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Distribution-constrained optimal multiple stopping: the Root-type solution

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  • Shuoqing Deng
  • Daxin Huang

Abstract

We consider the distribution-constrained optimal stopping problem introduced by Bayraktar and Miller (Mathematical Finance, 2019) and Beiglbock et al. (PTRF, 2018). Motivated by the multi-marginal Skorokhod embedding problem (SEP) and applications in financial mathematics, we generalize the Root-type solution to the multi-marginal case. The key difficulty is that the associated stopping barriers need not be ordered, so the problem in general cannot be reduced to a sequence of one-marginal problems. First, we give a probabilistic characterization in terms of sequential optimal stopping for an auxiliary time-reversed process, in the same spirit as Cox et al. (PTRF, 2019). Then, we prove the optimality of this construction by martingale arguments for a general class of reward functions, including multi-marginal versions of all examples in Beiglbock et al. (PTRF, 2018) as special cases.

Suggested Citation

  • Shuoqing Deng & Daxin Huang, 2026. "Distribution-constrained optimal multiple stopping: the Root-type solution," Papers 2608.27374, arXiv.org, revised Sep 2026.
    • Handle: RePEc:arx:papers:2608.27374
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    References listed on IDEAS

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