%	37.0%	60.8%
IV Rank	60.9%	30.4%	100.0%	74.5%	30.4%
IV Percentile	96.2%	86.9%	100.0%	97.2%	86.9%
Term Structure	-1.6%	-5.9%	3.2%	-2.3%	3.2%
VWIV	50.6%	37.6%	68.9%	37.8%	44.2%
Skew 25d	13.7%	0.9%	28.0%	0.9%	11.3%
Skew 10d	26.7%	-8.7%	48.9%	-8.7%	16.0%
Call IV 25d	44.2%	35.9%	60.3%	37.8%	35.9%
Put IV 25d	57.9%	38.7%	87.7%	38.7%	47.3%
Bid-Ask Spread %	58.60	35.29	80.89	65.66	43.06
Gamma HHI	0.05	0.04	0.07	0.05	0.07
Net GEX	-5.3M	-12.6M	9.4M	2.0M	-10.8M
Net DEX	458.7M	-9.6M	751.6M	197.9M	356.2M
Net VEX	-6.9M	-7.6M	-6.1M	-6.9M	-7.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	1.47	0.46	4.23	1.28	4.23
Total Volume	15,812.286	6,700	31,205	6,956	19,232
Total OI	329,246.667	304,592	356,114	306,041	356,114

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
2025-04-01	$142.82	$165.00	41.5%	11.3%	45.1%	74.5%	37.8%	0.9%	-2.3%	2.0M	197.9M	-6.9M	1.28	65.66	N/A	N/A	3,051	3,905	137,449	168,592
2025-04-02	$147.81	$165.00	41.0%	10.7%	47.0%	72.4%	37.6%	6.8%	-2.3%	9.4M	-9.6M	-7.1M	0.46	61.94	N/A	N/A	10,255	4,738	138,431	171,065
2025-04-03	$133.25	$165.00	50.6%	13.4%	57.4%	100.0%	47.9%	5.0%	-5.9%	-12.6M	529.6M	-6.7M	1.05	63.85	N/A	N/A	9,960	10,429	144,085	173,965
2025-04-04	$127.09	$165.00	66.3%	18.7%	59.4%	100.0%	62.0%	24.7%	-2.4%	-12.3M	691.5M	-6.5M	1.06	69.83	N/A	N/A	14,330	15,228	147,777	176,250
2025-04-07	$123.59	$165.00	75.3%	19.6%	58.9%	100.0%	68.9%	22.2%	-5.2%	-6.9M	633.7M	-6.4M	1.66	66.85	N/A	N/A	5,608	9,307	134,148	170,444
2025-04-08	$118.15	$165.00	75.9%	20.9%	60.5%	100.0%	68.4%	27.4%	-3.4%	-7.8M	751.6M	-6.2M	1.10	72.12	N/A	N/A	7,581	8,315	136,586	176,459
2025-04-09	$137.57	$160.00	49.8%	13.5%	82.7%	50.8%	48.9%	17.3%	-2.6%	-3.2M	317.4M	-7.1M	0.79	80.89	N/A	N/A	10,811	8,543	139,214	178,884
2025-04-10	$126.21	$160.00	72.1%	19.3%	87.3%	93.0%	66.0%	22.0%	-3.9%	-7.3M	608.7M	-6.7M	2.67	67.32	N/A	N/A	3,848	10,267	143,976	181,782
2025-04-11	$127.81	$160.00	58.6%	16.6%	86.5%	67.4%	61.5%	28.0%	-1.3%	-8.3M	617.8M	-6.7M	0.62	61.23	N/A	N/A	7,179	4,435	144,312	187,310
2025-04-14	$131.17	$160.00	49.8%	14.1%	84.4%	50.8%	48.0%	14.9%	0.3%	-5.5M	484.9M	-6.8M	0.66	70.76	N/A	N/A	4,506	2,965	142,097	181,407
2025-04-15	$133.53	$160.00	47.7%	13.6%	84.6%	46.7%	45.9%	13.2%	0.1%	-4.1M	419.1M	-6.7M	1.00	69.83	N/A	N/A	3,346	3,354	144,459	182,337
2025-04-16	$128.31	$160.00	50.0%	14.3%	84.5%	51.2%	53.2%	14.8%	-1.0%	-6.1M	585.5M	-6.6M	1.53	71.07	N/A	N/A	5,728	8,747	145,790	183,719
2025-04-17	$130.55	$160.00	43.0%	12.4%	84.9%	38.0%	43.7%	10.8%	-1.0%	-4.2M	525.3M	-6.6M	0.75	64.29	N/A	N/A	8,704	6,556	148,619	186,872
2025-04-21	$119.57	$160.00	54.6%	16.1%	89.6%	59.8%	56.7%	10.0%	-2.3%	-10.2M	738.0M	-6.1M	0.82	51.89	N/A	N/A	17,177	14,028	134,060	177,415
2025-04-22	$124.78	$155.00	47.9%	14.6%	90.8%	47.2%	46.6%	10.4%	-3.6%	-7.2M	594.4M	-6.8M	1.02	49.44	N/A	N/A	8,053	8,236	145,092	186,135
2025-04-23	$126.84	$150.00	47.7%	14.2%	91.3%	46.9%	48.6%	10.5%	-2.0%	-6.6M	512.1M	-7.0M	0.61	44.25	N/A	N/A	13,315	8,177	148,789	192,388
2025-04-24	$134.75	$150.00	42.9%	12.7%	94.2%	37.7%	44.4%	10.1%	-1.6%	1.2M	239.0M	-7.5M	0.93	40.03	N/A	N/A	6,582	6,091	152,072	197,833
2025-04-25	$132.97	$150.00	44.1%	12.8%	94.2%	40.0%	45.6%	9.5%	0.5%	-2.7M	307.3M	-7.4M	1.85	45.31	N/A	N/A	5,178	9,565	154,951	200,281
2025-04-28	$133.70	$150.00	42.2%	13.1%	92.7%	36.5%	44.2%	9.3%	2.4%	-3.7M	286.7M	-7.6M	2.94	35.78	N/A	N/A	2,925	8,612	151,214	200,774
2025-04-29	$133.18	$142.00	41.5%	13.1%	92.5%	35.1%	41.9%	8.3%	0.5%	-4.6M	245.6M	-7.5M	3.87	35.29	N/A	N/A	2,711	10,480	152,687	198,346
2025-04-30	$130.37	$140.00	39.0%	12.9%	92.4%	30.4%	44.2%	11.3%	3.2%	-10.8M	356.2M	-7.4M	4.23	43.06	N/A	N/A	3,679	15,553	153,858	202,256