Introductory Context
"The entry price is irrelevant to the question 'should I exit this position now?' The relevant questions are: has the technical thesis been confirmed or denied by the underlying's subsequent price action? Is there more expected move remaining before the target? Is the theta decay at an acceptable level for the remaining expected move timeline? What does the current option chain OI structure say about the expected range for the remaining holding period? None of these analytically relevant questions involve the entry price -- but the anchoring bias causes the entry price to dominate the exit decision regardless. "
How Anchoring Distorts Exit Decisions
Three specific exit distortions result from entry price anchoring. First: refusing to exit a profitable position below the 'round number recovery target.' A trader who entered at Rs 90 and the option is currently at Rs 140 may refuse to exit at Rs 140 because 'I want to wait for Rs 150.' If Rs 150 was not the analytically defined target, this refusal is driven by the anchor of Rs 90 (wanting a more impressive gain relative to the entry) rather than by the technical framework. The analytical question (is the underlying near the target? is the holding period almost expired?) is being overridden by the anchor-driven desire for a larger gain.
Second: the 'at least break even' exit compulsion. A position that has declined from Rs 90 to Rs 65 and has technically approached the stop level creates the anchor-driven compulsion to 'at least not lose money.' The trader delays the stop exit hoping for a recovery to Rs 90, even though: (a) Rs 90 has no special significance to the market, (b) the option has continued to decay toward zero, and (c) the technical thesis may have been invalidated by the underlying's move. The anchor of the entry price prevents a rational stop exit.
Third: the 'wait for the high water mark' refusal to add to positions. A trader who bought a second lot of an option at a lower premium than the first lot may refuse to add a third lot at a higher premium because 'it is above my average entry.' The average entry price is an anchor that creates a perceived barrier to adding at prices above it, even when the technical setup strongly supports adding at the current price.
Reframing the Exit Decision
Replace: 'Should I exit at Rs 65 when I paid Rs 90?' With: 'If I did not own this position and could enter it right now at Rs 65, would I enter it based on the current technical setup?' If YES: Hold the position (the current setup justifies the position). If NO: Exit (the current setup does not justify the position -- anchoring to the entry is causing the hold). The reframing removes the entry price anchor from the decision by converting the question to a fresh entry evaluation at the current price.
The Entry Price Is a Sunk Cost
In economics, a sunk cost is an amount already paid that cannot be recovered regardless of future decisions. The premium paid for an options position is a sunk cost the moment the trade is entered. Whether you paid Rs 90 or Rs 50 for a specific option, the current value of that option is the same -- the premium reflects the current market's assessment of the option's worth, not the history of what you paid. Decisions about holding or exiting should be made based on the option's current value relative to the analytical framework -- not relative to what was paid for it. Sunk cost anchoring causes traders to hold deteriorating options because they 'have already paid' -- a decision that makes no economic sense and consistently produces larger losses than a framework-based exit would.
The market does not know what you paid for the option. Your entry price does not create any obligation for the market to return to it or to move above it. The entry price is information about your personal financial history -- it is not information about what the option will do next.
Structural Defences Against Anchoring
The most effective structural defence against anchoring is the pre-defined target and stop levels recorded before entry. By establishing 'exit when the option reaches Rs 145 (target) or Rs 50 (stop)' before the position is influenced by its development, the exit framework is anchored to the analytical price levels rather than to the entry price. The target and stop become the reference points for exit evaluation -- not the entry price.
The fresh-entry reframing question (Topic 9.3's approach to the Disposition Effect also addresses anchoring): 'If I did not currently hold this position, would I enter it at the current price and conditions?' This question explicitly removes the entry price from the exit decision and replaces it with a current-conditions analysis. If the answer is no (you would not enter a position at the current price and conditions fresh), the position should be exited regardless of where the entry was.
Anchoring to Prior Index Levels as Target Prices
Anchoring bias operates not only on the entry price but on any salient number that has been recently prominent. Nifty at 24,000 creates an anchor -- traders who entered calls when Nifty was at 23,000 may anchor their target to 24,000 as a round-number milestone, holding beyond their analytically derived target because 24,000 is a salient anchor. The analytically derived target is always the relevant reference. Prior index levels, round numbers, and publicly discussed price levels that were not derived from the technical framework are anchors to be recognised and explicitly discounted.
Cover the Entry Price When Reviewing Open Positions
A specific habit for managing entry price anchoring: when reviewing open positions in the Traders Diary to assess whether to hold or exit, physically cover or mentally ignore the entry price field and focus only on: current premium, technical thesis status (has the support level held? has the indicator confirmed the direction?), and remaining time to expiry relative to target distance. The exit decision made without reference to the entry price will be more analytically grounded than one made with the entry price as the primary reference.