期货常见名词解释
余额 ：账户扣除保证金之后的剩余部分（不计算头寸的浮动盈亏）
净值(Networth) :就是你实际的资金，没有单存在的情况下净值=余额，，有单的情况下净值=余额+利息+手续费
已用保证金：初始保证金*下单手数
可用保证金(Available)：净值—已用保证金
保证金比例：可用保证金/净值
风险主要是要做好浮动盈亏的管理，很多人认为浮动盈亏不是真实的亏损，最后导致爆仓等。实际上，浮动盈亏也是账户真实的盈亏情况
strong
: The initial deposit* has a single-hand amount of the bond
strong
strong > has been used < / strong > : The risk of the available guarantee/net > interest
is primarily to manage the floating surplus and many believe that the floating surplus loss is not a real loss and eventually leads to the explosion.
交割:即期货合约双方同意在指定时间（交割日）按特定价格（期货价格）进行合约交割买卖(買家和賣家簽訂了一個協議，在2020年12月31日，以20,000的價格交割5個比特幣。在交割日當天，賣家有義務以20,000的價格賣出5個比特幣，無論當時比特幣的市場交易價格如何。同理，買家也有義務在那天以$20,000的價格買入5個比特幣，無論那時比特幣的市場交易價格如何。買賣雙方也可以選擇在交割日前平倉。)
爆仓:其实叫保证金不足，就是说可用保证金已经不够你再进行一手的交易所需保证金了。
保证金比例:就是你交易一手所需的保证金（每个公司不同）/账户余额*100%
也就是说保证金比例大于100%才能保证你还有余钱可以继续交易，否则就是所谓的“爆仓”了
Explosion : It's called an insufficient bond, which means that the deposit is no longer enough for you to make a single transaction.
Bond ratio : the bond you need to make a single-hand transaction (different from one company) / account balance* 100%
, which means that the bond is more than 100% in order to guarantee that you can continue trading, otherwise it is the so-called “blast warehouse”
维持保证金是交易者保留仓位所需要的最低保证金金额。在永续合约中，持有仓位所需要维持保证金基础值是仓位价值的百分之0.5(btc) 或 1 （ETH，EOS与XRP)， 保证金要求将随着风险限额的改变而提高或降低。
In a permanent contract, the deposit base is 0.5 (btc) or 1 (ETH, EOS and XRP) per cent of the value of the position, and the bond requirement will be increased or reduced as the risk limit changes.
反向永续合约，也称为币本位合约。建仓和最后交割，用的都是对应的标的产品。比如你要做多或做空BTC(ETH等)，则需要在合约账户中充入BTC(ETH等)，最终亏损或收益，也都以BTCETH等)结算。交易者需要先确认交易多少的USD，继而用本位币(比如BTC，ETH)来计算保证金，盈利和亏损。如果交易者要做比特币的合约交易，就必须用比特币作为本位币，如果是以太坊合约交易，那就需要持有以太坊。反向永续合约优点如下：
inverted contracts , also known as currency-based contracts. For warehousing and final delivery, it is the product of the corresponding subject matter. For example, if you want to do more or to empty BTC (ETH, etc.), then you need to fill BTC (ETH, etc.) in the contract account, with the final loss or gain, and BTCETH, etc. The traders need to confirm the number of USDs traded, and then use local currencies (e.g. BTC, ETH) to calculate the bond, profit and loss. If you want to make a Bitcoin contract transaction, then Bitcoin must be used as a local currency, and if you do it in a tako contract, then you need to hold the taco.
1.适合做多：因为计价单位与结算单位不同，以BTC/USDT举例，当用BTC作为保证金去做BTC的多单时，若最终赚了BTC，因价格上涨实际收益更多。若最终亏了BTC，因价格下跌实际收益亏损更多。当用BTC作为保证金去做空单时，无论最终赚了BTC还是亏了BTC，实际收益都会因价格下跌而受损。因此币本位比较适合在牛市做多。
1. More appropriate: When BTC is used as a bond for BTC, as the example of BTC/USDT, when BTC is used as the guarantee for BTC, then BTC is eventually used to earn more real gains from price increases. If the BTC is ultimately lost, the real gain is higher because the price falls. When BTC is used as a guarantee for BTC, the real gain is damaged by the price falls.
2.适合囤币：囤币者不太考虑资产价格，无论做多还是做空都可以赚币，因此适合对币价长期看好的囤币者。
2. Suitable for the hoarding of currency: Money hoarders do not consider the price of assets very much and can earn money either by doing more or by doing nothing, and are therefore suitable for the hoarders whose currency prices are long-term favourable.
