比特币合约交割会得到什么信息比特币合约交割会得到什么结果

2022-04-23 03:10:56

❶ 比特币合约交易是什么

1、合约的定义
期货合约是买方同意在一段指定时间之后按特定价格接收某种资产，卖方同意在一段指定时间之后按特定价格交付某种资产的协议。
双方同意将来交易时使用的价格称为期货价格。双方将来必须进行交易的指定日期称为结算日或交割日。双方同意交换的资产称为“标的”。
如果投资者通过买入期货合约（即同意在将来日期买入）在市场上取得一个头寸，称多头头寸或在期货上做多。相反，如果投资者取得的头寸是卖出期货合约（即承担将来卖出的合约责任），称空头头寸或在期货上做空。

2、合约的由来
期货合约是指由期货交易所统一制定的、规定在将来某一特定的时间和地点交割一定数量和质量商品的标准化合约。它是期货交易的对象，期货交易参与者正是通过在期货交易所买卖期货合约，转移价格风险，获取风险收益。
期货合约是在现货合同和现货远期合约的基础上发展起来的，但它们最本质的区别在于期货合约条款的标准化。在期货市场交易的期货合约，其标的物的数量、质量等级和交割等级及替代品升贴水标准、交割地点、交割月份等条款都是标准化的，使期货合约具有普遍性特征。
期货合约中，只有期货价格是唯一变量，在交易所以公开竞价方式产生。

3、合约的分类
数字货币合约可分为：交割合约和永续合约。
（1）交割合约：期货交割是指期货合约到期时，交易双方通过该期货合约所载商品所有权的转移，了结到期未平仓合约的过程。
（2）永续合约：是一种近似杠杆现货交易的衍生品，是以BTC、USDT等币种进行结算的数字货币合约产品。投资者可以通过买入做多来获取数字货币价格上涨的收益，或通过卖出做空来获取数字货币价格下跌的收益。
永续合约与传统期货存在一定差异：它没有到期时间，因而对于持仓时间没有任何限制。为了保证跟踪标的价格指数，永续合约通过资金费用的机制来保证其价格紧跟标的资产的价格。

❷ BTC合约交易所是什么意思

虚拟合约是合约交易的买卖对象，是由合约交易所统一制定的，规定了某一特定的时间交割一定数量商品的标准化合约。

在合约交易过程中，交易的双方将获得各自的权利和义务。例如合约的买卖双方以1000元美元的价格成交了100份标的为张（100美元）的合约，那么合约的买方即获得了在某月某日以1000美元/btc的价格买入1万美元比特币的权利和义务，同样的，卖方也获得了在某月某日以1000美元/btc的价格卖出一万美元比特币的权利和义务。代表了买卖双方所拥有的权利和义务的合约，就是虚拟合约。
在大多数时候，投资者并不会实际履行合约的权利和义务，而是在合约生效，也就是交割日之前，通过交易这份合约来获取收益。
BTC合约交易所我首推BBKX交易所，之前不懂交易，自己瞎做，这个没有自己的交易系统还是不好做的，市场变化太快。这个平台上线了合约跟单功能，可以跟随一些成熟的交易员进行跟单，省的自己瞎做，也不用盯盘了。

关于BBKX
1、一句话简介
BBKX.COM于2019年在新加坡注册成立，已获得杜均（前火币联合创始人、金色财经创始人）与链上基金的联合战略投资。
2、六大优势
①业务齐全，永久返佣
平台业务有现货交易（已上线170余个币对）、ETF专区、合约交易、期权交易、法币交易，满足绝大部分用户需求。所有用户可享受邀请推荐产生的手续费分成，只升级不降级，返佣永久有效。
②交易手续费，全网最低
现货交易的币对零门槛享受0.05%交易手续费，适合高频交易、网格策略、对冲套利等策略。
③担心爆仓？就买ETF！
ETF的优势有：一键多空、三倍杠杆、无需保证金、永不爆仓。适合单边行情，不宜长期持有。
管理费每倍千一，远低于市场。
④百倍合约，“正反”都有
最高100倍杠杆永续合约，支持正向和反向，差价小，深度足够！每周有多场交易课程可以免费学习，还可以用模拟合约进行训练。
⑤一键跟单，坐享其成
不懂技术？没时间盯盘？做的越多，亏得越多？一键跟单，自动与合约大师同步交易，真正坐享其成！
⑥期权交易，赚钱更快
平台独创期权交易，与数万人一起互动猜涨跌，赚钱更快更轻松！

