What is Put-Call Ratio (PCR) and how do I interpret it?

PCR is the ratio of total Put Open Interest to Call Open Interest. High PCR (>1.2) indicates bullish sentiment as more puts provide support. Low PCR (<0.8) indicates bearish sentiment as more calls provide resistance. Neutral PCR (0.8-1.2) shows balanced market sentiment.

What is COI PCR and how is it different from regular PCR?

COI PCR (Change in OI PCR) measures the ratio of intraday Put OI change to Call OI change. Unlike regular PCR which uses total accumulated OI, COI PCR uses only today's changes, making it more responsive and valuable for intraday traders.

What is COI Strength and how do I use it?

COI Strength = (PE COI - CE COI) / (|PE COI| + |CE COI|). This normalized indicator measures directional bias on a scale from -1 to +1. Values > 0.3 indicate bullish sentiment, < -0.3 indicate bearish sentiment, and -0.3 to 0.3 indicate neutral activity.

How often does PCR data update?

PCR data updates based on the selected interval. 1 Minute interval provides real-time intraday tracking with updates every minute during market hours. 1 Day interval shows end-of-day PCR values for historical analysis.

What do negative PCR values mean?

Negative PCR occurs when Call OI Change is negative while Put OI is also negative, or vice versa. Common scenarios include: PE > 0 and CE 0 (strong bearish), or both negative (neutral, low conviction). Use COI Strength for clearer signals in these cases.

How do I use PCR with price action?

Combine PCR with price for better signals. Use divergence trading when price and PCR move opposite. Look for confirmation when price and PCR align. Watch for extreme COI Strength values at support/resistance for reversal signals. Monitor sudden COI Strength shifts as they often precede intraday trend changes.

TCS

Q: What is COI PCR and how is it different from regular PCR?

COI PCR (Change in OI PCR) measures the ratio of intraday Put OI change to Call OI change. Unlike regular PCR which uses total accumulated OI, COI PCR uses only today's changes, making it more responsive and valuable for intraday traders.

Q: What is COI Strength and how do I use it?

COI Strength = (PE COI - CE COI) / (|PE COI| + |CE COI|). This normalized indicator measures directional bias on a scale from -1 to +1. Values > 0.3 indicate bullish sentiment, < -0.3 indicate bearish sentiment, and -0.3 to 0.3 indicate neutral activity.

Q: How often does PCR data update?

PCR data updates based on the selected interval. 1 Minute interval provides real-time intraday tracking with updates every minute during market hours. 1 Day interval shows end-of-day PCR values for historical analysis.

Q: What do negative PCR values mean?

Negative PCR occurs when Call OI Change is negative while Put OI is also negative, or vice versa. Common scenarios include: PE > 0 and CE 0 (strong bearish), or both negative (neutral, low conviction). Use COI Strength for clearer signals in these cases.

Tata Consultancy Serv Lt

3238.2 +9.00 (0.28%)

