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Communication Dans Un Congrès Année : 2022

Do ETFs increase the comovements of their underlying assets? Evidence from a switch in ETF replication technique

Thomas Marta
  • Fonction : Auteur

Résumé

We investigate the impact of Exchange-Traded Funds (ETFs) on the comovements of their constituent securities using a novel identification that exploits the switch from synthetic to physical replication of a large French ETF. After the switch, constituent stocks experience greater commonality, in both returns and liquidity. For both the full sample of ETF constituents and the least liquid ETF constituents, a larger part of the variation in individual stock returns or liquidity is explained by market-wide variations. We present evidence that ETF arbitrage is the transmission mechanism of the comovements. Moreover, we show that the comovements do not appear excessive.

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Dates et versions

hal-03969602 , version 1 (02-02-2023)

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  • HAL Id : hal-03969602 , version 1

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Thomas Marta, Fabrice Riva. Do ETFs increase the comovements of their underlying assets? Evidence from a switch in ETF replication technique. FMA 2022 Annual Meeting, Oct 2022, Atlanta, United States. ⟨hal-03969602⟩
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