Detailed MRK options chain for 2026-12-18 – real-time call and put contracts with last price, bid/ask, volume, open interest, implied volatility, and in-the-money status.
Tip: Use this page together with the price chart, short-term prediction, and multi-expiry options overview to build a complete view of positioning and risk for MRK.
This page focuses on a single options expiration date for MRK – 2026-12-18 – and lists every available call and put contract in a clean chain view. Each row shows the contract symbol, last trade, bid/ask quotes, daily change, percentage change, trading volume, open interest, implied volatility (IV), and whether the option is currently in-the-money (ITM).
Traders often use a specific expiry’s options chain to identify key strike levels, unusual activity, and risk hedging behavior. High open interest around certain strikes or sudden spikes in volume can reveal where large traders and market makers are concentrating their positions for MRK into 2026-12-18.
This MRK 2026-12-18 options chain provides a complete strike-by-strike breakdown of pricing, liquidity and volatility. By comparing changes in volume, open interest distribution and IV across calls and puts, traders can understand where the market is positioning ahead of this specific expiration date.
The table below shows all call options on MRK expiring on 2026-12-18. You can quickly compare strikes, pricing, liquidity (volume and open interest), and implied volatility to spot popular strike zones and potential directional bets.
| Contract | Strike | Last | Bid | Ask | Volume | Open Int. | Implied Vol | ITM |
|---|---|---|---|---|---|---|---|---|
| MRK 261218C00110000 | 110.00 | 9.33 | 8.35 | 9.3 | 4 | 1385 | 27.51% | |
| MRK 261218C00130000 | 130.00 | 3.75 | 2.66 | 4.05 | 84 | 882 | 27.89% | |
| MRK 261218C00125000 | 125.00 | 4.9 | 4.3 | 5.1 | 1 | 817 | 28.03% | |
| MRK 261218C00155000 | 155.00 | 1.04 | 0 | 2 | 6 | 782 | 31.43% | |
| MRK 261218C00135000 | 135.00 | 2.86 | 2.83 | 3.25 | 2 | 759 | 27.95% | |
| MRK 261218C00150000 | 150.00 | 1.1 | 0.95 | 1.68 | 1 | 744 | 28.24% | |
| MRK 261218C00140000 | 140.00 | 2.29 | 1.9 | 2.52 | 6 | 691 | 27.71% | |
| MRK 261218C00105000 | 105.00 | 11.8 | 11.35 | 11.85 | 7 | 647 | 28.72% | |
| MRK 261218C00115000 | 115.00 | 7.55 | 7.2 | 7.9 | 7 | 584 | 28.33% | |
| MRK 261218C00100000 | 100.00 | 14.35 | 14.05 | 14.5 | 8 | 554 | 29.41% | ITM |
| MRK 261218C00175000 | 175.00 | 0.45 | 0.34 | 0.61 | 1 | 526 | 29.20% | |
| MRK 261218C00120000 | 120.00 | 5.73 | 5.6 | 6.45 | 4 | 500 | 28.38% | |
| MRK 261218C00095000 | 95.00 | 14.7 | 16.85 | 18.6 | 17 | 492 | 33.16% | ITM |
| MRK 261218C00160000 | 160.00 | 0.85 | 0.73 | 1.18 | 3 | 420 | 29.02% | |
| MRK 261218C00085000 | 85.00 | 22.95 | 23.35 | 24.45 | 1 | 361 | 32.08% | ITM |
| MRK 261218C00090000 | 90.00 | 19.51 | 20.4 | 21.8 | 1 | 309 | 33.96% | ITM |
| MRK 261218C00075000 | 75.00 | 30.05 | 30.8 | 33.6 | 1 | 284 | 39.37% | ITM |
| MRK 261218C00190000 | 190.00 | 0.23 | 0 | 1.1 | 3 | 224 | 36.66% | |
| MRK 261218C00080000 | 80.00 | 27.75 | 27.65 | 29.7 | 3 | 206 | 38.26% | ITM |
| MRK 261218C00070000 | 70.00 | 32.48 | 35.35 | 38 | 1 | 178 | 42.04% | ITM |
| MRK 261218C00060000 | 60.00 | 43.14 | 44.6 | 47.25 | 1 | 142 | 49.07% | ITM |
| MRK 261218C00195000 | 195.00 | 0.22 | 0 | 1.05 | 3 | 76 | 37.48% | |
| MRK 261218C00165000 | 165.00 | 0.31 | 0 | 1.81 | 3 | 60 | 33.86% | |
| MRK 261218C00170000 | 170.00 | 0.24 | 0 | 2.68 | 3 | 37 | 39.29% | |
| MRK 261218C00180000 | 180.00 | 1.27 | 0.11 | 2.48 | 1 | 30 | 41.43% | |
| MRK 261218C00065000 | 65.00 | 39.55 | 40 | 42.55 | 1 | 23 | 45.18% | ITM |
| MRK 261218C00145000 | 145.00 | 1.25 | 0.92 | 2.61 | 1 | 16 | 30.13% | |
| MRK 261218C00050000 | 50.00 | 50.65 | 53 | 57.5 | 15 | 12 | 63.60% | ITM |
| MRK 261218C00185000 | 185.00 | 1.21 | 0.08 | 2.42 | 1 | 8 | 42.56% | |
| MRK 261218C00055000 | 55.00 | 49.6 | 48 | 52.5 | 2 | 2 | 56.80% | ITM |
| MRK 261218C00040000 | 40.00 | 45.65 | 63 | 67.5 | 2 | 0 | 51.76% | ITM |
The table below lists all put options on MRK expiring on 2026-12-18. Use it to track downside protection demand, hedge activity, and deep out-of-the-money puts that may indicate tail-risk hedging or speculation.
