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     7 years ago  

    I thought it was, but only with significant margin: https://www.marketwatch.com/story/interactive-brokers-says-its-will-now-accept-bets-that-bitcoin-will-tumble-2017-12-13

    If you have different info I'd love to see it.

    Either way, as @haejin pointed out, it's somewhat irrelevant because these things often become post hoc justifications for price.

    I think it's worth understanding the implication of shorting in the market though, since in the past, it was a very one sided market.

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       7 years ago  

      Also: https://www.ft.com/content/a72a61dc-e6f2-11e7-8b99-0191e45377ec

      In contrast, professional traders — believed largely to be proprietary trading companies — held bearish positions four times the size of their bullish ones, with a total short position that was 65 per cent of open interest.

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