STX options flow
From the October 21, 2026 session tape · published after the close
STX options traded $33.8M in premium across 1,053 prints on October 21, 2026: 57% in calls and 43% in puts, with 0% in contracts expiring that day. That was 59% of its average session over the prior 19.
STX largest options trades, October 21, 2026
| Time | Contract | Size | Price | Premium |
|---|---|---|---|---|
| 16:00 | 700C Jan 15 | 362 | $90.00 | $3.3M |
| 10:13 | 690C Oct 30 | 370 | $36.21 | $1.3M |
| 13:36 | 860C Jan 15 | 348 | $37.90 | $1.3M |
| 10:12 | 740C Oct 30 | 611 | $18.80 | $1.1M |
| 10:13 | 705C Oct 30 | 200 | $33.04 | $661K |
| 10:13 | 720P Jan 15 | 60 | $97.51 | $585K |
| 14:57 | 610P Dec 18 | 164 | $30.40 | $499K |
| 12:54 | 660P Jan 15 | 82 | $59.40 | $487K |
| 12:03 | 700P Nov 20 | 78 | $56.43 | $440K |
| 15:10 | 780P Oct 23 | 53 | $80.74 | $428K |
| 09:59 | 675P Oct 30 | 151 | $27.26 | $412K |
| 16:00 | 730C Oct 23 | 303 | $10.00 | $303K |
| 16:00 | 700P Nov 20 | 57 | $52.80 | $301K |
| 10:13 | 620P Jan 15 | 60 | $47.48 | $285K |
| 11:49 | 670P Nov 20 | 69 | $40.87 | $282K |
The largest single STX print was a 700 call expiring Jan 15 for $3.3M at 16:00 ET.
The busiest strikes by premium were 700 calls ($4.6M), 700 puts ($2.1M), 690 calls ($1.9M), 740 calls ($1.4M).
Last 20 sessions of STX premium, calls vs puts: Oct 15 $239M (7% calls) · Oct 16 $67.4M (18% calls) · Oct 19 $40.7M (27% calls) · Oct 20 $35.9M (48% calls) · Oct 21 $33.8M (57% 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 STX pages.
These are the October 20, 2026 closing numbers. Members see STX's map move live all session.
Common questions
$33.8M in premium across 1,053 prints, 57% calls. The largest print was a 700 call for $3.3M.
57% 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.