L: 3222.4 H: 3271.6

Put-Call Ratio - TCS

05 Dec 2025 04:10 PM IST Market Closed

Expiry

Put OI

38,878

Call OI

44,628

PCR

0.87

Put OI Chg

-799

Call OI Chg

-491

COI PCR

1.63

COI Strength

-0.24

Interval

On 9:20 TCS was trading at 3232 with pcr value 0.69

On 9:25 TCS was trading at 3229.8 with pcr value 0.68

On 9:30 TCS was trading at 3237.9 with pcr value 0.79

On 9:35 TCS was trading at 3242.6 with pcr value 0.84

On 9:40 TCS was trading at 3242.6 with pcr value 0.85

On 9:45 TCS was trading at 3243 with pcr value 0.84

On 9:50 TCS was trading at 3245 with pcr value 0.84

On 9:55 TCS was trading at 3243.8 with pcr value 0.88

On 10:00 TCS was trading at 3245.5 with pcr value 0.89

On 10:05 TCS was trading at 3245.1 with pcr value 0.89

On 10:10 TCS was trading at 3247.7 with pcr value 0.89

On 10:15 TCS was trading at 3245.6 with pcr value 0.89

On 10:20 TCS was trading at 3241.4 with pcr value 0.89

On 10:25 TCS was trading at 3246 with pcr value 0.9

On 10:30 TCS was trading at 3248.6 with pcr value 0.9

On 10:35 TCS was trading at 3236.3 with pcr value 0.91

On 10:40 TCS was trading at 3244.1 with pcr value 0.9

On 10:45 TCS was trading at 3255.8 with pcr value 0.91

On 10:50 TCS was trading at 3267 with pcr value 0.9

On 10:55 TCS was trading at 3267.7 with pcr value 0.91

On 11:00 TCS was trading at 3264 with pcr value 0.91

On 11:05 TCS was trading at 3260 with pcr value 0.91

On 11:10 TCS was trading at 3261.4 with pcr value 0.91

On 11:15 TCS was trading at 3262.1 with pcr value 0.92

On 11:20 TCS was trading at 3258.8 with pcr value 0.91

On 11:25 TCS was trading at 3260.9 with pcr value 0.91

On 11:30 TCS was trading at 3253.5 with pcr value 0.91

On 11:35 TCS was trading at 3258.5 with pcr value 0.91

On 11:40 TCS was trading at 3258.2 with pcr value 0.91

On 11:45 TCS was trading at 3260.5 with pcr value 0.91

On 11:50 TCS was trading at 3259.8 with pcr value 0.91

On 11:55 TCS was trading at 3259.6 with pcr value 0.91

On 12:00 TCS was trading at 3261.4 with pcr value 0.91

On 12:05 TCS was trading at 3260.1 with pcr value 0.91

On 12:10 TCS was trading at 3259 with pcr value 0.91

On 12:15 TCS was trading at 3260.4 with pcr value 0.91

On 12:20 TCS was trading at 3256.8 with pcr value 0.91

On 12:25 TCS was trading at 3258.2 with pcr value 0.91

On 12:30 TCS was trading at 3253.2 with pcr value 0.91

On 12:35 TCS was trading at 3257 with pcr value 0.91

On 12:40 TCS was trading at 3257.1 with pcr value 0.91

On 12:45 TCS was trading at 3259.3 with pcr value 0.91

On 12:50 TCS was trading at 3259.4 with pcr value 0.91

On 12:55 TCS was trading at 3260.4 with pcr value 0.91

