Hedging pressure (options flow)
Hedging pressure is a running total of the share-equivalent delta that option prints would force a delta-neutral counterparty to hedge: aggressor side × delta × size × multiplier, summed over the session. It turns the flow of trades into an estimated hedging need, under the assumption that dealers take the other side of each aggressive print.
Senzoukria · Glossary · Updated September 2026
At a glance
- Per print
- Side (+1 buy, −1 sell) × delta × size × 100
- Unit
- Share-equivalents of the underlying
- Key assumption
- A delta-hedging dealer is the counterparty of each aggressor
How it is built
When a client buys a call from a dealer, the dealer becomes short that call and short its delta; to stay neutral it buys the underlying. When a client buys a put, the dealer becomes short the put, which carries positive delta, and sells the underlying. Signing each print by its aggressor side and multiplying by delta, size and multiplier gives the share-equivalent the dealer would hedge. Summing through the session produces a curve that rises when prints imply dealer buying and falls when they imply dealer selling.
Worked example
Three prints in a window: 500 calls bought with delta 0.40 add +20,000; 300 puts bought with delta −0.50 add −15,000; 200 calls sold with delta 0.30 add −6,000. The cumulative pressure is −1,000 share-equivalents: small, although 1,000 contracts and substantial premium traded. Premium and pressure measure different things.
| Side | Delta | Contribution (shares) | |
|---|---|---|---|
| 500 calls | Buy (+1) | +0.40 | +20,000 |
| 300 puts | Buy (+1) | −0.50 | −15,000 |
| 200 calls | Sell (−1) | +0.30 | −6,000 |
| Total | −1,000 |
Pressure, DEX and GEX
- Delta exposure (DEX) is computed on open interest, a daily stock of positions; hedging pressure is computed on today's prints, an intraday flow.
- Gamma exposure describes how hedges would change with price; hedging pressure describes the hedges implied by trades already done.
- All three rest on assumptions about who is on the other side. Pressure assumes the dealer is the passive counterparty; a trade between two clients, or a dealer who hedges elsewhere, breaks the link.
- The delta used is the contract's delta, not the delta after the trade has moved the market.
In Senzoukria
Option Flow's Hedging Pressure panel, labelled dealer share-equivalent, accumulates side × delta × size × 100 over the prints in the window, bucketed by second and drawn as a signed curve around zero. The delta attached to each print comes from the latest chain snapshot. Prints without a readable side (mid or unknown) or without a delta are excluded rather than estimated, so a source that publishes no greeks produces no curve, which is the case of the Databento flow path. It is a mechanical reading of the flow in one window, not an observation of what dealers hold.
Related
- Delta exposure (DEX)
- Delta hedging
- Options trade side
- Hedging pressure and sweeps documentation
- Option Flow
In the same section
- Delta-adjusted notional
- Gamma squeeze
- Net premium
- Hedging
- Heatmap presets
- Hidden order
- Heatmap footprint
- Hidden Markov model
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Frequently asked questions
- Is hedging pressure a buy or sell signal for futures?
- No. It estimates the hedging implied by aggressive option prints under an assumption about counterparties. Whether that hedging happened, in which instrument and when, is not observable. It is context to compare with what the futures tape did.
- Why exclude mid prints rather than split them?
- Because a mid print has no identifiable aggressor, and assigning half to each side would create pressure that the data does not support. Excluding them keeps the curve conservative, at the cost of ignoring some volume.