[ANN] Bfxdata.com | Bitfinex Market (price and market depth) + Swap Charts - page 9.

tsay

newbie

Activity: 21

Merit: 0

Hi,bjorn,

I have been visiting charts-bfxdata site quite often and found it really practically useful.
Today I read your "Anouncement: Bfxdata Android App", I own a android phone also, so I think it would be great thing to publish it in the Play Store for free for those who needs it.
Knowing also that you've been reaching the limits of your rhcloud server, if you can upgrade your webhost that certainly can vastly improve the update intervals of the data on the site.
Thanks so much for your great jobs, I would like to donate a bit to let the above mentioned matters be implemented in the near future.

0.1 btc already sent for 8 hours but still didn't reach
19xbr7HuXb42pNV4Qsiwgw8JJHnnWGcSN2
Don't know why, if Bitfinex lost it , I will resend it again.

http://i59.tinypic.com/2vuxxmg.jpg

removebeforeflight

sr. member

Activity: 696

Merit: 258

Been looking for this for some time, great site. Tip sent !

MustMan

member

Activity: 65

Merit: 10

Primarily as a lender, your charts are really helpful.
Thanks ,bjornw.

Great job !

bjornw

full member

Activity: 152

Merit: 100

Hi all,

I've made some changes to the site. The page looked a bit cluttered, so I reorganised a bit now. Hope you all think the new layout is a bit better than the old one. Please let me know what you think about the changes. Other suggestions and feature requests are also greatly appreciated.

Cheers Bjorn

nick32768

newbie

Activity: 42

Merit: 0

Quote from: bjornw on February 03, 2014, 01:53:00 PM

@ nick32768 not to burn your theory down, but I just don't see what I could do with it. Please add you're thoughts on why it's useful, maybe i'm just missing something

Anyhow I really appreciate your input, so if you have more insight please do share them. I'm looking forward to to them

I the past days I noticed an increase of the lending rates when the bitcoin value was heading down. I expected exactly the opposite: lending rates going up when the price was rising.

Now there was the technical issue at Bitfinex + the price plunge and the open swaps positions in USD dropper from 21M to 15M, causing my theory to vanish.

In any case, when the market is moving, the rates changes quickly, so I find the chart useful in anycase.

Thanks again for your efforts!

Nick.

bjornw

full member

Activity: 152

Merit: 100

Made some minor changes:

Added a Huobi ticker
added 24h High/low/volume to the BTCUSD / LTCUSD / LTCBTC orderbooks

bjornw

full member

Activity: 152

Merit: 100

Quote from: nick32768 on February 01, 2014, 04:36:44 PM

Hi bjornw,
great job !!

I have "hacked" your pages to have on the same page this different graphs that are very useful: the USD Highest liquidity chart and the price chart. I saw there is a really strict correlation bewteen the change of the price and the change of the Lowest USD liquidity demand.

I've created a static HTML file with two iframes with the different charts so that I can compare them easily. Maybe you can add it to your service, merging the data of the two graphs in a single one.

Great work!!
Nick.

I've made nick32768 a graph, but to be honest, personally i'm not convinced what I could do with this correlation. I think it's not more than logical that there should be a correlation between the change of price and the peeks in liquify rates: if there is a rally going on more people will open a leveraged position, hence take a liquidity offer. So of course there is a correlation. Rally -> price goes up -> higher liquidity demand -> liquidity rate rises. (if someone thinks differently, please share your thoughts here).

anyway for anyone, like nick32768, interested I've made a "BTC price - USD liquidity rate chart" :
http://www.bfxdata.com/graphLiquidityUSDPriceBTCUSDCombined.php

If anyone can give me a good reason (plus theory) to incorporate it to the main site I will, for the time being use the above link if you're interested

@ nick32768 not to burn your theory down, but I just don't see what I could do with it. Please add you're thoughts on why it's useful, maybe i'm just missing something

Anyhow I really appreciate your input, so if you have more insight please do share them. I'm looking forward to to them

oh and on a side note I've just added liquidity stats pages for BTC / LTC (same as for USD).
A few considerations:

lend books is very "thin" for BTC and LTC liquidity swaps (i.e. very few offers and demands) so depth chart will be a bit hard to read. just click in the legend to hide bids or ask to get a better readable chart.
I've just today started collecting data for the lowest liquidity offer / highest liquidity demand for BTC an LTC so the graphs will look a bit odd the first couple of hours, they'll improve by time (just like a good wine).

regard Bjorn

nick32768

newbie

Activity: 42

Merit: 0

Hi bjornw,
great job !!

