ILMN options flow
From the October 21, 2026 session tape · published after the close
ILMN options traded $3.8M in premium across 70 prints on October 21, 2026: 78% in calls and 22% in puts, with 0% in contracts expiring that day. That was 208% of its average session over the prior 19.
ILMN largest options trades, October 21, 2026
| Time | Contract | Size | Price | Premium |
|---|---|---|---|---|
| 12:09 | 290C Nov 20 | 778 | $19.45 | $1.5M |
| 12:09 | 240P Nov 20 | 788 | $5.91 | $466K |
| 12:22 | 290C Jun 17 | 59 | $54.55 | $322K |
| 15:02 | 260C Nov 20 | 55 | $36.80 | $202K |
| 15:52 | 290C Nov 20 | 71 | $20.10 | $143K |
| 15:52 | 280C Nov 20 | 50 | $24.98 | $125K |
| 12:09 | 250P Nov 20 | 146 | $8.30 | $121K |
| 15:02 | 300C Jan 21 | 10 | $74.51 | $75K |
| 10:06 | 230C Jan 15 | 10 | $57.32 | $57K |
| 11:54 | 280C Jan 21 | 7 | $79.60 | $56K |
| 10:32 | 270P Dec 18 | 20 | $23.58 | $47K |
| 12:46 | 260P Jan 21 | 8 | $52.60 | $42K |
| 15:28 | 270C Nov 20 | 14 | $29.75 | $42K |
| 12:09 | 260P Nov 20 | 36 | $11.50 | $41K |
| 10:32 | 260P Dec 18 | 20 | $19.00 | $38K |
The largest single ILMN print was a 290 call expiring Nov 20 for $1.5M at 12:09 ET.
The busiest strikes by premium were 290 calls ($2.0M), 240 puts ($468K), 280 calls ($280K), 260 calls ($206K).
Last 20 sessions of ILMN premium, calls vs puts: Oct 15 $1.2M (46% calls) · Oct 16 $3.1M (61% calls) · Oct 19 $426K (100% calls) · Oct 20 $372K (63% calls) · Oct 21 $3.8M (78% 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 ILMN pages.
These are the October 21, 2026 closing numbers. Members see ILMN's map move live all session.
Common questions
$3.8M in premium across 70 prints, 78% calls. The largest print was a 290 call for $1.5M.
78% 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.