Put/call open interest extremes

Which chains were most skewed by put versus call open interest on Oct 16, 2026?

Put open interest divided by call open interest, for tickers with at least 50,000 total open contracts. The 25 highest ratios appear first, followed by the 25 lowest. Data through Oct 16, 2026 close. Descriptive only, not a recommendation.

At a glance

50 tickers qualified. First five: CIA (138.59), EMB (19.20), KBE (8.95), IHI (8.15), XEL (7.38).

Put/call open interest extremes as of Oct 16, 2026 close
#	Ticker	Close	Open interest	Put/call OI ratio
1	CIA	3.44	62,395	138.59
2	EMB	91.52	69,235	19.20
3	KBE	63.62	215,700	8.95
4	IHI	53.74	124,034	8.15
5	XEL	76.31	202,480	7.38
6	EWC	60.58	397,574	6.22
7	WBD	30.98	2,502,421	4.30
8	IYR	97.39	191,092	4.29
9	ARDX	3.09	201,015	3.98
10	XLP	87.62	648,584	3.96
11	EFA	103.55	1,144,051	3.05
12	IGV	104.34	1,329,856	3.02
13	HYG	76.86	9,306,382	2.98
14	XRT	87.02	102,047	2.89
15	CARR	55.00	135,247	2.88
16	CLNE	1.50	54,961	2.80
17	KRE	69.84	2,029,591	2.75
18	BURL	262.66	53,141	2.65
19	UAA	4.74	497,093	2.53
20	ARES	112.27	62,953	2.51
21	EWJ	94.88	92,262	2.41
22	NVS	150.62	98,258	2.38
23	XSP	765.94	777,520	2.35
24	IWM	270.44	9,513,883	2.33
25	EEM	62.85	4,026,254	2.32
26	DRVN	11.92	58,204	0.00
27	EWZS	15.69	157,601	0.01
28	CODI	10.01	258,567	0.01
29	VIXM	12.84	59,880	0.01
30	EH	3.61	234,144	0.02
31	CRON	3.21	99,199	0.03
32	DOMO	3.59	87,492	0.03
33	IVA	2.94	57,388	0.03
34	BZAI	0.25	75,614	0.03
35	VYX	7.58	93,349	0.04
36	REI	1.37	135,433	0.04
37	DBA	28.22	99,318	0.04
38	UNM	92.23	91,741	0.04
39	OBE	11.97	78,242	0.04
40	LAES	1.79	836,814	0.04
41	DEFT	0.43	73,642	0.04
42	CHGG	0.73	127,423	0.04
43	WSC	15.88	100,581	0.05
44	GENI	6.35	121,032	0.05
45	CORN	18.19	131,579	0.05
46	LDI	0.53	70,822	0.05
47	INO	0.99	108,250	0.05
48	TECH	72.57	63,264	0.05
49	KNX	64.81	161,941	0.06
50	BMEA	0.87	55,460	0.06

Screens describe what the data shows after the close. They are not trade recommendations; see the disclaimer and the methodology.