❸ 比特币交割合约有什么规则需要注意

次周合约、季度合约都会参与结算，结算以后会以结算基准价重新计算盈亏，结算之后就可以转出盈利部分；如果用户在结算之前平仓，那么结算后开仓所需的保证金和已实现盈亏全部可以转出虚拟合约帐户。

❹ 比特币合约交易什么意思

合约交易是对比特币莱特币期货合约交易的统称。
2013年6月，796交易所在比特币业内率先开发出了比特币周交割标准期货—T+0双向交易虚拟商品作押易货合约（合约交易）。
合约交易的出现结束了此前比特币不能做空的历史，开启了比特币衍生品市场发展繁荣的序幕。

温馨提示：以上信息仅供参考，不代表任何建议。

应答时间：2020-12-16，最新业务变化请以平安银行官网公布为准。
[平安银行我知道]想要知道更多？快来看“平安银行我知道”吧~
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❺ 比特币合约是什么

比特币合同，其中提及的合同是非标准交易，可以改写Bitoind、BitCoin钱包代码或使用bitcoinj来生成非标准交易，虽然正常钱包不会接受这些非标准交易，但是有矿池如Eligius.st接受非标准交易并且可以打入到块链中，这样有些钱包软件就能正常处理。另一种含义是指进行比特币合约交易，就像股市中期货交易那样，可以开多和开空。

❻ 比特币交割合约有什么规则吗

到交割时间，系统以最近一小时BTC(LTC等其他币种)美元指数的算术平均值作为交割价对所有开仓的当周合约进行交割平仓。交割平仓后产生的盈亏部分加入已实现盈亏。

❼ 比特币合约怎么交易

类似期货合约，是由BitStar提出的一种交易方式。
比特币虚拟合约的杠杆表现为法币收益层面的杠杆稳定：投入100美元，所能得到的收益=100美元*比特币的涨跌幅*固定的杠杆倍数。
假设当前价格为500USD/BTC，某投资者以当前价格买入一个BTC，本金为500USD,此时投资者可以做多50张BTC虚拟合约。此时若BTC价格上涨至750美元，涨幅50%，投资者合约收益为3.3333个BTC，按照当前价格卖出后可以获得2500美元，收益为其本金投入的5倍。若价格上涨至1000美元，合约收益为5BTC，卖出后的美元收入为5000美元，为其美元收入的10倍。无论价格怎么波动，合约的杠杆都十分稳定，从而方便商家用合约进行套保，也便于普通投资者管理其仓位。

❽ 比特币交易会被判刑吗

比特币交易不被判刑。
民众个人自己炒币并不犯法，和买卖股票的性质是一致的，不会被判刑的。但是如果是利用倒卖比特币之名，进行洗钱、诈骗等违法犯罪活动的，就会涉嫌相应的刑事犯罪，比如赌博等等，受到刑事处罚。
【拓展资料】
央行、互金办等各部委发的文件都没有定性民众个人炒币违法，但若是在国内开设交易平台、组织群众炒币，就涉嫌非法集资诈骗了。所以，很多从业者在国外设立法律主体，这样可以规避中国法律限制。
2017年9月4日，中国人民银行、工信部和银监会等多个部门发布公告，禁止从事代币发行融资活动；交易平台不得从事法定货币与代币、“虚拟货币”相互之间的兑换业务，不得买卖或作为中央对手方买卖代币或“虚拟货币”，不得为代币或“虚拟货币”提供定价、信息中介等服务。
依据我国目前的规定，对于比特币的买卖、交易，是禁止了各金融机构、交易平台的买卖行为，违反者会被下架APP、吊销营业执照，但并未禁止个人的投资行为，投资者对其行为自担风险。对于买卖比特币这种行为，本身是不涉及犯罪，不涉及刑事处罚这些，但是可能涉及行政处罚。
比特币交易是7*24小时交易，只有在每周五16:00(UTC+8)结算或交割期间会中断交易。合约在交割前最后10分钟，只能平仓，不能开仓。
交易类型分为两类，开仓和平仓。开仓和平仓，又分买入和卖出两个方向：买入开多(看涨)是指当用户对指数看多、看涨时，新买入一定数量的某种合约。进行“买入开多”操作，撮合成功后将增加多头仓位。卖出平多(多单平仓)是指用户对未来指数行情不再看涨而补回的卖出合约，与当前持有的买入合约对冲抵消退出市场。进行“卖出平多”操作，撮合成功后将减少多头仓位。
卖出开空(看跌)是指当用户对指数看空、看跌时，新卖出一定数量的某种合约。进行“卖出开空”操作，撮合成功后将增加空头仓位。
买入平空(空单平仓)是指用户对未来指数行情不再看跌而补回的买入合约，与当前持有的卖出合约对冲抵消退出市场。进行“买入平空”操作，撮合成功后将减少空头仓位。

