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熊市会放大任何一个可能的利空,这次轮到stETH。 8 @7 i. i" O% S( }
从上周五开始,市场上关于stETH脱钩清算的恐慌情绪持续蔓延,这其中很大一部分源于对stETH的不了解。对此,本文整理出关于stETH的8个常识,以降低大量误解带来的不必要影响。
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* X3 H" Z _& O) {: `" _2 X3 FstETH不会是下一个UST 8 K) S' G; S) \$ \% ]) k8 A
stETH是质押在以太坊信标链上的ETH,且完全由信标链上的ETH1:1支持,即1枚stETH=1枚质押中的ETH。 5 G+ x ]2 j$ x y7 ~/ ?5 x) R
当以太坊合并完成,且信标链开放提现功能时,用户持有1枚stETH可以兑换1枚ETH,因此任何将它与UST等抵押不足的稳定币的比较都是错误的。
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stETH不是GBTC + T9 c# i ^+ F: w! ]
stETH是一种ERC20代币,在不断发展的DeFi生态系统中有很高的实用性。 % t: ~( m1 g3 a2 l7 ~0 u' P
它自带一个原生的收益率,这是你单独持有ETH所不能获取的。市场里有很多人都愿意为此承担套利风险。 $ E2 Y! B* O: C3 P( o2 `2 K
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stETH价格不一定与ETH挂钩
3 i( y- ?7 C9 ]" BstETH与ETH并没有一个固定的挂钩率,无论二级市场的估值如何,它都会继续被质押。
, d/ W" `8 U" u' m现在能在二级市场上将stETH换成ETH只是为了方便,但同时你也会得到市场对它的估价。 + m7 [) i4 t) V0 ~; c
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stETH存在套利机会 9 q$ ?- r v9 _/ @5 [: E9 a
一般来说,只要存款没有上限,stETH就不会以高于1ETH的价格交易。 6 L+ y$ w3 i% ?' u0 Y; K U
因为其中存在套利:
4 _& l1 `' {, ]* p5 o) ?( H如果1stETH=1.05ETH,那么我可以将1ETH存入Lido,得到1stETH,在二级市场以1.05ETH的价格出售,获利0.05ETH,这种方式也会推低stETH的价格。
+ S" e9 H( a# g+ r当stETH的赎回开放后,市场有一个奏效的套利方式: - F' A! {3 i1 O6 ^9 S
如果stETH以0.95ETH交易,那么我可以用0.95ETH买入1stETH,然后将其赎回1ETH,获得0.05ETH的利润,这种方式会推高stETH的价格。 2 l8 g$ p& V7 L& p+ B# O' T- L
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即使合并,赎回仍要等6-12个月 6 V9 a$ T0 d: J j: T" N' N
需要注意的是,以太坊合并之后,需要等待状态转换的分叉,这可能需要6-12个月,此时的stETH仍然无法从信标链中赎回ETH。赎回开放后,信标链上还有一个赎回队列,一次可以取消质押的ETH数量是有限制的。 0 \4 W* i \ x. e: K
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影响stETH价格的四大因素 3 l I. B% ?4 l& Z+ J/ _8 {6 S* M
有多种原因使stETH暂时高于/低于其抵押品价值,其中包括但不限于:
, c, p! y7 k+ W流动性溢价风险 Lido协议风险 信标链推迟风险 杠杆玩家清算风险 , }( ?, n: k; [0 A5 k& d8 r
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引发stETH清算的原因 2 |! g" }0 c1 ?! Q
杠杆清算风险是当前引发恐慌的最大原因。 ' u& ?5 P0 A# n% M
前面提过,stETH是一个ERC20代币,可以在DeFi生态系统中用作抵押品,人们将stETH作为抵押品存入Aave,借入ETH,存入Lido以获取stETH,然后再重复这一过程。 6 }3 z* U9 P3 D0 w8 F- X; b+ U' y
因此,如果人们继续在二级市场上卖出stETH,这些杠杆头寸可能会被清算,从而导致更大的清算级联。目前较大的做市商/操纵者已经退出,但仍有一些留在这里。 ! M c q! |! p I$ m' p( b

R2 S. C! p" I. @2 p. wCelsius可能会也可能不会遇到流动性问题,但他们持有大量的stETH被用作借入稳定币的抵押品。如果出售,这肯定会导致stETH的二级市场价格下降。
* F& a7 x. a; E& i) K8 B a所有这一切的另一面是,无论二级市场如何评价stETH,stETH仍然被信标链上的ETH以1:1的比例支持。 9 _) h: W) `0 Z% U2 r) c
根据您的时间偏好和风险承受能力,在低价时入手stETH会提高一定的收益水平。
4 I* j% w+ l- Q8 @- ]例如,如果1stETH的交易价格为0.70ETH(也就是30%的折扣),并且以太坊抵押收益率保持4%的APR。在以太坊成功合并且开放赎回功能的这两年里,你将获得38%的APR,而不是普通质押者8%的收益率(以太坊质押不会自动产生复利)。 / E' V) `$ v: i7 X4 \4 O& r
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3-5%的负溢价是正常的 ; O( _" d) A3 |9 e6 v. `" U/ I
那么,是否值得为了收益率而去冒Lido漏洞和流动性不足的风险?
9 u/ p6 I/ A& O+ }, f不是每个人都能接受,但某些套利者一定会做。虽然清算级联很惨,stETH的二级市场价格暂时不会是1:1ETH,但这并不会导致死亡螺旋。
% _; H* h4 N, h我认为,等这波恐慌过去后,stETH可能仍会以低于抵押品价值的价格交易,可能是3-5%的负溢价,这在很大程度上取决于市场情绪。但无论如何,信标链将继续,DeFi会继续,Lido也会继续。
s J/ M! p* V来源:金色财经 |
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