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熊市会放大任何一个可能的利空,这次轮到stETH。 # S4 K: B" W- ~) x( T5 ?
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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stETH不会是下一个UST
( E/ r! C6 r/ |) Q8 P, u7 WstETH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。
: w f9 \* [: q7 H7 w7 @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。 6 _, z7 W9 a4 m @- v* L6 A
02
+ T4 J/ T9 V/ `1 R2 G3 sstETH不是GBTC / V0 w& H w( @" Q0 R
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。
& k! e* D2 r5 A, S: t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。
5 ?! ]6 r7 w( j: X03
- s4 ]9 o4 d4 h; AstETH价格不一定与ETH挂钩
( ^& v8 F: t5 n2 k- q" G. ?3 W2 C* TstETH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。
& l0 x; \2 n" A9 v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。 : h% C2 |; z& [ k# `
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stETH存在套利机会
, P- ?) V2 r- S! P3 U" d2 G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。 4 t* f5 m& \+ Z N+ S' q9 M
因为其中存在套利:
! `9 O& l7 N/ A. Z6 J' {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。
. @+ u( U5 T6 S当stETH的赎回开放后,市场有一个奏效的套利方式:
4 U+ A, H: t3 U$ {7 C2 D1 F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。 8 y) Z% [! i; G9 ~( X; t) T( A
05
- Q* C- K* m- [6 `( Q+ [+ X$ \# P: i即使合并,赎回仍要等6-12个月
" Q3 @1 ^3 ]. @1 Q0 e, ]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。
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1 w% s8 h$ D+ w1 p" }2 o+ ?影响stETH价格的四大因素 8 I4 ]( D! x3 C. b8 z" J
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:
% ], Y& D R) d) k r# B! m2 R' V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 ! j$ F) z$ Y F" [9 b e& x, @ h
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引发stETH清算的原因 4 j' h$ U0 V4 I9 Q! J: L6 H
杠杆清算风险是当前引发恐慌的最大原因。 ! S* k% V8 d6 j- {! c
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。
) w( @2 W. g' J2 P$ X A: T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。 $ y) R8 x( g6 n2 Q

t* {0 T9 j8 S- @7 m4 KCelsius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。 * S5 o x4 P$ K# @5 d
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。
: ^8 x5 R1 P# G, F7 ?7 Z0 u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。
6 J! l7 [* Z3 H- V" {3 Z, i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)。 % G8 m' ?/ G. s
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3-5%的负溢价是正常的 ; J9 z5 t/ x O; ]2 D1 a( |
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?
6 c2 s: R% B7 W4 w3 l1 a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。
A0 O9 f* g+ ?7 m/ y" _/ Y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。 , G& F7 R# F9 {
来源:金色财经 |
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