❾ 比特币合约真的能赚钱吗

比特币合约是可以赚钱的，不过要作对方向，一旦做错了，亏欠也是很快的，建议谨慎投资，祝好运。

❿ 比特币合约交易后正负含手续费吗

人们宣传比特币的时候常常会讲：“可以向各种张三李四免费转账。”其实不一定，有时还是需要手续费的。

2013年，一个比特币的价格为20美元。2017年，转一个比特币要花20美元。
手续费的目的一来为激励矿工不辍挖矿，二来以维护比特币网络安全（维稳费？）。早期矿工的挖矿底薪比较高，每个区块50枚BTC，但是创世块之后每出21万个块（每四年），底薪减半。所有2100万枚比特币都被挖出后，由交易费充当挖矿奖励。

关于减半算法的代码，长这样。

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
// Force block reward to zero when right shift is undefined.
if (halvings >= 64)
return 0;

CAmount nSubsidy = 50 * COIN;
// Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
nSubsidy >>= halvings;
return nSubsidy;
}
奖励金在2012年当时候从50比特币减半为25比特币，2016年从25比特币减半为12.5b比特币。大概2020年就会再减半为6.25比特币。

那么，怎么确定什么时候需要掏交易费、掏多少合适？

比特币网络规则内置交易费用结构，取决于系统推荐的（标准）客户端。我们拿比特币核心（bitcoin core）打个比方，看看转帐时，需要过哪几道：

1.花哪些币？

客户端首先确定用哪些币来完成支付。

好比， Bob给Alice转了2枚比特币；Rose又给Alice转了3枚比特币，那么两次转账金额会单独地趴在Alice的钱包中，直到被花出去。（注意：两笔转账不会“自动合并”为5BTC）。

那么，经过一阵子，钱包中会积累不同金额的比特币，所以才说，得考虑下用哪些做支付。

可用金额叫做交易的“输入”，最终发送金额（包括退回到钱包的找零）称为“输出”。

2.避免过于零碎的支付

若交易“输出”（包括找零）小于0.01BTC，则收取0.0001BTC的手续费。 “选币”时，算法会尽量避开那些找零金额低于0.01BTC的币。

3.老币、大额交易优先

若发送的比特币金额过小，或币龄过低，则很有可能被收取费用。每笔交易都有优先级，由“输入”的年龄、金额和交易输入数量决定。

具体而言就是，客户端将每一笔输入的金额与该输入在区块中存在的时间相乘，将所有乘法结果相加再除以交易字节大小。

若结果小于0.576，则收取交易费。所以，有一堆零碎且/或很新的“输入”，又不想掏手续费可以这么干，交易里加上一个大额且较老的输入即可。这里边，比较关键的就是这个金额x年龄的平均值。

如果在第3步中某交易本来是收费的，但随着时间流逝，又有新的区块不断产生，那么原先交易中“输入”年龄也随之增长，进一步提升了交易的优先级，因此第3步中产生的费用可能会被免除。

