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Offline biophil

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I thought 0.4.17 fixed the short-matching bug?
« on: September 25, 2014, 05:37:26 PM »

In BitBTC market, I have a small bid in at 13,531.7999, and the short wall is at the top of the order book at 13,531.7997. Why is my bid not matching the shorts? And why is the short wall above the feed price of 13,518.9942?

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #1 on: September 25, 2014, 05:46:58 PM »
if the short is outside the range it becomes invalid .. thats why your order is not matched .. (imho)
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Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #2 on: September 25, 2014, 05:51:29 PM »
Hmm... What range are you talking about? Is it a range of valid collateralization? I wonder if that could be it. The top short has a collateral ratio of 20,000 BTSX/BitBTC, but 1.5x13,518 is greater than 20,000. So that would mean that every short in the order book is currently invalid until the price of BTC falls a little more.

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #3 on: September 25, 2014, 06:05:55 PM »
Hmm... What range are you talking about? Is it a range of valid collateralization? I wonder if that could be it. The top short has a collateral ratio of 20,000 BTSX/BitBTC, but 1.5x13,518 is greater than 20,000. So that would mean that every short in the order book is currently invalid until the price of BTC falls a little more.

I think this 20,000 BTSX/BitBTC is just the collateral that person trying to open a short position provides (i.e. does not include the proceeds of the bitBTC sell), partly because the sell price is unknown...
« Last Edit: September 25, 2014, 06:28:40 PM by tonyk »
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #4 on: September 25, 2014, 08:21:51 PM »
Hmm... What range are you talking about? Is it a range of valid collateralization? I wonder if that could be it. The top short has a collateral ratio of 20,000 BTSX/BitBTC, but 1.5x13,518 is greater than 20,000. So that would mean that every short in the order book is currently invalid until the price of BTC falls a little more.

I think this 20,000 BTSX/BitBTC is just the collateral that person trying to open a short position provides (i.e. does not include the proceeds of the bitBTC sell), partly because the sell price is unknown...

Is there a lower bound on the allowable collateral? so if the price is 13,333, could you short at anything less than 20,000?

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #5 on: September 25, 2014, 08:23:28 PM »
Hmm... What range are you talking about? Is it a range of valid collateralization? I wonder if that could be it. The top short has a collateral ratio of 20,000 BTSX/BitBTC, but 1.5x13,518 is greater than 20,000. So that would mean that every short in the order book is currently invalid until the price of BTC falls a little more.

I think this 20,000 BTSX/BitBTC is just the collateral that person trying to open a short position provides (i.e. does not include the proceeds of the bitBTC sell), partly because the sell price is unknown...

Is there a lower bound on the allowable collateral? so if the price is 13,333, could you short at anything less than 20,000?
@ 13,333 the min will be 13333 BTSX and you will be last in line... following others offering more than the min.
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #6 on: September 25, 2014, 08:25:32 PM »
Hmm... What range are you talking about? Is it a range of valid collateralization? I wonder if that could be it. The top short has a collateral ratio of 20,000 BTSX/BitBTC, but 1.5x13,518 is greater than 20,000. So that would mean that every short in the order book is currently invalid until the price of BTC falls a little more.

I think this 20,000 BTSX/BitBTC is just the collateral that person trying to open a short position provides (i.e. does not include the proceeds of the bitBTC sell), partly because the sell price is unknown...

Is there a lower bound on the allowable collateral? so if the price is 13,333, could you short at anything less than 20,000?
@ 13,333 the min will be 13333 BTSX

Ah, because the sale proceeds are 13,333 and those are also held as collateral, so you have 200% collateral after the sale. Thanks.

None of this explains why my bids weren't matching the short wall.

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #7 on: September 25, 2014, 08:28:36 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.
« Last Edit: September 25, 2014, 08:30:10 PM by tonyk »
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #8 on: September 25, 2014, 08:33:27 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.

My bid just went in above the short price, highest collateralization is 30,000. Apparently not matching.

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #9 on: September 25, 2014, 08:35:04 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.


My bid just went in above the short price, highest collateralization is 30,000. Apparently not matching.
13,495.28 will not cut it... try something >= 13,510
[edit] you are on 0.4.17 right?
« Last Edit: September 25, 2014, 08:37:03 PM by tonyk »
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #10 on: September 25, 2014, 08:38:25 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.


My bid just went in above the short price, highest collateralization is 30,000. Apparently not matching.
13,495.28 will not cut it... try something >= 13,510
[edit] you are on 0.4.17 right?

But I don't want to match the ask, I want to match the short.

Yeah, 0.4.17.

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #11 on: September 25, 2014, 08:42:46 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.


My bid just went in above the short price, highest collateralization is 30,000. Apparently not matching.
13,495.28 will not cut it... try something >= 13,510
[edit] you are on 0.4.17 right?

But I don't want to match the ask, I want to match the short.

Yeah, 0.4.17.

the ask has a better price... so you will have to wait somebody to buy it first...
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline tonyk

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #12 on: September 25, 2014, 08:45:38 PM »
Quote
File>Check for updates
 is not working on win7/32bit...
scratch that    working with like 1 min delay...

OK The pop up asked me to update to 0.4.14; selecte 'no' to make backup first.
 File>Check for updates
no reaction...
restarted the client
 File>Check for updates
no reaction...
 1 or 2 min later it finally asked me to update
« Last Edit: September 25, 2014, 08:52:34 PM by tonyk »
Lack of arbitrage is the problem, isn't it. And this 'should' solves it.

Offline toast

Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #13 on: September 25, 2014, 08:47:04 PM »
File>Check for updates
 is not working on win7/32bit...

Your bug report needs more details
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Offline biophil

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Re: I thought 0.4.17 fixed the short-matching bug?
« Reply #14 on: September 25, 2014, 08:50:32 PM »

None of this explains why my bids weren't matching the short wall.
agree! it does not.

Try again I have some bitBTC for sale right now.


My bid just went in above the short price, highest collateralization is 30,000. Apparently not matching.
13,495.28 will not cut it... try something >= 13,510
[edit] you are on 0.4.17 right?

But I don't want to match the ask, I want to match the short.

Yeah, 0.4.17.

the ask has a better price... so you will have to wait somebody to buy it first...

My GUI was (and is? this new update isn't terribly self-explanatory) showing the short wall at the top of the order book. My bid should have matched a short, as should the new bid someone entered for 1 bitBTC.

 

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