[{"data":1,"prerenderedAt":452},["ShallowReactive",2],{"project-4552914":3},{"id":4,"name":5,"line":6,"line_source":7,"title":8,"url":9,"domain":10,"maker":11,"posted_at":12,"year":13,"points":14,"comments":15,"rank_in_year":16,"shown_in_year":17,"top":18,"tier":19,"category":20,"subcategory":21,"format":22,"keywords":23,"reception":28,"sentiment":29,"stance_mix":30,"scored_comments":35,"aspects":36,"strip":47,"post_text":49,"what":50,"said":92,"maker_in_thread":178,"shape":185,"grid":188,"attempts":413,"same_week":414,"maker_shows":45,"maker_hidden":444,"reader_version":445,"card":446},"4552914","Quantblocks","Backtest your trading strategies","title","Show HN: Quantblocks - Backtest your trading strategies","http:\u002F\u002Fwww.quantblocks.com","quantblocks.com","afarquhar",1348218059,2012,99,86,221,1677,14,"notable","finance_crypto","backtesting trading strategies","web_app",[24,25,26,27],"backtesting","trading strategies","stock market","moving average","curious",-0.129,{"positive":31,"neutral":32,"mixed":33,"critical":34},8,27,1,9,45,{"idea":37,"design":40,"privacy":41,"pricing":43,"execution":44,"performance":46},{"positive":38,"critical":39},4,5,{"positive":33,"critical":33},{"positive":42,"critical":42},0,{"positive":33,"critical":33},{"positive":33,"critical":45},2,{"positive":33,"critical":42},[33,42,42,42,42,42,42,39,42,42,42,33,33,42,39,33,39,48,39,48,48,48,48,48,48,48,48,33,48,39,33,39,33,48,42,39,48,48,48,33],3,"We think backtesting is too difficult, this is our attempt to make it much easier and more fun - let us know what you think!",{"problem":51,"audience":57,"pricing":69,"motivation":77,"time_to_build":81,"stack":82,"openness":90,"stage":91,"team_size":90},{"value":52,"source":53,"evidence":54},"Backtesting trading strategies is too difficult","maker",[55],{"id":56},"post",{"value":58,"source":59,"evidence":60},"Retail traders wanting to test trading strategies","inferred",[61,65],{"id":62,"by":63,"text":64},"4554757","dunster","If you find Quantblocks interesting, you should also look at Quantopian. (www.quantopian.com) We're geared a bit more towards programmers. Rather than use blocks, our members…",{"id":66,"by":67,"text":68},"4553200","ukoki","This is fantastic. Love the clean, straightforward interface. However I have a feeling that anyone knowledgeable enough to profit from this is probably already heavily invested…",{"value":70,"source":71,"evidence":72},"Free tier with a paid 3-month Pro subscription","commenter",[73],{"id":74,"by":75,"text":76},"4553246","s_henry_paulson","I built something similar for my own personal use, so it's very interesting to see something similar polished for mass consumption. The only thing I'm confused about is what you…",{"value":78,"source":53,"evidence":79},"Make backtesting easier and more fun",[80],{"id":56},null,[83],{"value":84,"source":71,"evidence":85},"Xignite API used for historical data",[86],{"id":87,"by":88,"text":89},"4553149","startuprob","We're using Xignite's API right now. It's super-simple to integrate with.","unknown","launched",{"praise":93,"objections":94,"requests":127,"questions":155,"alternatives":166},[],[95,105,116,123],{"value":96,"source":71,"evidence":97},"Only daily data, no intraday",[98,102],{"id":99,"by":100,"text":101},"4553481","mswen","How granular is the data that you backtest against? Daily, Hourly, Minute or tick data? I subscribed to another similar service for several years but one thing I always wished…",{"id":103,"by":11,"text":104},"4553595","Currently it's daily. One of the possible future extensions is into intra-day but it brings a whole load of extra technical problems. Honestly the problems look really fun,…",{"value":106,"source":71,"evidence":107},"Strategy IP terms claim user algorithms",[108,112],{"id":109,"by":110,"text":111},"4554212","sycren","Looking at