4.“称重”收费（按每千字节收费）

最后，客户端检查交易的字节长度。长度取决于输入和输出的数量，大致可用下列公式计算：

148 * 输入数量 + 34 * 输出数量 + 10

若长度小于10000字节且在第3步中有足够高的优先级，那么这笔交易最终被确认为免费，反之需收费，费用默认为0.0001BTC/千字节（不足1k的按1k计算）。可自行在客户端相关设置中更改交易费数额。低于0.0001BTC的设置不会生效。新费用设置生效后，将覆盖步骤2中的费用，两者不叠加。

接着说几个例子：

1. 过犹不及

说：Alice钱包中趴着两笔“输入”，金额分别为1BTC和2BTC。然后Alice想买杯2.99999BTC的咖啡。这时就不存在选币这一说了，因为有且只有两笔输入，都用上才够咖啡钱，剩下0.00001BTC找零。注意，步骤2提到：若交易“输出”（包括找零）小于0.01BTC，则收取0.0001BTC的手续费。说明，咖啡交易将被征收0.0001BTC的手续费。结果就是交易会失败，因为Alice手里的余额不足。

这就有意思了：Alice手上有3BTC，但是没法买2.99999BTC的咖啡。Alice可以把3BTC全部付给商家以避免手续费（假设第3步的费用为0），但有些商家可能会要求支付准确的金额。

2. 人品爆发

说：Alice人品大爆发，在某赔率64000的赌博游戏中，用0.02BTC拨来1280BTC。网站支付奖金时，自己钱包里并没有可丁可卯的1280BTC，于是只能用各种零碎输入（含找零）来各种凑。

最后，这笔凑出来的奖金大小是51203字节。是这样，交易大小超过10000字节，费用增至0.0005BTC/每千字节（其实早期的交易费用就是0.0005，后来变成0.0001的），那么，这里的手续费就是52*0.0005 = 0.026BTC。比玩家的本儿还高。

当然，还是比PayPal转便宜。

注：使用Paypal手续费为 4.4% + 0.3 USD/每笔。

好比，1280刀转账，1280*4.4% + 0.3 = 56.62 刀

注意：最后缴纳的手续费是0.0286BTC，有可能是因为没有使用（推荐）标准客户端来创建交易，然后这个客户端在计算费用时有点小问题。

这是个真事儿，见：Bitcoin Transaction

3. 机关算尽，不掏钱

有种交易踏在免费的悬崖边上，大小为9999字节，堪称交易费躲闪之王。全部输入中只有一个是1聪（satoshi，即比特币最小单位，0.000 000 01 BTC = 1 satoshi，以致敬比特币创始人Satoshi Nakamoto）；但是有另一个大额输入拉高了优先级，免除交易费用。

必须支付手续费吗？

捎带脚说一句，手续费其实不是强制的。有些矿工并没有很在意这些收费标准，也会把一些没有手续费的交易记录到区块中。使用标准客户端的“原始交易”（raw transactions）界面能创建手续费低于标准费用的交易，而且，还是有可能人品爆发的被矿工打包入块的。

❶ What is Bitcoin contract trading

1. Definition of contract
A futures contract is where the buyer agrees to receive an asset at a specific price after a specified period of time, and the seller agrees to An agreement to deliver an asset at a specific price after a specified period of time.
The price that both parties agree to use for future transactions is called the futures price. The specified date on which both parties must enter into a transaction in the future is called the settlement date or delivery date. The asset that both parties agree to exchange is called the “subject.”
If an investor takes a position in the market by purchasing a futures contract (i.e. agreeing to buy at a future date), it is called a long position or going long on futures. On the contrary, if the position taken by the investor is to sell a futures contract (that is, to bear the contractual responsibility to sell in the future), it is called a short position or going short on futures.

2. The origin of the contract
Futures contracts refer to standardized contracts formulated by futures exchanges that stipulate the delivery of a certain quantity and quality of commodities at a specific time and place in the future. It is the object of futures trading. Futures trading participants transfer price risks and obtain risk returns by buying and selling futures contracts on futures exchanges.
Futures contracts are developed on the basis of spot contracts and spot forward contracts, but their most essential difference lies in the standardization of futures contract terms. For futures contracts traded in the futures market, terms such as the quantity, quality grade and delivery grade of the subject matter, as well as premium and discount standards for substitutes, delivery location, delivery month and other terms are all standardized, making futures contracts universal.
In futures contracts, only the futures price is the only variable, which is generated through open bidding on the exchange.