On 13:00 TCS was trading at 3257.1 with pcr value 0.91

On 13:05 TCS was trading at 3239.7 with pcr value 0.9

On 13:10 TCS was trading at 3235.9 with pcr value 0.9

On 13:15 TCS was trading at 3243.7 with pcr value 0.89

On 13:20 TCS was trading at 3243.3 with pcr value 0.89

On 13:25 TCS was trading at 3243.8 with pcr value 0.89

On 13:30 TCS was trading at 3248.2 with pcr value 0.9

On 13:35 TCS was trading at 3240 with pcr value 0.9

On 13:40 TCS was trading at 3239.9 with pcr value 0.9

On 13:45 TCS was trading at 3237.9 with pcr value 0.9

On 13:50 TCS was trading at 3238.3 with pcr value 0.9

On 13:55 TCS was trading at 3239.9 with pcr value 0.9

On 14:00 TCS was trading at 3240 with pcr value 0.9

On 14:05 TCS was trading at 3238.8 with pcr value 0.89

On 14:10 TCS was trading at 3236.6 with pcr value 0.89

On 14:15 TCS was trading at 3230.1 with pcr value 0.89

On 14:20 TCS was trading at 3229.1 with pcr value 0.89

On 14:25 TCS was trading at 3229.8 with pcr value 0.88

On 14:30 TCS was trading at 3233.9 with pcr value 0.87

On 14:35 TCS was trading at 3235 with pcr value 0.87

On 14:40 TCS was trading at 3233.3 with pcr value 0.87

On 14:45 TCS was trading at 3235.5 with pcr value 0.87

On 14:50 TCS was trading at 3236.5 with pcr value 0.87

On 14:55 TCS was trading at 3236 with pcr value 0.87

On 15:00 TCS was trading at 3238.4 with pcr value 0.87

On 15:05 TCS was trading at 3237.1 with pcr value 0.87

On 15:10 TCS was trading at 3235 with pcr value 0.87

On 15:15 TCS was trading at 3235 with pcr value 0.87

On 15:20 TCS was trading at 3244.6 with pcr value 0.87

On 15:25 TCS was trading at 3243 with pcr value 0.87

On 15:30 TCS was trading at 3242.7 with pcr value 0.87

On 15:35 TCS was trading at 3241 with pcr value 0.87

On 15:40 TCS was trading at 3238.2 with pcr value 0.87

On 15:45 TCS was trading at 3238.2 with pcr value 0.87

On 15:50 TCS was trading at 3238.2 with pcr value 0.87

On 15:55 TCS was trading at 3238.2 with pcr value 0.87

On 16:00 TCS was trading at 3238.2 with pcr value 0.87

On 16:05 TCS was trading at 3238.2 with pcr value 0.87

On 16:10 TCS was trading at 3238.2 with pcr value 0.87

On 16:11 TCS was trading at 3238.2 with pcr value 0.87

Put-Call-Ratio Table

PCR Table Expiry

Note:- click on symbol to see more detailed view

	PCR OI			COI PCR
Symbol	Put	Call	Ratio	Put	Call	Ratio
360ONE	1,540	2,688	0.57	395	518	0.76
ABB	4,054	5,994	0.68	67	209	0.32
ABCAPITAL	4,336	6,202	0.70	452	645	0.70
ADANIENSOL	2,692	4,416	0.61	73	622	0.12
ADANIENT	25,544	41,737	0.61	1,541	-933	-1.65
ADANIGREEN	8,301	19,118	0.43	109	1,054	0.10
ADANIPORTS	9,285	16,693	0.56	138	-28	-4.93
