MRK Options Flow Today — Unusual Options Activity | AlgoX Flow
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MRK Options Flow

Live unusual options activity for MRK — call vs put volume, the call/put ratio and the most active contract.
Last price
$147.05
-0.07%
Flow lean
Bullish
64% calls
Call / Put
1.8×
by volume
Top contract IV
$95 CALL
Day range
$145.32–$147.65
intraday
Volume
11.1M
shares today

MRK price — last 40 sessions

Range $127.77–$156.45 · +12.8% over the period · daily closes via Polygon

Today's MRK options read

As of the latest session, MRK is trading at $147.05 (-0.07% on the day). Today's options tape is leaning bullish — call volume is 64% of total contracts (12K calls vs 6K puts, a 1.8× call/put ratio). The most active contract is the $95 CALL expiring 2026-09-18 on 4K contracts.

The MRK options tape is tilted bullish right now — calls are 64% of volume and the call/put ratio sits at 1.8×, so traders are paying up for upside. That signal is strongest when the biggest contracts are being bought at the ask in a sweep (aggressive, urgent) rather than sold on the bid.

New to reading flow? Volume vs open interest → · What is implied volatility → · Sweeps vs blocks →

How to read MRK flow

Options flow shows where real money is positioning before a move. A bullish lean (heavy call volume, high call/put ratio, sweeps bought at the ask) means traders are paying up for upside; a bearish lean is the reverse. The largest, most-aggressive prints — sweeps filled across exchanges at the ask — carry the most signal. On the AlgoX conviction desk, MRK is scored live against net premium, relative volume, momentum and the biggest sweep of the day.

See the dealer-positioning side too: MRK gamma exposure — flip, walls & max pain →

Share MRK's flow

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MRK options flow — FAQ

Is MRK options flow bullish or bearish today?

Based on the latest session, MRK flow is leaning bullish — calls are 64% of total options volume, a 1.8× call/put ratio. Flow lean is a positioning signal, not a guarantee of direction.

What is the MRK call/put ratio?

MRK's call/put ratio is currently 1.8× — 12K call contracts versus 6K put contracts. Above 1 means more call than put volume (often bullish); below 1 means puts dominate.

What's the most active MRK options contract?

The most-active MRK contract in the latest snapshot is the $95 CALL expiring 2026-09-18, trading 4K contracts.

What counts as unusual options activity in MRK?

Unusual options activity in MRK means volume well above normal — especially large blocks or sweeps bought at the ask. Those aggressive, urgent prints carry the most signal, and they're exactly what the AlgoX conviction desk flags in real time.

See MRK flow score live

The full conviction board ranks MRK and the whole tape in real time — with the exact contract the smart money is buying. Top flow is free to watch in the Discord.

Data via Polygon · refreshes through the session · educational, not financial advice · options carry substantial risk.