3. Classification of Contracts
Digital currency contracts can be divided into: delivery contracts and perpetual contracts.
(1) Delivery contract: Futures delivery refers to the process in which the parties to the transaction settle the expired open positions through the transfer of ownership of the commodities contained in the futures contract when the futures contract expires.
(2) Perpetual contract: It is a derivative similar to leveraged spot trading. It is a digital currency contract product settled in BTC, USDT and other currencies. Investors can gain profits from rising digital currency prices by buying long, or gain profits from falling digital currency prices by selling short.
Perpetual contracts are somewhat different from traditional futures: they have no expiration time, so there is no limit on the holding time. In order to ensure tracking of the underlying price index, the perpetual contract uses a funding fee mechanism to ensure that its price closely follows the price of the underlying asset.

❷What does BTC Contract Exchange mean?

Virtual contracts are the buying and selling objects of contract transactions. They are formulated uniformly by contract exchanges and stipulate the delivery of a certain amount at a specific time. Standardized contracts for commodities.

During the contract transaction process, both parties to the transaction will obtain their respective rights and obligations. For example, the buyer and seller of a contract purchase at a price of US$1,000.If 100 contracts with an underlying price of 100 USD are traded, then the buyer of the contract has the right and obligation to buy 10,000 USD of Bitcoin at a price of 1,000 USD/btc on a certain day of the month. Similarly, the seller He also obtained the right and obligation to sell 10,000 USD of Bitcoin at a price of 1,000 USD/btc on a certain day of the month. A contract that represents the rights and obligations of buyers and sellers is a virtual contract.
Most of the time, investors do not actually fulfill the rights and obligations of the contract, but earn profits by trading this contract before the contract takes effect, that is, before the delivery date.
The BBKX exchange is my first recommendation for the BTC contract exchange. I didn’t know how to trade before and did it by myself. It’s not easy to do this without my own trading system. The market changes too fast. This platform has launched a contract follow-up function. You can follow some mature traders to follow orders, saving you the trouble of doing it yourself and no longer having to keep track of the market.

About BBKX
1. One-sentence introduction
BBKX.COM was registered and established in Singapore in 2019. It has received the cooperation of Du Jun (former co-founder of Huobi and founder of Golden Finance) ) joint strategic investment with on-chain funds.
2. Six major advantages
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The platform business includes spot trading (more than 170 currency pairs have been launched), ETF area, contract trading, option trading, and legal currency trading , to meet the needs of most users. All users can enjoy a share of the handling fees generated by invitations and recommendations. They can only upgrade and not downgrade, and the rebates are permanently valid.
②Transaction fee, the lowest on the entire network
Spot trading with zero threshold for currency pairs enjoys 0.05% transaction fee, suitable for high-frequency trading, grid strategies, hedging arbitrage and other strategies.
③ Worried about liquidation? Just buy ETFs!
The advantages of ETFs include: one-click long and short, triple leverage, no margin required, and never liquidated positions. Suitable for unilateral market conditions and not suitable for long-term holding.
The management fee is one thousand one times each, which is far lower than the market.
④Hundred times contract, both “positive and negative”
Maximum 100 times leverage perpetual contract, supports forward and reverse direction, small price difference, and sufficient depth! There are multiple trading courses every week that you can learn for free, and you can also use simulated contracts for training.
⑤Follow orders with one click and enjoy the results
Not technical? No time to watch the market? The more you do, the more you lose? Follow orders with one click, automatically synchronize transactions with the contract master, and truly enjoy the results!
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The platform's original options trading, interact with tens of thousands of people to guess the rise and fall, make money faster and easier!

❸ What are the rules of Bitcoin delivery contracts that you need to pay attention to?