ALKEM	806	996	0.81	64	115	0.56
AMBER	6,099	11,415	0.53	1,617	4,570	0.35
AMBUJACEM	8,477	11,396	0.74	388	656	0.59
ANGELONE	7,870	15,656	0.50	66	248	0.27
APLAPOLLO	1,508	1,942	0.78	141	-103	-1.37
APOLLOHOSP	6,305	12,227	0.52	113	-32	-3.53
ASHOKLEY	10,477	11,275	0.93	122	-386	-0.32
ASIANPAINT	18,090	21,493	0.84	-60	-735	0.08
ASTRAL	3,650	6,263	0.58	-167	-343	0.49
AUBANK	4,819	5,004	0.96	307	62	4.95
AUROPHARMA	4,221	8,608	0.49	129	327	0.39
AXISBANK	13,618	22,219	0.61	-150	526	-0.29
BAJAJ-AUTO	14,273	24,738	0.58	398	340	1.17
BAJAJFINSV	13,913	15,340	0.91	934	-547	-1.71
BAJFINANCE	21,003	28,118	0.75	2,200	-370	-5.95
BANDHANBNK	8,405	12,620	0.67	-214	-545	0.39
BANKBARODA	11,906	12,745	0.93	102	-770	-0.13
BANKINDIA	2,438	4,038	0.60	-25	49	-0.51
BDL	6,087	11,685	0.52	127	1,161	0.11
BEL	22,074	40,615	0.54	1,196	1,452	0.82
BHARATFORG	3,530	5,664	0.62	157	328	0.48
BHARTIARTL	17,251	31,878	0.54	-193	169	-1.14
BHEL	8,707	18,553	0.47	590	179	3.30
BIOCON	6,144	12,958	0.47	-119	583	-0.20
BLUESTARCO	588	1,097	0.54	31	18	1.72
BOSCHLTD	1,352	2,047	0.66	9	8	1.13
BPCL	4,452	6,395	0.70	268	269	1.00
BRITANNIA	3,939	6,082	0.65	92	-342	-0.27
BSE	13,793	20,720	0.67	579	-148	-3.91
CAMS	4,184	6,989	0.60	3,321	5,736	0.58
CANBK	11,237	15,472	0.73	473	216	2.19
CDSL	8,618	16,851	0.51	276	825	0.33
CGPOWER	4,809	8,908	0.54	217	585	0.37
CHOLAFIN	3,184	4,057	0.78	294	-39	-7.54
CIPLA	10,255	13,710	0.75	69	375	0.18
COALINDIA	9,222	11,767	0.78	-75	-109	0.69
COFORGE	8,971	15,260	0.59	-171	1,737	-0.10
COLPAL	6,259	8,017	0.78	-252	-377	0.67
CONCOR	6,245	8,850	0.71	20	-167	-0.12
CROMPTON	5,222	9,783	0.53	197	457	0.43
CUMMINSIND	3,089	3,803	0.81	142	94	1.51
CYIENT	2,162	2,761	0.78	52	176	0.30
DABUR	3,801	7,360	0.52	51	174	0.29
DALBHARAT	1,018	1,850	0.55	-40	56	-0.71
DELHIVERY	3,145	5,569	0.56	117	117	1.00
DIVISLAB	5,424	7,580	0.72	33	-124	-0.27
DIXON	20,092	42,819	0.47	1,132	3,596	0.31
DLF	13,365	19,236	0.69	-293	213	-1.38
DMART	5,045	9,676	0.52	175	499	0.35
DRREDDY	4,408	9,643	0.46	57	424	0.13
EICHERMOT	10,081	12,454	0.81	-291	-1,493	0.19
ETERNAL	14,582	26,847	0.54	651	3,640	0.18
EXIDEIND	3,295	4,650	0.71	46	116	0.40
FEDERALBNK	6,391	7,384	0.87	56	102	0.55
FORTIS	2,664	6,806	0.39	179	527	0.34
GAIL	11,403	19,647	0.58	-67	199	-0.34
GLENMARK	7,737	10,691	0.72	101	1,325	0.08
GMRAIRPORT	7,474	14,705	0.51	356	928	0.38
GODREJCP	2,915	3,728	0.78	111	192	0.58
GODREJPROP	5,274	10,458	0.50	297	1,098	0.27
GRASIM	7,833	9,019	0.87	101	-75	-1.35
HAL	23,636	46,034	0.51	963	6,581	0.15
HAVELLS	3,483	3,931	0.89	-4	352	-0.01
HCLTECH	11,464	16,735	0.69	1,372	3,071	0.45
HDFCAMC	3,513	5,059	0.69	-24	218	-0.11
HDFCBANK	37,133	58,300	0.64	2,210	1,528	1.45
HDFCLIFE	6,610	12,265	0.54	-163	-718	0.23
