What is MRK's IV rank?

At the close on Sep 28, 2026, MRK's IV rank was 87 with 30-day implied volatility of 33.8%. IV sits 87% of the way from its one-year low to its one-year high. Its IV percentile was 91: IV is higher than 91% of the past year's readings.

What is the expected move for MRK?

Based on the close on Sep 28, 2026, options expiring Oct 30, 2026 priced a one standard deviation move of $15.50 (10.4%), a range of $133.19 to $164.19. Roughly two times in three, the stock would finish inside that range if the options are priced fairly.

Which option screens have trades on MRK?

At the close on Sep 28, 2026, these OptionClaws preset screens had passing trades on MRK: Cash-Secured Put Entries on Mega Caps (22), Long Call Butterflies for Pinning (3). Open a screen in the app to see the individual trades, refreshed intraday.

Is MRK option volume above average?

On Sep 28, 2026, MRK option volume was 0.5x its average, much quieter than usual.

MRK options: IV rank, expected move and trade screens

Merck & Co., Inc. · Healthcare

As of the close on Sep 28, 2026. In the app, data is refreshed intraday.

MRK closed at $148.69 on Sep 28, 2026 with 30-day implied volatility of 33.8%. That is near the top of its one-year range (IV rank 87), so option premiums on MRK are expensive compared with its own recent history. Measured by IV percentile, IV is higher than 91% of the past year's readings. Options expiring Oct 30 (32 days out) price a one standard deviation move of about $15.50, or 10.4%.

The price is above both its 50-day (+5.6%) and 200-day (+21.9%) moving averages. It is 5.0% below its 52-week high and 89.3% above its 52-week low. The 14-day RSI of 56.5 is between 30 and 70, neither overbought nor oversold. The 14-day average true range is $3.55, about 2.4% of the price, a measure of a typical day's range.

Option volume at the close (10K contracts) was 0.5x its average, much quieter than usual. A beta of 0.19 means MRK has tended to move about 0.2 times as much as the broad market. 2 of our preset screens found trades on MRK at the close, led by Cash-Secured Put Entries on Mega Caps with 22 trades.

MRK stats at the close

Price: $148.69; Market cap $367B
Implied volatility: 33.8%; 30-day, at the money
IV rank: 87; IV sits 87% of the way from its one-year low to its one-year high.
IV percentile: 91; IV is higher than 91% of the past year's readings.
ATR (14-day): $3.55; 2.4% of the price on a typical day
RSI (14-day): 56.5; Between 30 and 70, neutral
52-week range: -5.0% from high; +89.3% from the 52-week low
Moving averages: +5.6% vs 50-day; +21.9% vs the 200-day
Beta: 0.19; Sensitivity to the broad market
Option volume: 0.5x avg; 10K contracts vs 21.8K average

MRK expected move by expiration

Expected move = price x at-the-money IV x the square root of (days to expiration / 365), a one standard deviation range. The straddle is the at-the-money call plus put, the market's own price for a move. Compare expected moves across stocks.

Expiration	IV	Expected move	1 SD range	Straddle
Oct 2, 20264 days	32.5%	±$5.06 (3.4%)	$143.63 to $153.75	$4.05
Oct 30, 202632 days	35.2%	±$15.50 (10.4%)	$133.19 to $164.19	$12.35
Nov 20, 202653 days	34.0%	±$19.26 (13.0%)	$129.43 to $167.95	$15.38
Dec 18, 202681 days	33.2%	±$23.22 (15.6%)	$125.47 to $171.91	$18.50

Each expiration has its own implied volatility, and short-dated IV reacts more to near-term events, so the nearest expiration can differ a lot from the 30-day figure.

Trades that pass our screens as of the close

Counts and ranges for MRK from our preset scans at the last close. Open a preset in the app to see each trade with its strikes, prices, and risk, refreshed intraday. Income strategies show annualized return; the rest show return on risk.

Cash-Secured Put Entries on Mega Caps

Cash-Secured Put

22 trades pass on MRK

Annualized return: 4.5% to 25.1%
Probability of profit: 72.0% to 96.1%

Cash-secured put screener

Long Call Butterflies for Pinning

Call Butterfly

3 trades pass on MRK

Return on risk: 147.5% to 247.8%
Probability of profit: 53.7% to 60.1%

Butterfly spread screener

MRK options FAQ

What is MRK's IV rank?: At the close on Sep 28, 2026, MRK's IV rank was 87 with 30-day implied volatility of 33.8%. IV sits 87% of the way from its one-year low to its one-year high. Its IV percentile was 91: IV is higher than 91% of the past year's readings.
What is the expected move for MRK?: Based on the close on Sep 28, 2026, options expiring Oct 30, 2026 priced a one standard deviation move of $15.50 (10.4%), a range of $133.19 to $164.19. Roughly two times in three, the stock would finish inside that range if the options are priced fairly.
Which option screens have trades on MRK?: At the close on Sep 28, 2026, these OptionClaws preset screens had passing trades on MRK: Cash-Secured Put Entries on Mega Caps (22), Long Call Butterflies for Pinning (3). Open a screen in the app to see the individual trades, refreshed intraday.
Is MRK option volume above average?: On Sep 28, 2026, MRK option volume was 0.5x its average, much quieter than usual.

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