DIA options flow
From the October 21, 2026 session tape · published after the close
DIA options traded $8.4M in premium across 733 prints on October 21, 2026: 65% in calls and 35% in puts, with 0% in contracts expiring that day. That was 83% of its average session over the prior 19.
DIA largest options trades, October 21, 2026
| Time | Contract | Size | Price | Premium |
|---|---|---|---|---|
| 15:42 | 555P Dec 18 | 105 | $29.60 | $311K |
| 14:17 | 530C Nov 20 | 403 | $7.40 | $298K |
| 10:01 | 470C Oct 23 | 35 | $56.49 | $198K |
| 16:03 | 530C Dec 18 | 110 | $11.24 | $124K |
| 15:42 | 548P Nov 20 | 50 | $23.20 | $116K |
| 15:42 | 545P Nov 20 | 55 | $19.70 | $108K |
| 10:01 | 498C Oct 23 | 35 | $28.56 | $100K |
| 12:30 | 538C Nov 20 | 258 | $3.52 | $91K |
| 14:44 | 525P Oct 30 | 240 | $3.41 | $82K |
| 15:11 | 525P Nov 6 | 165 | $4.79 | $79K |
| 15:42 | 521P Oct 23 | 1,013 | $0.78 | $79K |
| 15:24 | 525P Nov 6 | 160 | $4.85 | $78K |
| 14:17 | 516C Oct 30 | 57 | $12.95 | $74K |
| 12:03 | 522C Nov 6 | 79 | $8.99 | $71K |
| 12:56 | 521C Nov 20 | 58 | $12.02 | $70K |
The largest single DIA print was a 555 put expiring Dec 18 for $311K at 15:42 ET.
The busiest strikes by premium were 530 calls ($620K), 525 calls ($609K), 525 puts ($545K), 526 calls ($492K).
Last 20 sessions of DIA premium, calls vs puts: Oct 15 $11.7M (62% calls) · Oct 16 $19.8M (66% calls) · Oct 19 $6.1M (61% calls) · Oct 20 $11.9M (77% calls) · Oct 21 $8.4M (65% 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 DIA pages.
These are the October 21, 2026 closing numbers. Members see DIA's map move live all session.
Common questions
$8.4M in premium across 733 prints, 65% calls. The largest print was a 555 put for $311K.
65% 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.