Reading the market regime before prices move
Every number here is computed from the traded DUK options chain. The call wall is where dealer hedging accumulates above spot and caps upside, the put wall is its mirror below, and the gamma flip is the level where hedging stops damping moves and starts amplifying them.
| Strike | Calls | Puts | Today's volume | Skew |
|---|---|---|---|---|
| 110.00 | 159 | 990 | 24 | Put |
| 115.00 | 84 | 2,837 | 446 | Put |
| 120.00 | 4,784 | 5,832 | 165 | Put |
| 125.00 | 7,511 | 2,580 | 148 | Call |
| 130.00 | 6,559 | 190 | 152 | Call |
| Day | Price | Gamma flip | Call wall | Put wall |
|---|---|---|---|---|
| 2026-08-10 | 120.97 | 120.24 | 130.00 | 120.00 |
| 2026-08-11 | 123.15 | 121.22 | 130.00 | 120.00 |
| 2026-08-12 | 123.48 | 121.36 | 130.00 | 120.00 |
| Metric | Value |
|---|---|
| Max pain strike | 120.00 |
| Put/Call ratio · today's volume | 1.75 |
| Put/Call ratio · open interest | 0.47 |
| 0DTE gamma flip | 118.79 |
| 0DTE contracts in chain | 50 |
| Total contracts read | 96 |
Price 120.22 is above the gamma flip 118.20 by 1.71%. Positioning is positive: as price rises dealers sell hedges, and as it falls they buy — so their hedging acts as a brake pulling price toward the middle. This explains sessions that look quiet despite news that would justify a wider move. Price is pinned to the put wall at 120.00: this level acts as a floor while positioning holds, and breaking it opens a wider range than its proximity suggests.
The largest call cluster sits at 125.00 (3.98% from price) and the largest put cluster at 120.00 (-0.18% from price). They are 4.17% apart — a normal range: DUK tends to stay inside it while positioning holds, because hedging at each wall resists a break through it.
صافي تعرّض الغاما لـDUK يبلغ 2.54 مليون، وهو حجمٌ محدود. Hedging for a 1% move is about 21,144 shares. In this range hedging stays secondary to the stock's own flow, so the levels below should not be asked to carry more than they can.
and this reading is built on 96 contracts in the chain.
Over the last 27 days of tracking (297 archived snapshots), DUK stayed above the gamma flip in 95% of readings، وتنقّلت نقطةُ الانقلاب نفسُها بين 117.65 و123.14، أي بنطاق 4.67٪، وهو ما يعني أنّ the level moves with the market and does not serve as a fixed reference across days، and net exposure today is above the period average (−134,680).