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The Natural Gas Announcement Day Puzzle

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  • Marcel Prokopczuk, Chardin Wese Simen, and Robert Wichmann

Abstract

This paper studies natural gas futures returns on EIA storage announcement days. More than 50% of the annual return is earned on these days. We find a significant difference between announcement and non-announcement day returns, which cannot be explained by the announcement surprise or other control variables. At the intraday level, the return splits half into a pre- and post-announcement part. The pre-announcement return is entirely generated on days when storage levels exceed analysts' expectations casting doubt on explanations based on informed trading. After transaction and funding cost, a simple trading strategy yields substantial returns.

Suggested Citation

  • Marcel Prokopczuk, Chardin Wese Simen, and Robert Wichmann, 2021. "The Natural Gas Announcement Day Puzzle," The Energy Journal, International Association for Energy Economics, vol. 0(Number 2), pages 91-112.
  • Handle: RePEc:aen:journl:ej42-2-wichmann
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    Cited by:

    1. Yanting Chen & Peter R. Hartley & Yihui Lan, 2023. "Temperature, storage, and natural gas futures prices," Journal of Futures Markets, John Wiley & Sons, Ltd., vol. 43(4), pages 549-575, April.

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    JEL classification:

    • F0 - International Economics - - General

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