# lookback put option

## Lookback Put Option

A put option giving the holder the right (but not the obligation) to sell the underlying asset on or by the expiration date at the highest price that occurs between the start of the option and the time it is exercised. Because there is no set strike price and the lookback gives the option holder the highest possible flexibility, it carries a high premium (or sale price). See also: Lookback Call Option.
Farlex Financial Dictionary. © 2012 Farlex, Inc. All Rights Reserved

## lookback put option

A specialized option that gives its owner the right to sell the underlying asset at the highest price at which it traded between the effective date and the expiration date of the option.
Wall Street Words: An A to Z Guide to Investment Terms for Today's Investor by David L. Scott. Copyright © 2003 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. All rights reserved.
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In the whole domain D = {(t, S, M) [member of] [0,T] x [M, [infinity]) x [R.sup.+]} of the American fractional floating strike lookback put option model, the American put is alive when S < M and becomes dead when S > M.
They derived the explicit solutions of lookback put option pricing formula.
Then a three-dimensional nonlinear mathematical pricing model for lookback put option value with fixed transaction costs will be established.
The Valuation of Lookback Put Option with Transaction Costs under fBm
The following theorem gives the model for the value of lookback put option with transaction costs.
The pricing model for the value of lookback put option with transaction costs under fractional Brownian motion process is given as
(2) Longstaff (1995) obtains an upper bound on the marketability discount consistent with this range by modeling the value of marketability as the price of a lookback put option. (3)
Section VI furnishes evidence that the marketability discounts predicted by the average-strike put option model are more consistent with empirical private placement discounts than those predicted by the lookback put option model after adjusting for ownership concentration, information, and overvaluation effects.
Longstaff (1995) models the marketability discount as a lookback put option whose value depends upon stock volatility and the time to expiration of the transfer restrictions.
Longstaff (1995) proposes a lookback put option model, and Finnerty (2012) proposes an average-strike put option model that can be used to quantify the loss of timing flexibility.
The benefit of GMDB with a ratchet feature equals the account value plus a lookback put option with payoff [[PI].sub.T].
(10.) A lookback straddle consists of a lookback call option and a lookback put option. A lookback call option allows the owner to buy the underlying asset at the lowest price during the life of the call option.

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