The next week contract and quarterly contract will participate in settlement. After settlement, the profit and loss will be recalculated based on the settlement base price. After settlement, it can be transferred The profit part will be transferred out; if the user closes the position before settlement, all the margin required to open the position after settlement and the realized profit and loss can be transferred outVirtual contract account.

❹ What does Bitcoin contract trading mean?

Contract trading is the collective name for Bitcoin Litecoin futures contract trading.
In June 2013, 796 Exchange took the lead in the Bitcoin industry to develop the Bitcoin weekly delivery standard futures-T+0 two-way trading virtual commodity pledged barter contract (contract transaction).
The emergence of contract trading ended the previous history that Bitcoin could not be shorted, and opened the prelude to the development and prosperity of the Bitcoin derivatives market.

Warm reminder: The above information is for reference only and does not represent any advice.

Response time: 2020-12-16. For the latest business changes, please refer to the official website of Ping An Bank.
[I know about Ping An Bank] Want to know more? Come and see "I Know Ping An Bank"~
https://b.pingan.com.cn/paim/iknow/index.html

❺ What is a Bitcoin Contract

Bitcoin contract, the contract mentioned in it is a non-standard transaction. You can rewrite Bitoind, BitCoin wallet code or use bitcoinj to generate non-standard transactions. Although normal wallets will not accept these non-standard transactions, there are mining pools such as Eligius .st accepts non-standard transactions and can be entered into the blockchain so that some wallet software can handle them normally. Another meaning refers to trading Bitcoin contracts, just like futures trading in the stock market, where you can open long and short positions.

❻ Are there any rules for Bitcoin delivery contracts?

At the delivery time, the system will use the arithmetic average of the BTC (LTC and other currencies) US dollar index in the last hour as the delivery price pair All open positions for the current week will be delivered and closed. The profit and loss generated after the delivery and closing of the position are added to the realized profit and loss.

❼ How to trade Bitcoin contracts

Similar to futures contracts, it is a trading method proposed by BitStar.
The leverage of the Bitcoin virtual contract is the stability of the leverage at the level of legal currency income: if you invest $100, the income you can get = $100 * the rise and fall of Bitcoin * fixed leverage multiple.
Suppose the current price is 500USD/BTC, and an investor buys a BTC at the current price with a principal of 500USD. At this time, the investor can go long 50 BTC virtual contracts. At this time, if the price of BTC rises to US$750, an increase of 50%, the investor's contract income will be 3.3333 BTC. After selling at the current price, he can get US$2,500, which is 5 times his principal investment. If the price rises to US$1,000, the contract income is 5 BTC, and the US dollar income after selling is US$5,000, which is 10 times its US dollar income. No matter how the price fluctuates, the leverage of the contract is very stable, which makes it convenient for merchants to use contracts for hedging and for ordinary investors to manage theirposition.

❽ Will Bitcoin transactions be punished?