the terms & conditions, any algorithms that the users create become the intellectual property of Quantblocks. Is this just a tool to help users or is it a tool for the…",{"id":113,"by":114,"text":115},"4554650","etrain","The signup\u002Fconfirm\u002Flogin metaphor is really tired and annoying. Don't give me two screens of meaningless text, show me what your product does and let me interact with it before…",{"value":117,"source":71,"evidence":118},"Too few stocks available to test",[119],{"id":120,"by":121,"text":122},"4556154","steamfarmer","I like the idea of the site, but only having 5 stocks available to test against doesn't allow me to get comfortable enough with the platform to pony up for a paid account.…",{"value":124,"source":71,"evidence":125},"Unclear what Pro subscription includes",[126],{"id":74,"by":75,"text":76},[128,135,141,148],{"value":129,"source":71,"evidence":130},"Support for multiple securities at once",[131],{"id":132,"by":133,"text":134},"4553600","farnja","Hey! This is very cool, very fast. One thing I would suggest is the ability to specify a list of securities rather than a single security. In my experience, if you're going to…",{"value":136,"source":71,"evidence":137},"Optimise button for parameters",[138],{"id":139,"by":11,"text":140},"4553457","we've all been salivating about the potential for an 'Optimise' button. It would be really cool, it has a few wrinkles though, e.g. there might not be a unique maximum solution,…",{"value":142,"source":71,"evidence":143},"Volume data",[144],{"id":145,"by":146,"text":147},"4553516","annon","Volume data would be nice.",{"value":149,"source":71,"evidence":150},"Forex support and a programming language option",[151],{"id":152,"by":153,"text":154},"4553579","espinchi","Very neat. Do you guys have plans to add support for Forex trading too? And, even if one of the strong points is \"no coding required\". Do you foresee at some point to let…",[156],{"value":157,"source":71,"evidence":158},"Where does the historical data come from and can it be used commercially",[159,163],{"id":160,"by":161,"text":162},"4553143","greendestiny","Looks cool, can I ask where you sourced the historical data from?",{"id":164,"by":11,"text":165},"4553164","yeah that caught us out - we found that even though the data is freely available from those sources, you're not allowed to include that data in a commercial app :-(",[167,171],{"value":168,"source":71,"evidence":169},"Quantopian",[170],{"id":62,"by":63,"text":64},{"value":172,"source":71,"evidence":173},"R, Octave, Matlab or Excel",[174],{"id":175,"by":176,"text":177},"4553904","Dzidas","If you really want quant stuff, then use R, Octave||Matlab or even Excel. MA, RSI test are available on Internet and works with all browser. By the way - it does work well with…",{"comments":39,"answered":48,"key":179},[180,183,184],{"id":181,"text":182},"4553177","yep you're totally right, but hopefully it's still useful!",{"id":139,"text":140},{"id":103,"text":104},{"commenters":186,"max_depth":34,"maker_replies":39,"first_comment_mins":35,"lifespan_hours":187},44,82,[189,193,197,200,202,204,206,209,211,213,216,219,222,225,227,230,234,237,240,241,245,247,250,252,254,256,259,262,264,267,270,274,277,279,281,283,284,289,292,294,296,299,301,303,305,307,310,312,314,317,319,320,322,324,325,326,330,332,335,338,341,344,346,349,354,356,358,361,366,370,373,374,377,378,380,382,385,388,391,393,396,399,401,403,407,410],[190,42,33,191,192,42],"4553617","project\u002Fcritical\u002Fidea","arturadib",[194,42,42,195,196,42],"4553670","commenter\u002Fneutral\u002Fnone","smoorman1024",[198,42,42,195,199,42],"4553803","bensw",[201,42,42,195,192,42],"4553832",[203,42,42,195,199,42],"4553849",[205,42,42,195,199,42],"4553826",[207,42,42,195,208,42],"4553871","cynicalkane",[210,42,42,195,192,42],"4553895",[212,42,42,195