HEROMOTOCO	16,332	15,669	1.04	881	-989	-0.89
HFCL	3,196	7,477	0.43	243	1,091	0.22
HINDALCO	15,066	18,958	0.79	397	323	1.23
HINDPETRO	3,754	6,282	0.60	92	230	0.40
HINDUNILVR	5,835	9,011	0.65	-4,765	-10,112	0.47
HINDZINC	9,040	16,620	0.54	288	297	0.97
HUDCO	5,312	10,085	0.53	407	181	2.25
ICICIBANK	29,283	36,633	0.80	-155	1,182	-0.13
ICICIGI	2,181	3,315	0.66	134	161	0.83
ICICIPRULI	1,822	2,619	0.70	64	-41	-1.56
IDEA	14,242	27,730	0.51	488	707	0.69
IDFCFIRSTB	8,003	13,250	0.60	-198	-279	0.71
IEX	8,743	11,889	0.74	-55	85	-0.65
IIFL	2,217	3,840	0.58	72	321	0.22
INDHOTEL	5,000	8,087	0.62	66	160	0.41
INDIANB	3,866	9,888	0.39	-31	222	-0.14
INDIGO	26,190	38,172	0.69	9,499	16,523	0.57
INDUSINDBK	11,804	17,635	0.67	1	151	0.01
INDUSTOWER	8,705	12,536	0.69	1,844	2,212	0.83
INFY	39,912	56,163	0.71	5,978	5,226	1.14
INOXWIND	5,596	9,558	0.59	285	262	1.09
IOC	5,260	9,189	0.57	134	313	0.43
IRCTC	5,629	9,899	0.57	40	485	0.08
IREDA	4,955	9,829	0.50	678	2,263	0.30
IRFC	3,325	7,355	0.45	100	321	0.31
ITC	25,345	30,704	0.83	-299	357	-0.84
JINDALSTEL	5,098	7,546	0.68	779	897	0.87
JIOFIN	16,453	22,106	0.74	210	504	0.42
JSWENERGY	9,390	15,047	0.62	433	1,512	0.29
JSWSTEEL	13,092	24,380	0.54	475	-157	-3.03
JUBLFOOD	3,750	5,590	0.67	65	173	0.38
KALYANKJIL	3,472	7,031	0.49	259	957	0.27
KAYNES	26,410	65,586	0.40	4,253	20,128	0.21
KEI	1,058	2,442	0.43	98	-109	-0.90
KFINTECH	3,326	5,815	0.57	309	587	0.53
KOTAKBANK	14,766	16,347	0.90	106	-563	-0.19
KPITTECH	2,678	4,733	0.57	191	490	0.39
LAURUSLABS	4,548	7,743	0.59	-46	-303	0.15
LICHSGFIN	6,829	8,336	0.82	509	807	0.63
LICI	5,134	8,611	0.60	-17	645	-0.03
LODHA	4,166	8,559	0.49	289	615	0.47
LT	16,454	23,598	0.70	243	-801	-0.30
LTF	5,019	6,931	0.72	316	372	0.85
LTIM	4,633	5,671	0.82	213	293	0.73
LUPIN	4,821	6,528	0.74	214	370	0.58
M&M	17,083	24,643	0.69	355	-401	-0.89
MANAPPURAM	2,508	4,611	0.54	-102	68	-1.50
MANKIND	2,101	3,605	0.58	227	422	0.54
MARICO	3,100	3,592	0.86	432	-218	-1.98
MARUTI	21,878	24,633	0.89	2,782	-1,974	-1.41
MAXHEALTH	4,965	9,455	0.53	238	1,246	0.19
MAZDOCK	7,165	13,248	0.54	228	1,254	0.18
MCX	13,459	17,145	0.79	-76	-2,459	0.03
MFSL	2,387	3,758	0.64	242	134	1.81
MOTHERSON	5,510	8,329	0.66	121	731	0.17
MPHASIS	3,441	4,102	0.84	369	160	2.31
MUTHOOTFIN	4,252	9,410	0.45	-119	118	-1.01
NATIONALUM	5,309	6,853	0.77	426	80	5.33
NAUKRI	5,581	7,367	0.76	41	38	1.08
NBCC	2,715	5,386	0.50	151	81	1.86
NCC	2,744	6,632	0.41	0	81	0.00
NESTLEIND	4,472	12,114	0.37	135	281	0.48
NHPC	2,761	5,479	0.50	148	386	0.38
NMDC	9,895	12,559	0.79	76	337	0.23
NTPC	11,440	15,920	0.72	-88	-145	0.61
NUVAMA	1,432	4,056	0.35	92	-187	-0.49
NYKAA	2,093	5,608	0.37	201	476	0.42
OBEROIRLTY	3,348	5,416	0.62	461	1,270	0.36
