MRK Options Chain by Expiration – Open Interest & Put/Call Ratio

Explore the MRK options chain aggregated by expiration date, with call and put open interest, total OI and put/call ratios. Use this overview to spot where options positioning is most concentrated and which expirations carry bullish, bearish or neutral sentiment for MRK.

Options Analysis Short-Term Forecast Short Interest Report

Market Sentiment from MRK Options by Expiration Date

The table below aggregates MRK options data by expiration date, including call volume, put volume, total open interest and the put/call ratio. Each row is assigned a sentiment label and numerical sentiment score, highlighting expirations where positioning is extremely bullish, defensive or balanced. Click on an expiration date to drill down into the detailed options chain for that maturity.

Expiration Date	Call OI	Put OI	Total Open Interest	Put/Call Ratio
2026-02-06	17514	10766	28280	0.615
2026-02-13	20711	5692	26403	0.275
2026-02-20	51033	24803	75836	0.486
2026-02-27	3151	1788	4939	0.567
2026-03-06	1705	726	2431	0.426
2026-03-13	713	282	995	0.396
2026-03-20	55879	48291	104170	0.864
2026-03-27	340	10	350	0.029
2026-04-17	58630	18886	77516	0.322
2026-06-18	37519	42699	80218	1.138
2026-07-17	5501	8816	14317	1.603
2026-09-18	24706	19067	43773	0.772
2026-12-18	12678	10055	22733	0.793
2027-01-15	39044	29860	68904	0.765
2027-06-17	19923	5239	25162	0.263
2027-12-17	7563	10220	17783	1.351
2028-01-21	7967	2794	10761	0.351
How the Options Sentiment Score Is Calculated This sentiment framework evaluates market bias for MRK based on aggregated options data by expiration date. The key metrics are: Put/Call Ratio (PCR): Compares put and call activity. A higher PCR usually indicates more defensive or bearish positioning, while a lower PCR suggests bullish call demand. Open Interest (OI): Represents the number of outstanding option contracts. Higher open interest reflects strong market attention, hedging activity or speculative positioning around MRK. Unusual activity ⚠️: Expirations with extreme PCR or unusually high OI are flagged with a warning icon, signaling concentrated bets, hedging pressure or potential event-driven risk. The sentiment score combines PCR and OI into a 0–100 scale, then classifies each expiration into intuitive labels such as Strong Bullish, Moderate Bullish, Neutral, Moderate Bearish, Strong Bearish. Higher scores reflect more aggressive bullish positioning in MRK options, while lower scores highlight more defensive or bearish structures.