MCK options flow
From the October 21, 2026 session tape · published after the close
MCK options traded $1.0M in premium across 30 prints on October 21, 2026: 66% in calls and 34% in puts, with 0% in contracts expiring that day. That was 89% of its average session over the prior 19.
MCK largest options trades, October 21, 2026
| Time | Contract | Size | Price | Premium |
|---|---|---|---|---|
| 10:32 | 1020P Nov 20 | 31 | $41.70 | $129K |
| 16:00 | 1050C Nov 20 | 34 | $28.30 | $96K |
| 11:14 | 1030P Nov 20 | 15 | $46.00 | $69K |
| 11:52 | 1040C Mar 19 | 8 | $74.00 | $59K |
| 13:01 | 940C Dec 18 | 5 | $95.17 | $48K |
| 10:14 | 800C Jan 15 | 2 | $235.65 | $47K |
| 11:52 | 1000C Mar 19 | 5 | $94.00 | $47K |
| 13:28 | 800C Jan 15 | 2 | $220.30 | $44K |
| 11:00 | 1030C Nov 20 | 12 | $36.70 | $44K |
| 16:00 | 1200P Nov 20 | 2 | $186.68 | $37K |
| 11:14 | 1020C Nov 20 | 9 | $40.40 | $36K |
| 11:14 | 1020P Nov 20 | 8 | $40.30 | $32K |
| 11:27 | 900C Mar 19 | 2 | $161.00 | $32K |
| 12:48 | 900C Mar 19 | 2 | $155.00 | $31K |
| 13:26 | 1160P Nov 20 | 2 | $153.36 | $31K |
The largest single MCK print was a 1020 put expiring Nov 20 for $129K at 10:32 ET.
The busiest strikes by premium were 1020 puts ($186K), 1050 calls ($96K), 1020 calls ($93K), 800 calls ($91K).
Last 20 sessions of MCK premium, calls vs puts: Oct 15 $3.2M (61% calls) · Oct 16 $4.4M (96% calls) · Oct 19 $1.1M (87% calls) · Oct 20 $952K (97% calls) · Oct 21 $1.0M (66% calls).
A large print is a trade, not a verdict: it can be a hedge, a close, or one leg of a spread. Read it next to where dealers are positioned, on the other MCK pages.
These are the October 20, 2026 closing numbers. Members see MCK's map move live all session.
Common questions
$1.0M in premium across 30 prints, 66% calls. The largest print was a 1020 put for $129K.
66% of premium was in calls. Premium alone does not show direction: buyers and sellers, hedges and spreads all print the same way.
No. This page shows the last completed session, published after the close. Members see the flow as it prints.
Compare: options flow on other tickers
Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.