No Bucket Shops just don't pass the trade to the market, they take the risk that all profits they'll take the loss on and profits they make the entire profit on, as 99% ish lose, that's a pretty good bet IMHO.
So there negative values, aren't really negative so they can afford to forget in the hope they'll come back and lose more, they still made there account balance before the trade after all
Downside is there taking a loss on all the profits made, but hey they make enough as they don't just get commisions but all the losses. But still likely down after all, although most where playing the long, news comes out market moves up, zero risk game so maybe not ?? After all couldn't drop below 1.20000 before the news and no reason to believe they'd stop supporting 1.20000.
People flagged as profitable they likely pass to the market, so they'll have some exposure.
FXCM ( nearly ), ALPARI ( wiped out ) aren't bucket shops these days, 10 years ago yes but not these days.
Remember when FXCM in it's bucketshop days, gave guaranteed SL's, I used to play news and spikes, 10 SL, hold for 100, 50/50 made loads to they blocked my trades before news LOL, this trade with a 10SL would of exited at -10 no issue at all back then.
So there negative values, aren't really negative so they can afford to forget in the hope they'll come back and lose more, they still made there account balance before the trade after all

Downside is there taking a loss on all the profits made, but hey they make enough as they don't just get commisions but all the losses. But still likely down after all, although most where playing the long, news comes out market moves up, zero risk game so maybe not ?? After all couldn't drop below 1.20000 before the news and no reason to believe they'd stop supporting 1.20000.
People flagged as profitable they likely pass to the market, so they'll have some exposure.
FXCM ( nearly ), ALPARI ( wiped out ) aren't bucket shops these days, 10 years ago yes but not these days.
Remember when FXCM in it's bucketshop days, gave guaranteed SL's, I used to play news and spikes, 10 SL, hold for 100, 50/50 made loads to they blocked my trades before news LOL, this trade with a 10SL would of exited at -10 no issue at all back then.