I have "hacked" your pages to have on the same page this different graphs that are very useful: the USD Highest liquidity chart and the price chart. I saw there is a really strict correlation bewteen the change of the price and the change of the Lowest USD liquidity demand.

I've created a static HTML file with two iframes with the different charts so that I can compare them easily. Maybe you can add it to your service, merging the data of the two graphs in a single one.

Great work!!
Nick.

bjornw

full member

Activity: 152

Merit: 100

Hi all,

I've added a little feature to the site. In the menu you'll find an entry called "Swap Return Calculator". You can use this to calculate what the return would be on a USD liquidity offer you place on Bitfinex.

This is what it does:

Fill in the number of days you want to offer liquidity, fill in the rate per day you want on your liquidity offer and fill in the USD amount you want to offer.

Either select the "Uninsured" or "Insured" button and the "Return per Day" and the "Return for the whole period" will show. The bitfinex fee (10% on uninsured swaps and 30% on insured swaps are taken into account when calculating the return). So the values shown are what you'll receive (on top of the amount you offered) in your bitfinex deposit wallet when you're liquidity offer were to be taken by a leverage trader.

Hope you'll find this little calculator useful. I for one will stop fiddling about with my good old spreadsheet to find out what what a liquidity offer might gain me.

cheers

ps thanks "Gordon Geeko" @ http://www.cryptocoinsnews.com for the feature request!

bjornw

full member

Activity: 152

Merit: 100

Quote from: dahongfei on January 23, 2014, 11:12:18 PM

The 1 minute interval seems to be not frequent enough. I lended out some 4000 USD @0.36 a couple of hours ago, but the "Lowest USD Liquidity Offer" shows a peak only at @0.33670 around that time.

Maybe you can request the order book more frequently if it doesn't hit API restriction.

Yes I know, it would be better to set a higher update frequency. I've contacted bitfinex about the api poll frequency. Hope to hear from them soon. I don't just want to increase the frequency before knowing I won't overload the api. Giancarlo has seen my site and appreciated what I built so I'm sure he or Raphael will get back at me when they have an oppurtinty. They've been working round the clock for the last couple of weeks (months) so it might take a bit before I hear from them. Till then I'll leave the update frequency as is.

regards

dahongfei

member

Activity: 100

Merit: 13

The 1 minute interval seems to be not frequent enough. I lended out some 4000 USD @0.36 a couple of hours ago, but the "Lowest USD Liquidity Offer" shows a peak only at @0.33670 around that time.

Maybe you can request the order book more frequently if it doesn't hit API restriction.

bjornw

full member

Activity: 152

Merit: 100

Quote from: dahongfei on January 23, 2014, 10:42:18 AM

Maybe you can make it look like:

- Lowest USD Liquidity Offer
- Lowest USD Liquidity Offer (30d average)
- Highest USD Liquidity Demand
(% per day)

That is a better order, just changed it

dahongfei

member

Activity: 100

Merit: 13

Maybe you can make it look like:

- Lowest USD Liquidity Offer
- Lowest USD Liquidity Offer (30d average)
- Highest USD Liquidity Demand
(% per day)

bjornw

full member

Activity: 152

Merit: 100

Quote from: TalkingBit on January 16, 2014, 12:00:46 PM

Would love to see a second "Lowest 30d_ay USD Liquidity Offer" and maybe even a third "Highest USD liquidity Demand" line on the same chart!

Just added a "Lowest 30d_ay USD Liquidity Offer" line to the chart. Turned off by default, users can enable it themselves.
The database needs te get filled with data, so it 'll take a while before a bit more historical data will be available. The 30 day average is calculated every minute and it's a bit hard on the DB to do tis for all the data in the DB. So I won't do that. I'm also collecting data for the average rate per day and per week and might add these options soon as well.

Does any have suggestions on the labeling of the lines? '30 day average Lowest USD Liquidity Offer (% per day)' Is a bit long but I couldn't think of anything better that does describe the line properly. Let me know.

regards

bjornw

full member

Activity: 152

Merit: 100

Quote from: TalkingBit on January 18, 2014, 10:14:06 AM

But i noticed that Demand isn't "live". i.e. that line stops and doesn't update like Liquidity Offer.

