Search Results for author: Eyal Neuman

Found 12 papers, 1 papers with code

Optimal Portfolio Choice with Cross-Impact Propagators

no code implementations15 Mar 2024 Eduardo Abi Jaber, Eyal Neuman, Sturmius Tuschmann

We consider a class of optimal portfolio choice problems in continuous time where the agent's transactions create both transient cross-impact driven by a matrix-valued Volterra propagator, as well as temporary price impact.

An Offline Learning Approach to Propagator Models

no code implementations6 Sep 2023 Eyal Neuman, Wolfgang Stockinger, Yufei Zhang

We show that a trader who tries to minimise her execution costs by using a greedy strategy purely based on the estimated propagator will encounter suboptimality due to so-called spurious correlation between the trading strategy and the estimator and due to intrinsic uncertainty resulting from a biased cost functional.

Statistical Learning with Sublinear Regret of Propagator Models

no code implementations12 Jan 2023 Eyal Neuman, Yufei Zhang

For the exploration phase we propose a novel approach for non-parametric estimation of the price impact kernel by observing only the visible price process and derive sharp bounds on the convergence rate, which are characterised by the singularity of the propagator.

Optimal Liquidation with Signals: the General Propagator Case

no code implementations1 Nov 2022 Eduardo Abi Jaber, Eyal Neuman

We consider a class of optimal liquidation problems where the agent's transactions create transient price impact driven by a Volterra-type propagator along with temporary price impact.

Fast and Slow Optimal Trading with Exogenous Information

no code implementations4 Oct 2022 Rama Cont, Alessandro Micheli, Eyal Neuman

We first derive the optimal strategy of the high-frequency trader given any admissible strategy of the institutional investor.

Closed-Loop Nash Competition for Liquidity

no code implementations6 Dec 2021 Alessandro Micheli, Johannes Muhle-Karbe, Eyal Neuman

We study a multi-player stochastic differential game, where agents interact through their joint price impact on an asset that they trade to exploit a common trading signal.

Trading with the Crowd

no code implementations17 Jun 2021 Eyal Neuman, Moritz Voß

We formulate and solve a multi-player stochastic differential game between financial agents who seek to cost-efficiently liquidate their position in a risky asset in the presence of jointly aggregated transient price impact, along with taking into account a common general price predicting signal.

Phase Transitions in Kyle's Model with Market Maker Profit Incentives

no code implementations7 Mar 2021 Charles-Albert Lehalle, Eyal Neuman, Segev Shlomov

In addition to the classical framework, a revenue term is added to the market maker's performance function, which is proportional to the order flow and to the size of the bid-ask spread.

Price Impact on Term Structure

no code implementations19 Nov 2020 Damiano Brigo, Federico Graceffa, Eyal Neuman

We introduce a first theory of price impact in presence of an interest-rates term structure.

A central bank strategy for defending a currency peg

no code implementations2 Aug 2020 Eyal Neuman, Alexander Schied, Chengguo Weng, Xiaole Xue

We model this situation through a continuous-time market impact model of Almgren--Chriss-type with drift, in which the exchange rate is a diffusion process controlled by the price impact of the central bank's intervention strategy.

Evidence of Crowding on Russell 3000 Reconstitution Events

1 code implementation12 Jun 2020 Alessandro Micheli, Eyal Neuman

We develop a methodology which replicates in great accuracy the FTSE Russell indexes reconstitutions, including the quarterly rebalancings due to new initial public offerings (IPOs).

Optimal Signal-Adaptive Trading with Temporary and Transient Price Impact

no code implementations21 Feb 2020 Eyal Neuman, Moritz Voß

We study optimal liquidation in the presence of linear temporary and transient price impact along with taking into account a general price predicting finite-variation signal.

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