MRK $121.18 pinning levels 2026-07-14 · 11:59 ET

$MRK

Merck & Co Inc · Pharmaceuticals · $306.3B

▼ -2.85   (-2.30%)
Snapshot $121.18 · · 2026-07-14 · 11:59 ET

The Levels

Put Wall $105 active wall
Gamma Flip $113 +7.1% above flip
Call Wall $130 held 10 sessions
spot $121.18

Regime pinning · moves get faded back to the walls.

Each wall is the strike carrying the heaviest open interest within 15% of price, call above as resistance, put below as support, pooled across all listed expirations. It is a structural positioning level, not a single expiry pin. Max pain is tracked separately.

The Read

$MRK is in long gamma at heat 38, which means dealer hedging damps price swings. The $125 call and $110 put walls are both untested yesterday; however, given their hold rates of 71% and 86%, respectively, these levels dealers typically defend. Spot sits 8.1% above the $110.29 gamma flip, so any move down faces a strong test at the $110 put.

Where the market is positioned


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Free. No login. Real dealer positioning on $MRK, scored over a year of outcomes.

IV percentile · 1y 90 · premium rich Earnings · 21d out ±5.3% implied · +1.8pt vs history Put / call · OI · all expiries 0.76 · calls-heavy

Plays at the Walls

Covered Call

$128 · Aug 14 · 31Δ

$2.22 premium  ·  22%/yr annualized

Cash-Secured Put

$116 · Aug 14 · 30Δ

$2.40 premium  ·  25%/yr annualized

Not investment advice · Informational only


How our calls on $MRK have played out

Over the last 21 sessions · n=24

24 Walls Called
10 Held 100% 4 pinned · 6 rejected
0 Broke 0%
14 Untested

$130 call wall

held 6 sessions running


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Scored Levels


Implied vs Measured


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