SNDK / Sandisk Corporation - Put/Call Ratio, Options Sentiment, Unusual Options Activity

Put/Call Ratios - Forward Looking and Historical

By looking at the put/call ratios of specific expirations, we can deduce what the options markets think of the short, medium, and long-term outlook of the company.

Expiry	DTX	Open Put Interest	Open Call Interest	Put/Call Ratio
2025-09-19	10	12,698
2025-10-17	38	2,281
2025-12-19	101	5,202
2026-03-20	192	1,202

Date	Put OI	Put OI (OTM)	Call OI	Call OI (OTM)	Put/Call Ratio	Put/Call Ratio (OTM)
2025-09-08	21,383	21,172
2025-09-05	15,539	15,231
2025-09-04	11,853	11,829
2025-09-03	11,623	9,744
2025-09-02	11,551	9,716
2025-08-29	11,862	9,758
2025-08-28	11,860	9,771
2025-08-27	11,489	7,170
2025-08-26	11,468	7,168
2025-08-25	11,478	7,178
2025-08-22	11,498	7,199
2025-08-21	10,959	6,955
2025-08-20	10,891	6,886
2025-08-19	10,557	6,590
2025-08-18	10,564	6,589
2025-08-15	16,524	9,546
2025-08-14	12,032	6,997
2025-08-13	11,920	6,955
2025-08-12	11,679	7,052
2025-08-11	11,819	2,177

Unusual Options Activity - Trade Volume

The Put/Call Ratio shows the total number of disclosed open put option positions divided by the number of open call option options. Since puts are generally a bearish bet and calls are a bullish bet, put/call ratios greater than 1 indicate a bearish sentiment, and ratios less than one indicate a bullish sentiment.

Unusual options activity (UOA) is generally considered a strong signal for a directional price movement. One metric of unusual options activity is the total volume of put or call options divided by the open interest in the same option type. If the total volume of call or put options exceeds the current open interest, then that is considered unusual and indicates a strong directional signal. In the table below, any date on which the volume of an option exceeds the current open interest is highlighted in green (for call options) or red (for put options).

For example, if, on any trading day, the call volume exceeds the current call open interest, then the Call Volume/Call OI ratio will be greater than one and that cell in the able will be highlighted in green. This would indicate a significant purchase of call options, which is a bullish signal. Likewise, if the opposite is true - the put volume exceeds the put open interest, then the table cell would be highlighted in red and represent a strong bearish signal.

Update Frequency: Daily

Date	Put Volume	Put OI	Put Volume /Put OI	Call Volume	Call OI	Call Volume /Call OI
2025-09-08	2,011	21,383		4,643	45,593
2025-09-05	9,097	15,539		17,346	40,656
2025-09-04	4,908	11,853		13,699	36,974
2025-09-03	345	11,623		5,565	34,561
2025-09-02	244	11,551		2,210	33,317
2025-08-29	665	11,862		4,575	31,597
2025-08-28	191	11,860		2,505	30,974
2025-08-27	530	11,489		4,193	28,478
2025-08-26	59	11,468		4,659	25,039
2025-08-25	95	11,478		466	24,927
2025-08-22	227	11,498		1,026	24,608
2025-08-21	746	10,959		1,181	24,282
2025-08-20	161	10,891		1,374	24,124
2025-08-19	491	10,557		1,126	23,836
2025-08-18	250	10,564		1,641	23,943
2025-08-15	7,551	16,524		8,363	29,736
2025-08-14	8,535	12,032		10,655	28,108
2025-08-13	280	11,920		1,637	27,664
2025-08-12	1,129	11,679		4,687	26,397
2025-08-11	291	11,819		1,159	25,976
2025-08-08	119	11,785		9,380	20,912
2025-08-07	33	11,784		539	20,632
2025-08-06	2	11,783		114	20,607
2025-08-05	154	11,824		301	20,541
2025-08-04	35	11,795		569	20,357

Option Premium Bought/Sold - Total Market

Update Frequency: Daily

Option Greeks - Delta, Gamma, Theta

Update Frequency: Daily

Option Trading Volume - Total Market

Update Frequency: Daily

Option Trading Volume - Exchange

Update Frequency: Daily