Reading the market regime before prices move
Reading the market regime before prices move
Every number here is computed from the traded HYG 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 |
|---|---|---|---|---|
| 76.50 | 4 | 100 | — | Put |
| 77.00 | 28 | 433,549 | 31 | Put |
| 77.50 | 10 | 5,787 | 31 | Put |
| 78.00 | 84 | 442,374 | 12,304 | Put |
| 78.50 | 97 | 42,232 | 12,304 | Put |
| 79.00 | 24,206 | 631,058 | 328 | Put |
| 79.50 | 30,898 | 30,391 | 328 | Call |
| 80.00 | 452,190 | 125,970 | 6,044 | Call |
| 80.50 | 2,243 | 4 | 6,044 | Call |
| 81.00 | 165,389 | 802 | — | Call |
| 81.50 | 0 | 3 | — | Put |
| 82.00 | 130,338 | 678 | — | Call |
| Day | Price | Gamma flip | Call wall | Put wall |
|---|---|---|---|---|
| 2026-08-10 | 79.44 | 79.53 | 80.00 | 79.00 |
| 2026-08-11 | 79.52 | 79.56 | 80.00 | 79.00 |
| 2026-08-12 | 79.62 | 79.57 | 80.00 | 79.00 |
| Metric | Value |
|---|---|
| Max pain strike | 80.00 |
| Put/Call ratio · today's volume | 11.41 |
| Put/Call ratio · open interest | 3.89 |
| 0DTE gamma flip | 79.77 |
| 0DTE contracts in chain | 86 |
| Total contracts read | 466 |
Price 79.1600 is under the gamma flip 79.7500 by 0.74%. Positioning is negative: dealer hedging runs **with** the move rather than against it, so jumps become wider and reversals sharper. Sessions in this state move more than the size of the news would suggest. Price is inside the range between 79.0000 and 80.0000, closer to Put wall of the two.
The largest call cluster sits at 80.0000 (1.06% from price) and the largest put cluster at 79.0000 (-0.20% from price). They are 1.27% apart — a normal range: HYG tends to stay inside it while positioning holds, because hedging at each wall resists a break through it.
صافي تعرّض الغاما لـHYG يبلغ −2.14 مليار، حجمٌ معتبَرٌ يُبقي للتحوّط أثراً clearly present without governing the move on its own. A 1% move calls for about 26.99 مليون shares of hedging. So read the levels below alongside volume, not in isolation from it.
and this reading is built on 466 contracts in the chain.
Over the last 27 days of tracking (292 archived snapshots), HYG stayed above the gamma flip in 64% of readings، وتنقّلت نقطةُ الانقلاب نفسُها بين 79.4200 و79.8900، أي بنطاق 0.59٪، وهو ما يعني أنّ the level is relatively stable and reads as a firmer reference than a symbol whose level swings، and net exposure today is above the period average (−526.34 مليون).