OFSS	4,103	6,009	0.68	33	27	1.22
OIL	1,553	3,224	0.48	61	59	1.03
ONGC	6,539	15,954	0.41	-334	241	-1.39
PAGEIND	3,014	6,197	0.49	-38	43	-0.88
PATANJALI	3,092	6,150	0.50	364	607	0.60
PAYTM	7,668	10,254	0.75	220	-142	-1.55
PERSISTENT	4,802	6,551	0.73	420	375	1.12
PETRONET	7,628	7,210	1.06	-801	-68	11.78
PFC	17,916	28,701	0.62	509	1,553	0.33
PGEL	6,899	11,002	0.63	1,368	2,591	0.53
PHOENIXLTD	1,452	2,590	0.56	13	-3	-4.33
PIDILITIND	1,512	2,183	0.69	-3	29	-0.10
PIIND	2,452	2,969	0.83	-18	-49	0.37
PNB	9,609	17,040	0.56	-38	-372	0.10
PNBHOUSING	3,513	4,392	0.80	480	363	1.32
POLICYBZR	3,082	4,651	0.66	672	589	1.14
POLYCAB	3,412	4,987	0.68	574	499	1.15
POWERGRID	9,186	13,688	0.67	115	-14	-8.21
POWERINDIA	4,585	9,988	0.46	1,451	1,848	0.79
PPLPHARMA	2,329	5,089	0.46	361	747	0.48
PRESTIGE	2,305	2,988	0.77	373	468	0.80
RBLBANK	3,557	6,205	0.57	270	144	1.88
RECLTD	18,999	26,440	0.72	651	1,151	0.57
RELIANCE	46,255	87,204	0.53	1,765	376	4.69
RVNL	5,988	12,470	0.48	304	1,179	0.26
SAIL	5,044	7,890	0.64	-61	343	-0.18
SAMMAANCAP	4,448	8,176	0.54	-22	-63	0.35
SBICARD	4,831	6,826	0.71	281	198	1.42
SBILIFE	4,907	6,552	0.75	385	1,056	0.36
SBIN	40,648	58,885	0.69	2,585	-8,362	-0.31
SHREECEM	975	1,992	0.49	-20	238	-0.08
SHRIRAMFIN	12,196	17,846	0.68	1,233	815	1.51
SIEMENS	4,766	10,234	0.47	-73	1,431	-0.05
SOLARINDS	3,082	6,686	0.46	66	414	0.16
SONACOMS	2,353	4,836	0.49	74	65	1.14
SRF	5,657	11,192	0.51	124	427	0.29
SUNPHARMA	5,012	11,690	0.43	-532	-754	0.70
SUPREMEIND	2,913	5,873	0.50	-170	164	-1.04
SUZLON	9,127	21,290	0.43	446	945	0.47
SYNGENE	1,444	2,421	0.60	111	435	0.26
TATACONSUM	4,347	8,426	0.52	31	-421	-0.07
TATAELXSI	3,932	8,639	0.46	-47	342	-0.14
TATAMOTORS	0	0	0.00	6	-117	-0.05
TATAPOWER	15,962	23,642	0.68	627	1,261	0.50
TATASTEEL	15,398	29,579	0.52	409	427	0.96
TATATECH	4,044	6,346	0.64	426	1,009	0.42
TCS	38,878	44,628	0.87	-799	-491	1.63
TECHM	7,172	7,631	0.94	49	-139	-0.35
TIINDIA	2,565	4,485	0.57	261	567	0.46
TITAGARH	2,063	4,711	0.44	104	10	10.40
TITAN	9,931	16,180	0.61	317	326	0.97
TMPV	38,071	74,993	0.51	1,323	5,712	0.23
TORNTPHARM	1,034	2,097	0.49	80	230	0.35
TORNTPOWER	1,617	2,635	0.61	329	745	0.44
TRENT	18,137	33,575	0.54	106	2,255	0.05
TVSMOTOR	9,197	10,548	0.87	-157	-172	0.91
ULTRACEMCO	9,108	14,882	0.61	-30	902	-0.03
UNIONBANK	5,367	8,798	0.61	116	220	0.53
UNITDSPR	6,077	7,594	0.80	154	184	0.84
UNOMINDA	2,757	4,449	0.62	823	709	1.16
UPL	3,519	5,012	0.70	-124	60	-2.07
VBL	8,882	20,568	0.43	268	821	0.33
VEDL	20,273	30,849	0.66	2,067	1,447	1.43
VOLTAS	6,012	6,726	0.89	322	236	1.36
WIPRO	10,480	12,214	0.86	450	-94	-4.79
YESBANK	5,678	10,588	0.54	-54	422	-0.13
ZYDUSLIFE	2,786	3,411	0.82	41	62	0.66

