Theindexpriceiscalculatedbasedontheweightedaverageofthelatesttransactionpricesfrommultipleexchanges.
Eachoptionscontracthasanindex.Forexample,BTC/USDToptionscontractsuseBTC/USDTindexpricetocalculate.Contractsforthesametokenwithdifferentexpirationdatesusethesameindexprice.Forinstance,BTCweekly,bi-weekly,andquarterlyoptionsalluseBTC/USDTindexprice.
Sampledatasampling:getthelatestpriceoftheexchangesinthetablethroughAPIevery6seconds(basedontheindexupdateinterval).
MechMind #7689以12.5万ETH的价格成交，创以ETH计价NFT最高成交价:金色财经报道，据数据显示，MechMind #7689于21日3时18分以12.5万ETH的价格在Opensea上成交，成为以ETH计价有史以来成交价最高的NFT。目前，该NFT地板价仅为0.06 ETH。
MechMinds官方回应，该购买行为是官方为宣传项目所采取的行动。此外官方还表示，该行为还得益于NFT市场的0手续费政策，且该政策还将使得清洗交易难以被检测。[2023/2/21 12:19:11]
Denominationcurrency:Ifthedenominationcurrencyofanexchangeisdifferentfromthedenominationcurrencyofatradingpair,thedenominationcurrencyoftheexchangewillbeconvertedintothedenominationcurrencyoftheindexpriceaccordingtotheexchangerate.
CoinDesk报告：加密行业第一季度机构活动放缓，散户兴趣增加:根据CoinDesk Research撰写的《2021年季度评论》，尽管2020年第四季度的行业增长主要是由机构对资产市场和基础设施的参与推动的，但2021年第一季度机构投资者的活动似乎正在放缓，这种情况至少持续了几个月。但是，某些指标表明散户投资者和交易员的兴趣正在增加，带来了新的流量和投资模式。[2021/4/7 19:53:09]
ExponentialExceptionHandling
Thepriceofasingleexchangedeviatessignificantlyfromotherexchanges.Solutionsareasbelow：Iftherearemorethan2validexchangeswithintheindices,whenthepriceofacertainexchangedeviatesmorethan±3%fromtheaveragepriceofotherexchanges,forsuchexchange,itspricewillbecalculatedas±3%oftheaveragepriceofotherexchanges:Forexample:Let'ssaytheBTCpriceofXexchangeis518USD,andthepricesofotherexchangesare500,501,502,503,504(USD).Theaveragepriceofotherexchangesis502.5,sothepriceofXexchangedeviatesfromothersby(518-502.5)/502.5=3.08%,whichismorethan3%.Insteadof518USD,systemwilltake502.5*(13%)=517.57asXexchange'sprice.Therefore,thefinalindexwillbe(517.57500501502503504)/6=504.59USD
分析 | Coindesk分析：BTC的多方已经显出了疲惫迹象:据Coindesk分析，尽管BTC在4小时图上仍在努力维持MA200，但买方已经出现了疲惫的迹象。在日线图上BTC价格或降至50日均线（现6861）附近。如果收盘价在8284美元上方收盘，将使短期看跌无效。[2019/6/6]
Ifthereareonly2validexchangesintheindex(thereareonly2exchangesintheindex,orduetomarketlosses,someexchangeswillbetemporarilyexcluded).Ifthepricedeviationobtainedbythetwoplatformsisgreaterthan25%,itisconsideredthatthepricedeviationfromtheindexpricecalculatedlasttimeisnormal,andtheotheronehasanoolongindex.Atthistime,theindexpricetemporarilyanchorstheexchangewiththenormalprice.
分析 | coindesk分析：长期看空 短期反弹修复:据coindesk分析， BTC市场仍以看跌为主，但空头在3500美元附近有所枯竭，或许正为更强劲的修正反弹铺平道路。在4小时图表上，BTC已经清除了下降趋势线阻力，进一步证实了11月25日形成的底背离。因此，比特币似乎有望出现强劲的修正反弹。不过，复苏反弹可能难以突破为4,450美元， 目前，长期趋势仍然倾向于BTC将跌至3000美元。[2018/11/28]
Iftheindexpriceisbasedonthepriceofonlyoneexchangeatatime(allotherexchangeshavebeenabnormallyremoved).Ifthedeviationbetweentheobtainedpriceandtheindexpriceobtainedattheprevioustimeisgreaterthan25%,itisconsideredthatthereisanoolongindex,andtheindexpriceistakenfromtheprevioustimeprice.
西班牙央行行长Linde：数字货币是高度风险性的资产:欧洲央行管委兼西班牙央行行长Linde日前表示：“数字货币是高度风险性的资产”。此前，西班牙中央银行公布了一份公开文件，详细说明数字货币的风险和用途，强调该国没有任何监管机构批准或登记过数字货币。Linde也表示比特币乃是一种资产，而非货币。虽然西班牙对加密数字有抵触心态，但西班牙对区块链技术表现出强烈的热情，曾表示将会在今年出台法案对区块链技术的公司减免税收。[2018/3/5]
Exchangemarketdataislost.Solutions：Ifacertainexchangefailstoobtainmarketdataatacertainpointintime(theexchangeisclosed,themarketisinterrupted,oranattackisencountered),thepriceatthatpointintimewillbecalculatedbasedonthelatestvalidpriceobtained.Ifthevaliddataobtainedbyanexchangeinthepast100datapoints(10min)islessthan10points(10%),wewillconsiderthepriceofthisexchangetobeuninstructiveandweightthepriceoftheexchange.Temporarilyadjustedto0.Aftertheexchangerecoversdata,ifatleast90ofthepast100datapointsarevalid(90%),thenwewillrestoretheweightoftheexchange.
Singleexchangepricesdeviatedsignificantlyforalongtime.Solutions：Whenthepriceofanexchangedeviatessignificantlyfromotherexchangesforalongtime,webelievethatthepriceofthatexchangemayloseitsguidingsignificance,andthesampleandweightoftheindexwillbeadjusted.Thespecificadjustmentplanissubjecttotheplatformannouncement.
ExchangeRateCalculation
Theexchangerateforperpetualswapsandoptionscontractsissampledfrom"Huobi",whichissampledeveryminute.
https://api.huobi.pro/general/exchange_rate/list
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