Options market record

MRK options flowcalls and puts bought each day.

On Oct 5, 2026, traders bought 11.6K MRK call contracts ($3.4M) and 4.24K put contracts ($1.4M). Calls were 2.3× and puts were 1.7× their respective 20-day medians. The underlying closed at $139.61 and 30-day implied volatility was 37.1%. On the call-buy top 10 on 12 of 473 trading days since Nov 11, 2024.

Each point is one trading day since Nov 11, 2024. Latest rankings

Daily contracts bought

Call contracts: min 1.65K, max 457.03K, latest 11.6K. Put contracts: min 1.18K, max 123.18K, latest 4.24K.

30-day implied volatility

30-day IV: min 21.1%, max 55.5%, latest 37.1%.

Days in a top-10 list

Ranked by contracts bought today compared with the stock's own median over the previous 20 trading days.

Date	Call-buy rank	Put-buy rank	Call vs normal	Put vs normal
Sep 14, 2026	9	—	9.7×	0.8×
Aug 19, 2026	9	3	10.2×	8.3×
Jun 12, 2026	4	—	18.9×	0.6×
Mar 13, 2026	1	—	90.4×	0.8×
Dec 12, 2025	3	—	26.0×	0.8×
Dec 8, 2025	10	—	5.4×	0.5×
Nov 24, 2025	6	—	6.3×	1.8×
Nov 12, 2025	10	—	4.6×	1.6×
Nov 11, 2025	6	—	7.7×	1.1×
Sep 16, 2025	—	9	1.6×	3.6×
Jun 18, 2025	—	8	1.1×	5.8×
Apr 25, 2025	8	—	6.6×	0.9×
Mar 25, 2025	—	1	2.0×	10.7×
Feb 13, 2025	—	4	1.3×	12.5×
Feb 6, 2025	—	10	1.1×	5.3×
Feb 4, 2025	5	—	7.7×	4.6×
Feb 3, 2025	9	—	5.4×	1.8×
Jan 30, 2025	—	6	0.9×	7.6×
Jan 6, 2025	—	6	1.2×	4.5×
Dec 26, 2024	—	5	0.9×	8.3×

All 21 days

Date	Call-buy rank	Put-buy rank	Call vs normal	Put vs normal
Dec 23, 2024	—	6	0.8×	4.0×

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