~~Forgot to add it, will make it update once a minute just like the offers, just hadn't had time yet.~~
UPDATE: The demand line is now also updating once every minute

Quote from: dahongfei on January 16, 2014, 11:26:00 PM

It's better adding FRR to the order book. Otherwise FRR orders will be missing from the depth graph, making it less useful for users want to put their smaller orders before FRR wall.

ah I see what you mean now. FRR offers / demands are indeed missing entirely from the depth graph / tables... Didn't notice that before. I want to add them but they're missing from the bitfinex api output. I've sent Bitfinex a mail if they can add them to the api. As soon as I find a way to add the FRR offers / demands, I'll add them.

Thanks for pointing this out!

TalkingBit

newbie

Activity: 42

Merit: 0

Quote from: bjornw on January 17, 2014, 03:57:44 AM

Quote from: TalkingBit on January 16, 2014, 12:00:46 PM

Great site very helpful. Would love to see a second "Lowest 30d_ay USD Liquidity Offer" and maybe even a third "Highest USD liquidity Demand" line on the same chart!

I added "Highest USD liquidity Demand" to the liquidity graph. By default it is disabled. You can add it to the chart by clicking on it in the legend box. I think the highest demand is less relevant to use as an indicator of the curren rate (that was why I made this chart in the first place (see post #1). The highest liquidity demand is considerably lower than the rate that leverage traders actually take when opening a position. Not many people accept liquidity demands I think.

Anyway a bit more information can be a good thing. It's up to the user whether or not to look at highest USD liquidity demand or not. Also added a Demands table.

the 30Day average is a very nice suggestion and I might add it as I did with de demands line. I'll keep you updated.

Good stuff. And yeah keep Demand off by default so it doesn't clutter, but is there as an option when needed. But i noticed that Demand isn't "live". i.e. that line stops and doesn't update like Liquidity Offer. Have to refresh the page for it to update. Still on FireFox 22. Think 30day should be the same way available if you want it but off by default so it doesn't clutter. 2day and 30day markets can be very different.

bjornw

full member

Activity: 152

Merit: 100

Quote from: TalkingBit on January 16, 2014, 12:00:46 PM

Great site very helpful. Would love to see a second "Lowest 30d_ay USD Liquidity Offer" and maybe even a third "Highest USD liquidity Demand" line on the same chart!

I added "Highest USD liquidity Demand" to the liquidity graph. By default it is disabled. You can add it to the chart by clicking on it in the legend box. I think the highest demand is less relevant to use as an indicator of the curren rate (that was why I made this chart in the first place (see post #1). The highest liquidity demand is considerably lower than the rate that leverage traders actually take when opening a position. Not many people accept liquidity demands I think.

Anyway a bit more information can be a good thing. It's up to the user whether or not to look at highest USD liquidity demand or not. Also added a Demands table.

the 30Day average is a very nice suggestion and I might add it as I did with de demands line. I'll keep you updated.

dahongfei

member

Activity: 100

Merit: 13

Quote from: bjornw on January 16, 2014, 08:04:23 AM

Quote from: dahongfei on January 16, 2014, 04:52:40 AM

1. the FRR order is missing from your order book

By this you mean the flash return rate, right? As far is I know the Flash Return Rate is the same as the the average rate on all open swaps, so basically it is in the "Average rate on Contract of Difference (CFD)" graph and the "Total sum of active loans" table. I can add "Flash Return Rate" lable to it, If that makes thing more clear.

It's better adding FRR to the order book. Otherwise FRR orders will be missing from the depth graph, making it less useful for users want to put their smaller orders before FRR wall.

TalkingBit

newbie

Activity: 42

Merit: 0

Great site very helpful. Would love to see a second "Lowest 30d_ay USD Liquidity Offer" and maybe even a third "Highest USD liquidity Demand" line on the same chart!

bjornw

full member

Activity: 152

Merit: 100

Quote from: dahongfei on January 16, 2014, 04:52:40 AM

1. the FRR order is missing from your order book

By this you mean the flash return rate, right? As far is I know the Flash Return Rate is the same as the the average rate on all open swaps, so basically it is in the "Average rate on Contract of Difference (CFD)" graph and the "Total sum of active loans" table. I can add "Flash Return Rate" lable to it, If that makes thing more clear.

Quote

2. add zoom in to the liquidity demands/offers graph (does highcharts support it?)

~~I'm almost sure highcharts/highstocks has that option, just hadn't had time to look in to it, is on my todo list.~~ Added it

Quote

3. currently I see two liquidity offers order book where one of them should be liquidity demands.

I messed up

I changed some code yesterday to do less request on the bitfinex api, but I switched some files

, Fixed it.
Thanks for your feedback!

Topic: [ANN] Bfxdata.com | Bitfinex Market (price and market depth) + Swap Charts - page 9. (Read 50214 times)