Bitcoin transactions are not punishable.
It is not illegal for individuals to speculate in currencies on their own. It is consistent with the nature of buying and selling stocks and will not be punished. However, if you use the name of reselling Bitcoin to conduct illegal and criminal activities such as money laundering and fraud, you will be suspected of corresponding criminal offenses, such as gambling, etc., and be subject to criminal penalties.
[Extended Information]
Documents issued by the central bank, the Mutual Finance Office and other ministries and commissions do not define it as illegal for individuals to speculate in currencies. However, if a trading platform is opened in the country and people are organized to speculate in currencies, it is suspected of illegal fund-raising fraud. Therefore, many practitioners set up legal entities abroad to avoid Chinese legal restrictions.
On September 4, 2017, the People's Bank of China, the Ministry of Industry and Information Technology, the China Banking Regulatory Commission and other departments issued announcements prohibiting token issuance and financing activities; trading platforms are not allowed to engage in transactions between legal currency, tokens, and "virtual currencies" In the exchange business, you are not allowed to buy or sell tokens or "virtual currencies" or act as a central counterparty, and you are not allowed to provide pricing, information intermediary and other services for tokens or "virtual currencies".
According to my country's current regulations, the buying and selling of Bitcoin is prohibited by financial institutions and trading platforms. Violators will have their APP removed from the shelves and their business licenses revoked. However, individual investment activities are not prohibited. , investors bear their own risks for their actions. The act of buying and selling Bitcoin does not involve crime or criminal penalties, but it may involve administrative penalties.
Bitcoin trading is a 7*24-hour transaction, and transactions will only be interrupted during settlement or delivery at 16:00 (UTC+8) every Friday. In the last 10 minutes before delivery of a contract, positions can only be closed but not opened.
Transaction types are divided into two categories, opening and closing positions. Opening and closing positions are divided into two directions: buying and selling: buying and opening long (bullish) means that when the user is bullish or bullish on the index, he or she will buy a certain number of new contracts. Carry out the "buy and open long" operation, and the long position will be increased after successful matching. Selling to close long positions (closing long positions) refers to the selling contracts that users cover when they are no longer bullish on the future index market, and offset with the currently held buying contracts to offset the exit from the market. Perform the "sell to close long" operation, and the long position will be reduced after successful matching.
Selling short (bearish) means that when the user is bearish or bearish on the index, he or she will newly sell a certain number of certain contracts. Carry out the "sell and open short" operation, and the short position will be increased after the matching is successful.
Buy closing (short closing) refers to the buying contract that the user is no longer bearish about in the future index market and covers it, which is offset by the currently held selling contract and exits the market. Carry out the "buy and close short" operation, and the short position will be reduced after the matching is successful.

❾ Can Bitcoin contracts really make money?

Bitcoin contracts can make money, but you have to do it in the right direction. Once you make a mistake, you will lose money very quickly. It is recommended to invest carefully. ,good luck.

❿ Does the plus or minus after a Bitcoin contract transaction include a handling fee?

People promote thanWhen talking about Bitcoin, people often say: "You can transfer money to various people for free." In fact, this is not necessarily the case. Sometimes there is still a handling fee.

In 2013, the price of one Bitcoin was $20. In 2017, it cost $20 to transfer one Bitcoin.
The purpose of the handling fee is firstly to encourage miners to keep mining, and secondly to maintain the security of the Bitcoin network (stability maintenance fee?). The basic mining salary for early miners was relatively high, 50 BTC per block, but after the genesis block, every 210,000 blocks (every four years), the basic salary was halved. After all 21 million Bitcoins are mined, transaction fees serve as mining rewards.

The code for the halving algorithm looks like this.

CAmount GetBlockSubsidy(int nHeight, const Consensus::Params& consensusParams)
{
int halvings = nHeight / consensusParams.nSubsidyHalvingInterval;
// Force block reward to zero when right shift is undefined.
if (halvings >= 64)
return 0;

CAmount nSubsidy = 50 * COIN;
// Subsidy is cut in half every 210,000 blocks which will occur approximately every 4 years.
nSubsidy >>= halvings;
return nSubsidy;
}
The reward was halved from 50 Bitcoins in 2012 It is 25 Bitcoins, which was halved from 25 Bitcoins to 12.5b Bitcoins in 2016. It will probably be halved again in 2020 to 6.25 Bitcoins.

So, how to determine when to pay transaction fees and how much to pay?

The transaction fee structure is built into the Bitcoin network rules and depends on the (standard) client recommended by the system. Let’s use Bitcoin Core as an analogy to see what steps are required when transferring money:

1. Which coins should be spent?

The client first determines which coins to use to complete the payment.

For example, Bob gives Alice2 Bitcoins are transferred; Rose transfers 3 Bitcoins to Alice, then the amounts of the two transfers will be left alone in Alice's wallet until they are spent. (Note: The two transfers will not be "automatically combined" into 5BTC).

So, after a while, different amounts of Bitcoin will accumulate in the wallet, so I say, you have to consider which ones to use for payment.

The available amount is called the "input" of the transaction, and the final amount sent (including the change returned to the wallet) is called the "output".

2. Avoid too fragmentary payments

If the transaction “output” (including change) is less than 0.01BTC, a handling fee of 0.0001BTC will be charged. When "selecting coins", the algorithm will try to avoid coins whose change amount is less than 0.01 BTC.

