C Options History — April 2021

In April 2021, C traded between $69.85 and $73.78. ATM implied volatility averaged 29.0%, placing in the 1.4% IV rank vs the trailing year. The 30-day expected move averaged 8.1%. IV traded above realized volatility by 10.6% (HV 20d: 18.3%). Max pain ranged from $70.00 to $72.50. Net GEX was positive for 21 of 21 trading days. Term structure was in contango for 6 of 21 days. Put/call ratio averaged 0.52.

Notable Days

2021-04-29: Highest Volume — 808,619 contracts
2021-04-15: Largest IV drop — 13.7% change
2021-04-20: Highest IV Rank — 5.6%
2021-04-01: Largest Expected Move — 10.2%

Monthly Statistics

Metric	Avg	Min	Max	Open	Close
Price	$72.15	$69.85	$73.78	$72.81	$71.33
Max Pain	$70.14	$70.00	$72.50	$72.50	$70.50
ATM IV	29.0%	25.1%	34.0%	34.0%	26.6%
Expected Move	8.1%	7.1%	10.2%	10.2%	7.6%
HV 20d	18.3%	15.0%	25.4%	25.4%	21.2%
HV 60d	27.9%	24.0%	33.1%	33.1%	24.9%
IV Rank	1.4%	0.0%	5.6%	2.8%	3.4%
IV Percentile	1.1%	0.0%	5.6%	5.6%	2.8%
Term Structure	-0.3%	-1.1%	0.7%	-0.2%	-0.2%
VWIV	28.9%	24.8%	36.3%	36.3%	28.2%
Skew 25d	0.7%	-0.0%	1.6%	0.2%	1.6%
Skew 10d	2.7%	-3.1%	8.4%	2.7%	4.1%
Call IV 25d	29.3%	25.8%	34.4%	34.4%	27.1%
Put IV 25d	30.0%	26.3%	34.6%	34.6%	28.6%
Bid-Ask Spread %	3.50	2.35	7.59	3.10	4.26
Gamma HHI	0.09	0.07	0.17	0.09	0.09
Net GEX	43.5M	11.9M	77.8M	40.3M	11.9M
Net DEX	-1.96B	-2.50B	-1.11B	-2.31B	-1.11B
Net VEX	-16.5M	-18.4M	-15.6M	-16.3M	-18.4M
Div Yield	0.0%	0.0%	0.0%	0.0%	0.0%
P/C Ratio	0.52	0.05	0.95	0.66	0.73
Total Volume	120,232.381	34,466	808,619	97,631	145,783
Total OI	1,689,368.952	1,598,384	1,782,255	1,609,419	1,722,418

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 Vol	Put Vol	Call OI	Put OI
2021-04-01	$72.81	$72.50	34.0%	10.2%	25.4%	2.8%	36.3%	0.2%	-0.2%	40.3M	-2.31B	-16.3M	0.66	3.10	58,939	38,692	779,036	830,383
2021-04-05	$72.69	$70.00	33.8%	9.2%	25.3%	2.7%	32.5%	0.1%	-0.8%	46.9M	-2.22B	-16.1M	0.87	3.09	18,425	16,041	767,678	830,706
2021-04-06	$72.44	$70.00	33.1%	9.1%	22.4%	1.3%	31.6%	1.0%	-0.9%	46.3M	-2.11B	-16.5M	0.70	3.32	32,757	22,843	777,797	842,422
2021-04-07	$72.58	$70.00	32.1%	8.9%	21.2%	0.0%	31.1%	0.9%	-0.4%	49.0M	-2.13B	-16.2M	0.44	4.41	38,621	16,890	782,450	851,327
2021-04-08	$72.44	$70.00	32.5%	8.9%	17.7%	0.7%	31.9%	1.2%	-0.3%	46.3M	-2.12B	-16.1M	0.51	2.86	53,011	26,811	782,538	858,609
2021-04-09	$72.38	$70.00	31.7%	8.7%	17.7%	0.0%	30.7%	0.8%	-1.1%	55.8M	-2.10B	-16.3M	0.48	2.57	47,866	22,978	797,709	866,074
2021-04-12	$72.67	$70.00	30.8%	8.7%	15.4%	0.0%	30.5%	0.9%	-0.6%	47.1M	-2.16B	-15.8M	0.37	2.66	69,658	25,645	782,492	865,496
2021-04-13	$72.03	$70.00	31.1%	8.6%	15.0%	0.5%	30.8%	0.9%	-1.0%	39.5M	-1.97B	-16.0M	0.61	3.31	44,865	27,537	798,786	876,306
2021-04-14	$72.70	$70.00	30.0%	8.4%	15.2%	0.0%	29.9%	0.9%	-0.7%	49.3M	-2.15B	-16.0M	0.55	4.53	77,033	42,289	804,875	884,320
2021-04-15	$72.31	$70.00	25.9%	7.4%	15.3%	0.0%	26.0%	0.1%	0.1%	42.4M	-1.96B	-15.6M	0.41	2.35	137,696	56,797	817,448	900,752
2021-04-16	$72.40	$70.00	27.6%	7.3%	15.3%	3.5%	26.0%	-0.0%	-0.2%	71.1M	-1.95B	-16.3M	0.46	5.05	85,237	38,985	857,359	924,896
2021-04-19	$72.16	$70.00	26.2%	7.5%	15.0%	0.7%	26.6%	0.8%	0.4%	37.4M	-1.95B	-16.6M	0.69	3.07	52,608	36,473	751,568	854,988
2021-04-20	$69.85	$70.00	28.6%	8.2%	18.3%	5.6%	28.9%	1.0%	-0.2%	17.1M	-1.27B	-16.9M	0.95	7.59	48,544	46,227	781,540	883,506
2021-04-21	$70.69	$70.00	27.0%	7.7%	17.7%	2.2%	27.5%	0.8%	0.1%	29.5M	-1.50B	-16.8M	0.47	2.70	46,546	21,882	799,786	906,440
2021-04-22	$70.03	$70.00	27.7%	7.9%	18.0%	4.1%	28.3%	0.7%	0.3%	21.3M	-1.31B	-16.7M	0.57	3.18	52,053	29,926	809,932	915,383
2021-04-23	$71.41	$70.00	26.0%	7.4%	18.2%	0.2%	28.5%	0.7%	0.7%	34.5M	-1.72B	-17.3M	0.30	3.93	80,456	24,212	828,227	930,319
2021-04-26	$72.45	$70.00	26.6%	7.4%	18.4%	1.7%	26.3%	0.8%	-0.3%	46.5M	-2.06B	-16.7M	0.32	3.04	44,126	14,205	813,871	921,518
2021-04-27	$72.97	$70.00	26.1%	7.3%	17.9%	0.6%	25.8%	0.6%	-0.2%	51.1M	-2.22B	-17.3M	0.39	2.50	25,048	9,756	825,931	925,401
2021-04-28	$73.06	$70.00	25.5%	7.2%	17.0%	0.0%	25.0%	0.8%	0.0%	52.8M	-2.27B	-16.5M	0.47	3.04	26,414	12,386	830,559	928,685
2021-04-29	$73.78	$70.00	25.1%	7.1%	17.3%	0.0%	24.8%	0.5%	-0.1%	77.8M	-2.50B	-16.6M	0.05	2.94	766,503	42,116	835,478	931,739
2021-04-30	$71.33	$70.50	26.6%	7.6%	21.2%	3.4%	28.2%	1.6%	-0.2%	11.9M	-1.11B	-18.4M	0.73	4.26	84,030	61,753	770,976	951,442