如果是反向合约呢？
老王和小李签的合约就是：1个月后老王按照价值1W元的比特币买小李手中的1个比特币，但是由于比特币的币价波动比较大，因此反向合约最大的风险就在于币价波动带来的风险。
正向合约最大的优势在于持有USDT一种币可以开多币种合约，避免“贻误战机”，也没有管理多个币种的麻烦。
if it is a reverse contract? The old king and Xiao Li signed the contract: 1 month old king buys a bitcoin /strong > a bitcoin in Li's hand for worth >, but because bitcoin has a more volatile currency, the greatest risk of the reverse contract is the risk of currency price fluctuations . 定期合约要根据时间划分为周、月、季度来交割，而永续合约则没有交割时间限制，避免贻误行情。 The fixed-term contract is divided into weeks, months, and quarters, depending on the time, while the permanent contract is not time-bound and avoids malpractice. 用BTCUSD反向永续合约来举例 gives the example of BTCUSD inverted permanent contracts 如果交易者在8,000USD的价位买入10,000个合约，它其实意味着卖掉10,000USD，并买入同等价值的BTC(10,000/8000)，也就是1.25个BTC。 If the dealer buys 10,000 contracts at the price of 8,000 USDD, it actually means selling 10,000 USDD and buying BTC (10,000/8000) of equal value, or 1.25 BTCs. 假设交易者决定在12,500USD的价位全部平仓，这就意味着他买回价值10,000USD的合约，卖掉同等价值的BTC(10,000/12,500)，也就是相当于0.8个BTC。 Assuming that the dealer decided to level all the prices at 12,500 USDD, this meant that he bought back a contract worth 10,000 USD and sold BTC of equal value (10,000/12,500), equivalent to 0.8 BTCs. 多仓的盈亏=入场时的报价货币价值-出场时的报价货币价值=1.25BTC-0.8BTC=0.45BTC Mtsakura gains/losses = value of quotations at entry - value of quotations at presentation = 1.25 BTC-0.8 BTC = 0.45 BTC 如何计算反向永续合约起始保证金 calculates the inverse permanent contract start bond 例子： Example: public final static String JSON_KEY_PROFIT="Profit"; //盈亏 持仓的盈亏 盈亏列表的盈亏 账户的盈亏
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但是永续合约的手续费要比定期合约高，如果反复开仓的话，单手续费就是一大笔。普通的交割合约有一定的持仓时间，时间到了之后会强制平仓。
But the fee for the permanent contract is higher than for the fixed-term contract, and if it is opened repeatedly, the bill is quite high.
在杠杆交易中，起始保证金是交易者开仓时所需缴纳的保证金金额。计算起始保证金的方式是将 合约数量 / ( 委托价格 x 杠杆)。假设交易价值100BTC的合约时使用了100倍的杠杆，交易者仅需投入1BTC为起始保证金(1/100)。交易者可以通过风险限额表查看仓位所允许使用的最大杠杆。
in a leveraged transaction, where the start bond is the amount of bond to be paid by the dealer when he or she opens his or her warehouse. The start bond is calculated by using the number of contracts / (trust price x leverage). Assuming a 100-fold leverage is used in the transaction value of 100 BTC contracts, the dealer is required to invest only 1 BTC as the start bond (1/100).
交易者用50倍杠杆，在 8,000 USD 买入12,000 个 BTCUSD合约。
起始保证金=合约数量/（开仓价格 × 杠杆）=12,000 /（8,000×50）=0.03 BTC
什么是反向永续合约的维持保证金
维持保证金是交易者保留仓位所需要的最低保证金金额。在永续合约中，持有仓位所需要维持保证金基础值是仓位价值的百分之0.5(btc) 或 1 （ETH，EOS与XRP)， 保证金要求将随着风险限额的改变而提高或降低。
当逐仓的保证金金额低于维持保证金水平，该仓位会被强制平仓。
Start bond = number of contracts/(silo price x leverage) = 12,000/(8,000 x 50) = 0.03 BTC
for the maintenance of a counter-sustainability bond
is the minimum amount of security required by the trader to retain the position. In a permanent contract, holding a position requires the maintenance of 0.5 (btc) or 1 (ETH, EOS and XRP) as the value of the bond is 0.5 (btc) or 0.5 (ETH, EOS and XRP) per cent of the value of the position, and the bond requirement will increase or decrease as the risk limit changes.
When a warehouse-by-store bond is lower than the level of security, that position will be forced to level down the warehouse.
public final static String JSON_KEY_AVAILABLE="Available"; // 可用资金
public final static String JSON_KEY_BALANCE="Balance"; // 余额
public final static String JSON_KEY_NETWORTH="Networth"; // 净值
public final static String JSON_KEY_OCCUPY="Occupy"; // 占用保证金
public final static String JSON_KEY_MARGINLEVEL="MarginLevel"; // 按金水平
public final static String JSON_KEY_MARGINONOFF="MarginONOFF"; // 层级保证金开关
public final static String JSON_KEY_FORCELEVEL="ForceLevel"; // 强制平仓点
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