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要做空比特幣,可以采取這5種辦法

要做空比特幣,可以采取這5種辦法

Jeff John Roberts 2017-09-21
普通人想做空并不容易,不過(guò)通過(guò)這5種方法還是可以實(shí)現(xiàn)的。

上周摩根大通的首席執(zhí)行官痛斥比特幣為“騙局”,“比荷蘭郁金香泡沫還惡劣。”如果你同意他的說(shuō)法,可能會(huì)想到做空。摩根大通高管抨擊以后,比特幣交易價(jià)確實(shí)出現(xiàn)下挫,雖然價(jià)格較今年1月仍漲了四倍(本周二價(jià)格為每個(gè)3850美元)。沒(méi)準(zhǔn),做空比特幣的機(jī)會(huì)真來(lái)了。

怎樣才能做空全球人氣最高的數(shù)字貨幣——比特幣?由于(和其他資產(chǎn)相比)比特幣相關(guān)的金融產(chǎn)品比較少,而且某些手段只有專業(yè)投資者才會(huì)操作,普通人想做空并不容易。不過(guò)采用以下五種方法還是可以實(shí)現(xiàn)的。

1)通過(guò)保證金交易買(mǎi)入比特幣,然后拋售

通過(guò)Coinbase旗下的GDAX之類(lèi)比特幣交易平臺(tái),用戶可以通過(guò)保證金買(mǎi)入。雖然保證金買(mǎi)入交易通常用于加杠桿做多某項(xiàng)資產(chǎn),但也可以通過(guò)保證金賣(mài)出比特幣,之后再平倉(cāng)。如果比特幣價(jià)格在交易期間下跌,就可以獲利。

用這種方法需要注意幾點(diǎn)。一是GDAX要求,如果美國(guó)公民希望利用保證金交易,其個(gè)人可支配投資金額至少得有500萬(wàn)美元(總部位于舊金山的交易平臺(tái)Kraken看來(lái)并沒(méi)有相關(guān)限制)。二是保證金交易的持倉(cāng)時(shí)間相對(duì)較短,比如GDAX允許持倉(cāng)最多27天。這意味著,做空客戶賭的是比特幣短期內(nèi)會(huì)下跌,否則將不得不回補(bǔ)空單,彌補(bǔ)比特幣漲價(jià)的損失。

2)做空比特幣ETF

今年美國(guó)證券交易委員會(huì)拒絕了雙胞胎文克萊沃斯兄弟推出比特幣交易所交易基金(ETF)的請(qǐng)求。若這一申請(qǐng)獲批,該ETF的股份就可以在大型交易所交易,普通投資者能像做空普通的個(gè)股一樣,通過(guò)個(gè)人投資賬戶做空比特幣ETF。

SEC正在重新考慮之前的決定。在此期間,唯一一個(gè)類(lèi)似股票可供做空的選擇是ETF Bitcoin Investment Trust。顧名思義,Bitcoin Investment Trust是一只對(duì)標(biāo)比特幣的信托基金,交易代碼為GBTC,投資者可以買(mǎi)賣(mài)份額。

這種方法也有要注意的事項(xiàng)。一是GBTC還沒(méi)能登陸大交易所,只能在場(chǎng)外交易市場(chǎng)(OTC)(所謂“粉單”市場(chǎng))交易,和尚未滿足上市標(biāo)準(zhǔn)的證券一樣買(mǎi)賣(mài)。投資者通過(guò)TD Ameritrade之類(lèi)大經(jīng)紀(jì)商可以購(gòu)買(mǎi)OTC交易的證券,但不能做空,所以做空GBTC難度更大。最后要指出,GBTC的交易價(jià)已經(jīng)和比特幣價(jià)格(基本上GBTC已經(jīng)變成單純的投資工具)脫鉤,所以做空GBTC并不完全等于做空比特幣。

3)在期權(quán)交易所LedgerX購(gòu)買(mǎi)比特幣的衍生品(實(shí)際推出后)