| Contract | Strike | Last | Bid | Ask | Volume | Open Int. | Implied Vol | ITM |
|---|---|---|---|---|---|---|---|---|
| MRK 261218P00060000 | 60.00 | 0.97 | 0.11 | 1 | 5 | 2405 | 38.82% | |
| MRK 261218P00075000 | 75.00 | 2.22 | 2 | 2.83 | 5 | 1312 | 35.45% | |
| MRK 261218P00070000 | 70.00 | 1.56 | 1.41 | 1.74 | 5 | 972 | 34.69% | |
| MRK 261218P00080000 | 80.00 | 3.15 | 1.84 | 3.75 | 10 | 893 | 34.24% | |
| MRK 261218P00055000 | 55.00 | 0.64 | 0 | 2.03 | 2 | 588 | 52.59% | |
| MRK 261218P00085000 | 85.00 | 3.9 | 3.7 | 4.1 | 10 | 492 | 30.45% | |
| MRK 261218P00090000 | 90.00 | 5.25 | 4.75 | 5.75 | 1 | 452 | 30.48% | |
| MRK 261218P00065000 | 65.00 | 1.06 | 0.91 | 1.3 | 12 | 313 | 36.51% | |
| MRK 261218P00095000 | 95.00 | 7.65 | 6.45 | 8.1 | 1 | 236 | 31.47% | |
| MRK 261218P00110000 | 110.00 | 15.3 | 12.8 | 13.9 | 2 | 195 | 26.23% | ITM |
| MRK 261218P00050000 | 50.00 | 0.58 | 0 | 2.46 | 4 | 179 | 51.81% | |
| MRK 261218P00105000 | 105.00 | 10.7 | 9.55 | 11.25 | 2 | 167 | 26.95% | ITM |
| MRK 261218P00100000 | 100.00 | 8.8 | 8.4 | 8.8 | 11 | 157 | 27.32% | |
| MRK 261218P00040000 | 40.00 | 0.17 | 0 | 0.35 | 1 | 117 | 50.93% | |
| MRK 261218P00135000 | 135.00 | 58.33 | 58.35 | 60.15 | 2 | 110 | 93.01% | ITM |
| MRK 261218P00045000 | 45.00 | 0.29 | 0 | 2.34 | 1 | 78 | 57.50% | |
| MRK 261218P00115000 | 115.00 | 17.5 | 15.2 | 17.95 | 4 | 53 | 28.14% | ITM |
| MRK 261218P00120000 | 120.00 | 22.5 | 18.5 | 20.4 | 1 | 38 | 25.34% | ITM |
| MRK 261218P00140000 | 140.00 | 31.85 | 37.85 | 38.9 | 1 | 9 | 31.96% | ITM |
| MRK 261218P00125000 | 125.00 | 37.2 | 38.5 | 41.5 | 2 | 1 | 64.47% | ITM |
| MRK 261218P00170000 | 170.00 | 47 | 42.55 | 46.5 | 1 | 0 | 0.00% | ITM |
| MRK 261218P00130000 | 130.00 | 46.1 | 51.2 | 51.8 | 1 | 0 | 83.36% | ITM |
| MRK 261218P00145000 | 145.00 | 45.93 | 43.05 | 46.65 | 0 | 0 | 42.41% | ITM |
| MRK 261218P00160000 | 160.00 | 34.7 | 44.55 | 49 | 1 | 0 | 0.00% | ITM |
This page displays the full MRK options chain for contracts expiring on 2026-12-18. Both call and put tables include contract symbols, last trade price, bid/ask quotes, daily change and percentage change, trading volume, open interest, implied volatility, and an in-the-money (ITM) flag. It is designed to give you a complete snapshot of how the market is pricing risk and direction for this specific expiry.
Around earnings, macro data releases, or company-specific news, traders often focus on a single expiration such as 2026-12-18. By monitoring changes in implied volatility, volume, and open interest for each strike, you can see where traders are concentrating their bets and hedges. Large shifts in activity on out-of-the-money calls or puts can be early signs of expected volatility or directional moves in MRK.
The ITM column highlights whether a contract is currently in-the-money for MRK: call options are ITM when their strike is below the current stock price, while put options are ITM when their strike is above the current stock price. ITM contracts have intrinsic value, while out-of-the-money options are purely time and volatility value. This distinction helps you quickly identify which strikes are already “in the money” for this expiry.
Implied volatility reflects how much movement the market expects for MRK between now and 2026-12-18. Higher IV typically means options are more expensive and the market is pricing in larger potential moves. You can compare IV across strikes and between calls and puts to identify skew – for example, expensive downside puts may indicate demand for crash protection, while rich upside calls can signal speculative interest.
No. This 2026-12-18 options chain gives a granular view for one maturity only. For a complete picture of positioning in MRK, you should also review the multi-expiry options overview where you can compare put/call ratios, total open interest and volume across different expiration dates. Combining both perspectives helps you understand whether traders are focused on very short-term moves or longer-dated themes.
The MRK options data on this page is refreshed regularly during market hours to reflect the latest trades, mid-market quotes, and open interest updates. Intraday changes in volume, open interest, and implied volatility can provide important signals about how sentiment and risk pricing are evolving as 2026-12-18 approaches.