,208,42],"4553924",[214,42,42,195,215,42],"4553951","tatsuke95",[217,42,42,195,218,42],"4553990","Permit",[220,42,42,195,221,42],"4554149","genwin",[223,42,42,195,224,42],"4553897","_lakai_",[226,42,42,195,218,42],"4553906",[228,42,42,195,229,42],"4554459","beagle3",[231,42,39,232,233,42],"4554922","project\u002Fpositive\u002Fidea","prsutherland",[235,42,42,195,236,42],"4555561","kevinpet",[238,42,42,195,239,42],"4557042","fawce",[62,33,42,195,63,42],[242,33,42,243,244,42],"4555362","commenter\u002Fpositive\u002Fnone","jnewell",[246,33,42,195,63,42],"4566463",[248,33,42,195,249,42],"4555741","YuriNiyazov",[251,33,42,195,239,42],"4556988",[113,45,33,253,114,42],"project\u002Fcritical\u002Fdesign",[109,48,48,255,110,42],"project\u002Fneutral\u002Fprivacy",[257,48,42,258,236,42],"4555614","commenter\u002Fneutral\u002Fprivacy",[260,38,33,191,261,42],"4553165","adg001",[181,38,42,263,11,33],"maker\u002Fneutral\u002Fidea",[265,38,42,266,88,42],"4553190","commenter\u002Fneutral\u002Fidea",[268,38,42,195,269,42],"4553267","phreeza",[271,38,39,272,273,42],"4553207","project\u002Fpositive\u002Fdesign","frinxor",[275,38,42,266,276,42],"4553530","theorique",[278,38,33,191,269,42],"4553732",[280,38,42,266,261,42],"4553811",[282,38,42,266,276,42],"4554872",[132,39,39,232,133,42],[285,286,48,287,288,42],"4553041",6,"project\u002Fneutral\u002Fidea","crntaylor",[290,286,48,291,88,42],"4553124","maker\u002Fneutral\u002Fnone",[66,293,39,232,67,42],7,[295,293,48,263,88,42],"4553205",[297,293,48,287,298,42],"4553219","mikecsh",[300,293,48,291,88,42],"4553230",[302,293,42,195,298,42],"4553234",[304,293,42,195,88,42],"4553261",[306,293,48,287,67,42],"4553224",[308,293,48,263,309,42],"4553250","mdupenois",[311,293,42,195,67,42],"4553278",[313,293,48,291,309,42],"4553296",[315,293,48,263,316,42],"4553352","shyn3",[318,293,48,287,67,42],"4553398",[139,293,42,263,11,33],[321,293,48,287,67,42],"4553521",[152,31,48,323,153,42],"project\u002Fneutral\u002Fnone",[99,34,48,323,100,42],[103,34,42,291,11,33],[327,328,48,329,298,42],"4553379",10,"project\u002Fmixed\u002Fdesign",[331,328,48,291,309,42],"4553478",[333,328,48,334,298,42],"4554313","project\u002Fneutral\u002Fdesign",[74,336,33,337,75,42],11,"project\u002Fcritical\u002Fpricing",[339,336,48,340,88,42],"4553257","maker\u002Fneutral\u002Fpricing",[342,336,48,343,298,42],"4553287","project\u002Fneutral\u002Fpricing",[345,336,48,340,309,42],"4553319",[347,336,39,348,298,42],"4553334","maker\u002Fpositive\u002Fpricing",[350,351,39,352,353,42],"4553884",12,"maker\u002Fpositive\u002Fidea","paddy_m",[175,355,33,191,176,42],13,[120,18,33,357,121,42],"project\u002Fcritical\u002Fexecution",[359,360,48,287,236,42],"4555629",15,[362,363,39,364,365,42],"4554268",16,"maker\u002Fpositive\u002Fexecution","tixocloud",[367,368,33,357,369,42],"4555483",17,"dollar",[160,371,48,372,161,42],18,"project\u002Fneutral\u002Fperformance",[87,371,48,372,88,42],[375,371,48,376,298,42],"4553153","maker\u002Fneutral\u002Fperformance",[164,371,42,376,11,33],[379,371,42,195,298,42],"4553191",[381,371,42,291,11,33],"4553218",[383,371,42,384,218,42],"4553583","other\u002Fneutral\u002Fperformance",[386,371,39,387,161,42],"4553182","project\u002Fpositive\u002Fperformance",[389,371,48,372,390,42],"4553195","pja",[392,371,48,372,88,42],"4553197",[394,371,48,340,395,42],"4553610","emilioolivares",[397,371,42,384,398,42],"4553720","gns24",[400,371,42,384,298,42],"4554288",[145,402,48,334,146,42],19,[404,405,33,191,406,42],"4553527",20,"azmenthe",[408,405,42,266,409,42],"4553578","solutionyogi",[411,405,42,412,215,42],"4553993","other\u002Fneutral\u002Fnone",[],[415,420,425,430,434,439],{"id":416,"name":417,"points":418,"category":419},"4570382","Ejecta",190,"dev_tools",{"id":421,"name":422,"points":423,"category":424},"4556296","The 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