經(jīng)驗(yàn)豐富的投資者可能希望借道期權(quán)和其他衍生品做空比特幣,尤其是買(mǎi)入“看跌期權(quán)”,日后以當(dāng)前的高價(jià)賣(mài)出比特幣。如果比特幣交易價(jià)開(kāi)始下跌,看跌期權(quán)就會(huì)增值,持有者就可以獲利。

目前市面上還沒(méi)有這種衍生品合約,但應(yīng)該很快問(wèn)世。今年7月,一家名叫LedgerX的公司獲得美國(guó)商品期貨交易委員會(huì)(CFTC)批準(zhǔn)成立清算所,處理虛擬數(shù)字貨幣看跌和看漲期權(quán)、掉期合約和其他各類(lèi)衍生品合約的交易和清算。預(yù)計(jì)LedgerX很快就會(huì)開(kāi)展業(yè)務(wù)。

(更新:位于香港的Bitmex一直是處理比特幣相關(guān)衍生品交易的平臺(tái)。要注意的是,該平臺(tái)的所有交易都通過(guò)比特幣進(jìn)行,包括計(jì)算盈虧,所以在做空比特幣以前必須先買(mǎi)入比特幣。)

4)請(qǐng)高盛幫你做空

這種方法不太適合一般投資者,我是在咨詢一些很有錢(qián)的風(fēng)投基金時(shí)聽(tīng)說(shuō)的。最近有一次吃晚飯時(shí)我問(wèn)風(fēng)投大佬們,既沒(méi)有衍生品也沒(méi)有其他常用的交易手段時(shí)怎樣做空比特幣。

他們的答案是,高盛之類(lèi)投行可以幫你交易空單,做空任何標(biāo)的。(大家還記得電影《大空頭》的主人公請(qǐng)銀行幫忙做空美國(guó)房產(chǎn)市場(chǎng)嗎?)因此,如果相信比特幣是個(gè)泡沫,也許可以定制合約押注比特幣崩盤(pán)。

5)做空追蹤比特幣價(jià)格的個(gè)股

風(fēng)險(xiǎn)資本家、數(shù)字貨幣興起之初的投資者尼克希爾·卡爾加特基認(rèn)為,加密數(shù)字貨幣市場(chǎng)如今發(fā)展遇阻,因?yàn)榇笸婕胰鄙龠M(jìn)行對(duì)沖的策略。對(duì)此他提出了一種做空比特幣的方法:挑選一些追隨比特幣價(jià)格而動(dòng)的個(gè)股建立投資組合,然后逐個(gè)做空。但卡爾加特基也承認(rèn)將相關(guān)股票挑出來(lái)不太容易。

卡爾加特基不是唯一一個(gè)提出這種方式的。英國(guó)《金融時(shí)代》的博客Alphaville最近將芯片制造商英偉達(dá)列為做空比特幣的標(biāo)的,因?yàn)橛ミ_(dá)的產(chǎn)品在挖礦加密數(shù)字貨幣的行當(dāng)中十分受歡迎。然而英偉達(dá)還有其他領(lǐng)域的產(chǎn)品,簡(jiǎn)單將其當(dāng)成比特幣龍頭股有點(diǎn)簡(jiǎn)單粗暴。

歸根結(jié)底,普通投資者想做空比特幣的話現(xiàn)在還沒(méi)什么簡(jiǎn)單的方法。如果堅(jiān)定看空,自然能找到做空的方法。如果沒(méi)那么篤定,或許要等到比特幣ETF或者衍生品上市再做打算了。(財(cái)富中文網(wǎng))

譯者:Pessy

審稿:夏林

The CEO of J.P. Morgan this week called bitcoin a "fraud" and "worse than tulip bulbs." If you agree, it may be tempting to bet against the digital currency. Sure, the price has taken a beating of late but it's still up 400% from January ($3,850 as of Thursday) —offering an opportunity for bitcoin bears.

So how exactly do you short bitcoin? It's not easy due to a lack of financial products (relative to other assets) and because some tactics are restricted to professional investors. That said, here are five approaches for bears to bet against the world's most popular digital currency.

