Merck Sees $1.57 Million Bullish Call Activity as Stock Hovers Near 52-Week High

By TrendSpider Editor

A single unusual options contract on Merck & Company, Inc. (MRK) caught the attention of traders Thursday, with a $1,567,500 call premium hitting the tape as the stock trades at $152.35, already in-the-money relative to the contract's $145 strike. MRK shares are up 1.64% on the session, placing them

Merck Sees $1.57 Million Bullish Call Activity as Stock Hovers Near 52-Week High

A single unusual options contract on Merck & Company, Inc. (MRK) caught the attention of traders Thursday, with a $1,567,500 call premium hitting the tape as the stock trades at $152.35, already in-the-money relative to the contract's $145 strike. MRK shares are up 1.64% on the session, placing them in the upper portion of the 52-week range of $82.04 to $156.92. The positioning suggests at least one large participant is making a directional bet that Merck continues to hold or extend its gains through mid-November.

Key Drivers of the MRK Stock Move

• Main Catalyst: A single call contract with a $145 strike expiring November 20, 2026 printed with a size of 1,500 contracts, generating $1,567,500 in total premium. The contract is currently in-the-money with MRK trading at $152.35, and open interest utilization sits at 23%.
• Bull Case: The contract is already ITM by more than $7 relative to the $145 strike, meaning the buyer has immediate intrinsic value and needs only for MRK to hold above $145 through expiration on November 20 to see the position remain profitable at expiration. The stock's 1.64% gain today adds further tailwind.
• Bear Case: With MRK trading at $152.35 and just $4.57 below its 52-week high of $156.92, the stock may face resistance at those prior highs. Any reversal toward the $145 strike in the next four weeks would erode the in-the-money buffer on this position, and a broader market pullback could challenge the thesis before the November 20 expiry.

The forward setup for MRK is constructive given the proximity to 52-week highs and a solidly in-the-money call positioning that implies a well-capitalized actor sees limited downside risk over the near term. The stock's dramatic recovery from its 52-week low of $82.04 reflects renewed confidence in Merck's pipeline and commercial portfolio. That said, the options positioning with a 23% open interest reading on this contract suggests this is a relatively concentrated, high-conviction trade rather than a broad wave of institutional accumulation, which means the setup should be monitored closely as expiration approaches in November.

MRK Unusual Options Activity

One unusual options contract was flagged on MRK today:

• Type: Call | Strike: $145 | Expiry: November 20, 2026 | Size: 1,500 contracts | Open Interest Utilization: 23% | Status: In-the-Money

Total premium associated with this contract is $1,567,500. With zero put contracts flagged alongside this single call, the unusual options flow today is entirely bullish in character.

MRK Seasonality

Late October through mid-November has historically been an active period for pharmaceutical names as companies approach year-end clinical readout schedules and budget season, often creating directional momentum in either direction. A November 20 expiry captures that window and suggests the options buyer may be anticipating a catalyst or continued price strength into that timeframe.

MRK Relative Performance

MRK's 1.64% gain today positions it as an outperformer on the session relative to the broader market. The stock at $152.35 is trading within roughly 3% of its 52-week high of $156.92, reflecting a strong recovery from the $82.04 low set earlier in the 52-week period, a move of more than 85% off those lows. This kind of technical positioning near multi-year highs, combined with a large ITM call print, places Merck among the more technically extended large-cap pharma names heading into the final weeks of October 2026.