Understanding PCR & COI Metrics

PCR (Put-Call Ratio)

PCR = Put OI / Call OI

> 1.2

Bullish

More puts than calls, potential support

0.8 - 1.2

Neutral

Balanced market sentiment

< 0.8

Bearish

More calls than puts, potential resistance

COI Strength

COI Strength = (PE COI - CE COI) / (|PE| + |CE|)

> 0.3

Bullish

Strong put buildup dominance

-0.3 to 0.3

Neutral

Balanced intraday activity

< -0.3

Bearish

Strong call buildup dominance

Frequently Asked Questions

PCR is the ratio of total Put Open Interest to Call Open Interest. It's a contrarian indicator of market sentiment:

High PCR (>1.2): More traders are holding puts, expecting a decline. However, this often acts as support (bullish) as market makers hedge by buying the underlying.
Low PCR (<0.8): More traders are holding calls, expecting a rise. This often acts as resistance (bearish) as market makers hedge by selling the underlying.
Neutral PCR (0.8-1.2): Balanced sentiment with no strong directional bias.

Remember: PCR is contrarian - extreme readings often signal reversals rather than continuation.

COI PCR (Change in OI PCR) measures the ratio of intraday Put OI change to Call OI change, making it more responsive than total OI PCR.

Key Differences:

Regular PCR: Uses total accumulated Open Interest. Shows overall market positioning but changes slowly.
COI PCR: Uses only today's OI changes. Captures fresh positioning and provides timely intraday signals.

Use Case: COI PCR helps identify intraday sentiment shifts before they reflect in total PCR, making it valuable for day traders and short-term positions.

COI Strength = (PE COI - CE COI) / (|PE COI| + |CE COI|)

This normalized indicator measures the directional bias of intraday Open Interest changes on a scale from -1 to +1:

> 0.3 (Bullish): Put side dominance - fresh put writing or buying suggests bullish positioning.
-0.3 to 0.3 (Neutral): Balanced activity on both sides - no clear directional conviction.
< -0.3 (Bearish): Call side dominance - fresh call writing or buying suggests bearish positioning.

Advantages over PCR:

Normalized scale (-1 to +1) makes comparison across symbols easier
Not affected by extreme ratios when one side is very small
Clearly shows which side has stronger intraday momentum

PCR data updates based on the selected interval:

1 Minute Interval: Updates every minute during market hours, providing real-time intraday tracking.
1 Day Interval: Shows end-of-day PCR values for historical analysis and trend identification.

Note: OI data comes from the exchange and may have a slight delay. Premium users get access to faster refresh rates and more granular intervals.

Negative PCR occurs when Call OI Change is negative (unwinding) while Put OI Change is also negative, or vice versa.

Common Scenarios:

PE > 0, CE < 0: Puts building, Calls unwinding → Strong bullish signal
PE < 0, CE > 0: Puts unwinding, Calls building → Strong bearish signal
Both negative: Both sides unwinding → Low conviction, neutral to ranging market

Tip: When PCR becomes negative or very large, use COI Strength instead - it handles these edge cases better and provides clearer directional signals.

Best Practices for Combining PCR with Price:

Divergence Trading: If price is falling but COI PCR shows put buildup (>1.2), it may signal a bounce. If price is rising but COI PCR shows call buildup (<0.8), it may signal resistance.
Confirmation: Use PCR to confirm price trends. Rising prices with increasing calls or falling prices with increasing puts suggests trend continuation.
Extremes: Very high COI Strength (>0.6 or <-0.6) combined with price at support/resistance can signal strong reversals.
Intraday Pivots: Watch for sudden COI Strength shifts (e.g., from +0.5 to -0.3) as they often precede intraday trend changes.

Remember: PCR is a sentiment indicator, not a timing tool. Always combine with technical analysis, support/resistance levels, and risk management.

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