1) Buy it on margin and then sell it

Trading platforms like Coinbase-owned GDAX allow you to buy on margin. While margin purchases typically involve adding leverage to go long on an asset, it's also possible to go short by selling bitcoins on margin, and then closing out the position later on. If the price of bitcoins drops during this time, you'll profit on the trade.

There are a couple caveats. One is that GDAX requires U.S. residents to have at least $5 million if they want to trade on margin. (San Francisco-based rival Kraken doesn't appear to have this restriction). The other is that customers can only leave margin positions open for a relatively short period of time—27 days in the case of GDAX—which means those betting on a fall in bitcoin need it to tumble in short order, or else they will have to cover the price increase.

2) Short shares of the Bitcoin Investment Trust

The SEC this year rejected an application by the Winkelvoss twins to launch a bitcoin ETF. The shares of the ETF would have traded on a major exchange, and let ordinary investors use their brokerage accounts to short them in the same way as an ordinary stock.

The SEC is reconsidering the decision but, in the meantime, the only stock-like alternative is the Bitcoin Investment Trust. As its name suggests, this is a trust that holds bitcoin and lets people trade its shares under the ticker GBTC.

Once again, there are catches. One is that GBTC is not eligible to trade on major exchanges, so instead it's listed on OTC Markets (aka the "pink sheets") alongside other misfit toys of the equities world. Big brokerages like TD Ameritrade do let investors buy OTC-listed stocks—but not short them, which makes it harder to bet against GBTC. Finally, the price of Bitcoin Trust shares have become untethered to the price of bitcoin (it's basically broken as an investment vehicle) so a short bet is not exactly a bet on bitcoin itself.

3) Buy derivatives on LedgerX (when they arrive)

Experienced investors may wish to wade into the world of options and other derivatives as a way to be bearish on bitcoin. Specifically, they could buy a "put option" to sell bitcoin at its current high-flying price. If the price of bitcoin starts dropping, the option will increase in value and its owner can pocket a profit.

These derivative contracts are not available yet, but they should be soon. In July, the Commodity Futures Trading Commission approved a bid by a firm called LedgerX to open a clearinghouse for crypto-currency puts, calls, swaps and all sorts of other exotic contracts. LedgerX is expected to be open for business in the near future.

(Update: There's also Hong Kong-based Bitmex, which is a long-time purveyor of bitcoin-related derivatives. One catch: all transactions, as well as profits and losses, are conducted in bitcoin—meaning you must buy bitcoin before you can short it).

4) Ask Goldman Sachs to write you a contract

This approach is admittedly not for Joe Blow investors. It came up when I asked a few wealthy VCs at a recent dinner how they would short bitcoin given the current absence of derivatives and other common trading strategies.

Their answer was that investment banks like Goldman will write you a short position on anything you like. (Remember that scene in The Big Short when the protagonists ask banks to help them short the U.S. housing market?). So someone who believes bitcoin is a bubble could create a bespoke contract to bet on just that outcome.

5) Pick stocks that track bitcoin prices—and short them

Nikhil Kalghatgi, a venture capitalist and early digital currency investor, believes the cryptocurrency market is hindered right now by a shortage of ways for big investors to deploy hedging strategies. In response, he suggests one way to bet against bitcoin is to create a basket of stocks that move with the price of bitcoin and short them accordingly. Alas, Kalghatgi says he is not confident enough to pick what those stocks would be.

He's not the only one to propose this idea. The Financial Times'Alphavilleblog recently singled out shares of the chip maker Nvidia, whose products are hugely popular with cryptocurrency miners, as a potential proxy for those looking to short bitcoin. But Nvidia makes products for all sorts of other industries, so using it as a bellwether for bitcoin would be a crude metric.

***

The bottom line is that, for now at least, there is no simple way for ordinary investors to short bitcoin. Determined bears can and will find ways to do so—but everyone else might want to hold out for a bitcoin ETF or derivatives to arrive.

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