TWST options flow
From the October 21, 2026 session tape · published after the close
TWST options traded $1.2M in premium across 22 prints on October 21, 2026: 63% in calls and 37% in puts, with 0% in contracts expiring that day.
TWST largest options trades, October 21, 2026
| Time | Contract | Size | Price | Premium |
|---|---|---|---|---|
| 11:16 | 140P Dec 18 | 153 | $16.13 | $247K |
| 14:37 | 165C Jan 15 | 70 | $19.98 | $140K |
| 11:43 | 150C Dec 17 | 23 | $57.74 | $133K |
| 13:44 | 130P Jan 15 | 74 | $14.10 | $104K |
| 11:55 | 150C Dec 17 | 15 | $57.92 | $87K |
| 09:53 | 150C Jan 15 | 35 | $21.60 | $76K |
| 12:11 | 120C Jan 15 | 17 | $43.70 | $74K |
| 11:57 | 120C Jan 15 | 16 | $43.00 | $69K |
| 12:24 | 150C Nov 20 | 38 | $18.10 | $69K |
| 16:00 | 130P Jan 15 | 28 | $13.80 | $39K |
| 15:04 | 150P Nov 20 | 23 | $16.75 | $39K |
| 15:56 | 165C Jan 15 | 15 | $21.70 | $33K |
| 15:32 | 165C Jan 15 | 15 | $21.50 | $32K |
| 11:43 | 120C Jan 15 | 6 | $43.55 | $26K |
| 15:18 | 150P Nov 20 | 15 | $16.50 | $25K |
The largest single TWST print was a 140 put expiring Dec 18 for $247K at 11:16 ET.
The busiest strikes by premium were 150 calls ($383K), 140 puts ($247K), 165 calls ($205K), 120 calls ($169K).
Last 1 sessions of TWST premium, calls vs puts: Oct 21 $1.2M (63% 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 TWST pages.
These are the October 20, 2026 closing numbers. Members see TWST's map move live all session.
Common questions
$1.2M in premium across 22 prints, 63% calls. The largest print was a 140 put for $247K.
63% 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.