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I'm not sure if it's the only difference, but according to the wikipedia definition, in a bucket shop there is "no transfer or delivery of the stock or commodities nominally dealt in", which would be one difference from the option market.

The bucket shops described in https://en.wikipedia.org/wiki/Reminiscences_of_a_Stock_Opera... operated by offering incredible leverage and using actual ticker tape quotes, which, at the time, were delayed slightly.

They offered the 'service' of being able to trade large nominal amounts at the last market price, without market impact, but had incredible levels of margin -- 50-1+ or something like that.

This meant that customers often hit margin limits, incurring additional 'commissions' to close out their positions.

Operationally, the bucket shop netted long and short positions, and either actually traded the residual or, occasionally, would use market orders (e.g. aggressive sells) to push the punters into margin calls, which they would then execute. They would then buy low and cover their earlier positions.

Jesse Livermore managed to beat them through astute technical analysis and through the installation of a direct telegraph line from the exchange, thus beating his 'brokers', who promptly kicked him out.

I don’t think most commodities traders actually transfer or take delivery of the commodities though. Sure there are some firms that actually are engaged in the commodities business, and use the futures markets to offset price risk, but most traders in the commodities markets are basically just betting on commodities prices.

The nominal dealing on a future's market will be on some paper that entitles the holder to the commodity delivery at a future date. When you buy oil futures, you are NOT buying oil since the oil doesn't exist (well I guess it exists underground somewhere, maybe), you are buying a contract to deliver crude oil and that needs to really exist. If the contracts don't exist that's a Bucket Shop.

It matters when things go badly wrong, because with a Bucket Shop you're left penniless, it was all imaginary anyway. Whereas with a futures market even if the exchange blows up those are real contracts you can sell to somebody who wants the commodity you were trading in, at worst a mild inconvenience and a small haircut to your final profit.

You may be confusing the exchange with a broker. With a serious commodities broker, you’re using the services of the broker to trade on an exchange, e.g. the CME. The broker does not particularly care whether you make or lose money, so long as you don’t actually go negative.

In the US, securities brokers are very heavily regulated — see “regulation NMS”.

I don't think so (I am not an expert though so it's possible), my point was that even if the exchange, not just your broker, blows up, the thing you were buying and selling is a real thing anyway, unlike in a Bucket Shop.

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