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Key Takeaways
- An at-ask print matches the displayed offer in the execution-time quote.
- Lifting the offer means a buy order executes against displayed selling interest.
- Calculate gross premium using execution price, contracts and the multiplier.
- An at-ask print shows a buyer willing to pay the offer; the option type, side, position effect and related legs show the exposure it created.
- Group related legs and compare the complete structure with price and volatility.
What is a trade at the ask?
A trade at the ask is an execution whose price matches the displayed offer, the ask, in the quote in effect at that moment. A buy order that takes that offer is described as lifting the offer. An at-ask print locates the execution price; the option type, buy or sell side, position effect, and related legs determine the exposure.
Compare the execution with the quote in effect when the trade occurred. For an exact at-ask match, trade price equals ask. A fill inside the spread lands between the two: the example’s $2.18 fill scores 0.80.
Formula
Ask proximity = (execution price − bid) / (ask − bid)- A value of 1.00 locates the execution at the ask; 0.50 locates it at the midpoint.
- Use the execution-time quote with ask greater than bid.
- An exact opposite-side execution gives 0.00.
At-ask trade example: premium and ask proximity
An XYZ call is quoted $2.10 bid and $2.20 ask when 400 contracts execute at $2.20.
- Bid: $2.10
- Ask: $2.20
- Execution: $2.20
- Gross premium: $88,000 using a 100 multiplier
- Ask proximity: 1.00
The 400-contract execution matches the $2.20 ask and carries $88,000 of gross premium. Someone paid the offer for $88,000 of calls; the side, related legs and position effect show whether that is a new bullish bet.
Ask proximity equals ($2.20 − $2.10) ÷ ($2.20 − $2.10) = 1.00. An execution at $2.18 in that same market scores 0.80. Midpoint execution at $2.15 scores 0.50.
The 400-contract fill takes every contract offered at $2.20 and clears the level. A larger buy climbs to the 120 contracts offered at $2.25 only if its limit allows.
How an at-ask print fits the full position
Read the option type, buy or sell side, position effect and related legs. A long call creates positive option delta. A long put creates negative option delta. Buying to close removes a short option. A long higher-strike call can also be the protective leg of a bear call spread.
Group contracts belonging to a multi-leg option order and calculate the package’s net premium and payoff. Where a leg printed and which way the strategy leans can point in opposite directions, so price the package before you call the direction.
How traders read at-ask activity
Use options flow to inspect repeated activity, trade size, premium, strikes and expirations. Compare the underlying chart, implied volatility and outstanding contracts around those levels. The options profit calculator then prices the resulting structure’s entry, expiration and dollar outcomes at the plan’s targets.
Limitations of at-ask classification
- Confirm the position effect before you call it bullish. An at-ask call can close a short call or be the protective long leg of a bear call spread, and an at-ask put can hedge stock rather than express a bearish view.
- Score each print against the quote at its execution time. Quotes change within milliseconds, and a delayed quote can move the same print from the ask to the inside of the spread or the bid.
- Net the package before you read a leg. In a multi-leg order the exchange allocates leg prices to meet the package’s net price, so one leg can trade at the ask while the package trades for a credit.
- Score only against an execution-time quote with the ask above the bid, and set aside prints against a locked or crossed quote.
- Add up the prints before you size the order. Each print shows the quantity that traded at one level, and a larger order can fill across several.
Bottom line
Lifting 400 calls at the $2.20 offer is the clearest sign of a buyer in a hurry. Read the option type, the position effect, the related legs, and any repeat prints to see what exposure the trade created.
Clear answers
Frequently Asked Questions
Sources and Further Reading
How entries are sourced, calculated and updated: editorial methodology.