Why not simply compare premium across trades?

Because premium mixes price level, time value and volatility. A cheap far out-of-the-money option and an expensive deep in-the-money one can cost the same and carry very different exposure. Delta-adjusted notional isolates the exposure to small price moves.

How do I convert delta-adjusted notional into ES contracts?

Divide it by the notional of one future, the futures price times 50 dollars for ES. Ten million dollars of delta with ES at 5,000 corresponds to 10,000,000 / 250,000 = 40 contracts, before any ETF-to-index or basis adjustment.

Delta-adjusted notional

Delta-adjusted notional converts an option position into the dollar amount of underlying it behaves like: delta × number of contracts × multiplier × underlying price. It puts options and futures on one scale and shows why premium paid is a poor measure of the exposure a trade creates.

Senzoukria · Glossary · Updated September 2026

At a glance

Formula: |Δ| × contracts × multiplier × spot, signed by direction
Unit: Dollars of underlying exposure
Valid for: Small moves (first order)

Definition

The notional value of an option contract, strike or spot times multiplier, overstates its exposure because the option does not move one for one with the underlying. Multiplying by delta gives the equivalent position in the underlying for small moves. The sign follows the direction of the position: long calls and short puts positive, short calls and long puts negative. Summed over a book, delta-adjusted notional is the dollar delta that a hedge in futures or shares would offset.

Worked example

A print of 500 SPY calls with delta 0.40 at 3.00, SPY at 500. Premium is 3.00 × 500 × 100 = 150,000 dollars. Delta-adjusted notional is 0.40 × 500 × 100 × 500 = 10,000,000 dollars: the trade behaves like 20,000 shares of SPY. With an E-mini S&P 500 future at 5,000 worth 250,000 dollars per contract, that is the exposure of 40 futures. A far out-of-the-money call print with the same premium but a delta of 0.05 would represent only a fraction of that exposure.

Uses and limits

Comparing options flow with futures volume on one scale.
Aggregating a mixed book of options, futures and shares into one dollar delta.
It is a first-order measure: after a move, gamma changes delta, and the notional must be recomputed.
It ignores vega and theta, which can dominate the P&L of options with little delta.
Signing by direction requires knowing the side of each trade, which on public flow is inferred.

In Senzoukria

Senzoukria's Option Flow does not display a delta-adjusted notional figure. It shows, for each print, the premium and the contract's delta from the latest chain snapshot, and its Hedging Pressure panel accumulates side × delta × size × 100 in share-equivalents; multiplying that share figure by the underlying price gives the corresponding dollars. The GEX overview's Total DEX tile gives the share-equivalent delta of the whole open-interest book under its positioning convention.

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Frequently asked questions

Why not simply compare premium across trades?: Because premium mixes price level, time value and volatility. A cheap far out-of-the-money option and an expensive deep in-the-money one can cost the same and carry very different exposure. Delta-adjusted notional isolates the exposure to small price moves.
How do I convert delta-adjusted notional into ES contracts?: Divide it by the notional of one future, the futures price times 50 dollars for ES. Ten million dollars of delta with ES at 5,000 corresponds to 10,000,000 / 250,000 = 40 contracts, before any ETF-to-index or basis adjustment.

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