3. Old coins and large-amount transactions are given priority

If the amount of Bitcoin sent is too small, or the currency age is too low, fees are likely to be charged. Each transaction has a priority, determined by the age of the "input", the amount, and the number of transaction inputs.

Specifically, the client multiplies the amount of each input by the time the input exists in the block, adds all the multiplication results and divides them by the transaction byte size.

If the result is less than 0.576, a transaction fee will be charged. Therefore, if you have a bunch of fragmented and/or very new "inputs" and don't want to pay handling fees, you can just add a large and older input to the transaction. Here, the more critical thing is the average amount x age.

If a transaction in step 3 was originally charged, but as time goes by, new blocks continue to be generated, then the "input" age in the original transaction will also increase, and further The transaction's priority is increased so fees incurred in step 3 may be waived.

4. "Weighing" charges (charged per kilobyte)

Finally, the client checks the byte length of the transaction. The length depends on the number of inputs and outputs, and can be roughly calculated by the following formula:

148 * number of inputs + 34 * number of outputs + 10

If the length is less than 10,000 bytes and in If there is a high enough priority in step 3, then the transaction will eventually be confirmed as free, otherwise it will be charged. The default fee is 0.0001BTC/kilobyte (less than 1k will be calculated as 1k). You can change the transaction fee amount by yourself in the relevant settings of the client. Settings below 0.0001BTC will not take effect. After the new fee setting takes effect, it will overwrite the fee in step 2, and the two will not overlap.

Let’s talk about a few examples:

1. Too much is not enough

Say: There are two sums in Alice’s wallet"Enter", the amounts are 1BTC and 2BTC respectively. Then Alice wants to buy a cup of coffee for 2.99999 BTC. At this time, there is no such thing as currency selection, because there are only two inputs, and both are used to get enough coffee money, leaving 0.00001 BTC as change. Note that step 2 mentions: If the transaction "output" (including change) is less than 0.01BTC, a handling fee of 0.0001BTC will be charged. Note that coffee transactions will be charged a handling fee of 0.0001 BTC. The result is that the transaction will fail because Alice does not have enough balance.

This is interesting: Alice has 3 BTC, but she cannot buy 2.99999 BTC of coffee. Alice can pay all 3 BTC to the merchant to avoid the handling fee (assuming the fee in step 3 is 0), but some merchants may require the exact amount to be paid.

2. Character explosion

Say: Alice’s character exploded. In a gambling game with odds of 64,000, she allocated 1,280 BTC with 0.02 BTC. When the website paid the bonus, I did not have the 1,280 BTC in my wallet, so I could only use various bits and pieces (including change) to make up for it.

In the end, the size of the bonus was 51203 bytes. That's right, if the transaction size exceeds 10,000 bytes, the fee increases to 0.0005 BTC/per kilobyte (in fact, the early transaction fee was 0.0005, and later became 0.0001), then the handling fee here is 52*0.0005 = 0.026 BTC. Higher than the player's book.

Of course, it is still cheaper than PayPal.

Note: The handling fee for using Paypal is 4.4% + 0.3 USD/per transaction.

For example, for a transfer of 1,280 knives, 1,280*4.4% + 0.3 = 56.62 knives

Note: The final handling fee paid is 0.0286 BTC, which may be because it was not used (recommended ) standard client to create transactions, and then this client has a little problem calculating fees.

This is a real thing, see: Bitcoin Transaction

3. Don’t pay until all the mechanisms are exhausted

There is a kind of transaction that is free On the edge of the cliff, with a size of 9999 bytes, it is the king of transaction fee dodges. Only one of all inputs is 1 satoshi (satoshi, the smallest unit of Bitcoin, 0.000 000 01 BTC = 1 satoshi, in tribute to Satoshi Nakamoto, the founder of Bitcoin); but there is another large input that raises the priority and exempts the transaction cost.

Do I have to pay a handling fee?

As a side note, the handling fee is actually not mandatory. Some miners do not pay much attention to these charging standards and will record some transactions without fees into blocks. Using the "raw transactions" interface of the standard client can create transactions with lower fees than the standard fee, and it is still possible to be included in the block by miners due to bad character.