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熊市会放大任何一个可能的利空,这次轮到stETH。
# t1 W9 u, x; g# z6 r6 i, ]% m( 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。 8 U, b8 }) D$ r. `* T
01 . ~% G4 a1 g& L' T9 `& Z4 s+ W, U
stETH不会是下一个UST $ Y" e+ R& d+ @/ i, x5 N
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。 & F+ ?# Z. N' {( w6 b d# y7 h: _7 u
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。
, m% c0 N a$ N9 G4 v02
6 n+ u9 e& p& ~2 I, sstETH不是GBTC
* o+ ]: V2 l, ]& |5 UstETH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。
# i# `4 k, j1 f; ?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。
3 [8 e! ^! z \8 p03 9 a, U2 q% X4 [+ {, q
stETH价格不一定与ETH挂钩 & T! A2 q% |6 n
stETH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。
3 b9 v8 q z9 U2 G! i9 Q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。
0 N5 P; N/ Y6 `/ D* u3 A) }$ H04
k, W Q7 r5 Y4 c# TstETH存在套利机会 " |' e O. i( p3 V
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。
( Q2 I, r: m- k% Z0 Q因为其中存在套利: 4 u% K$ ?% b0 E0 ]& B
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。
/ F, B# U% a) C0 f7 Q3 F- u当stETH的赎回开放后,市场有一个奏效的套利方式: ( |# R" v! o0 I& K$ P- F% Q
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。
1 c: v, S% E) _05 / {- M/ r N. S* I
即使合并,赎回仍要等6-12个月 $ n9 n" t X' \) \
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。 & p8 _2 Q* ]5 X$ @- z3 Y+ r. E
06 ; R5 v0 N# [0 Z! C" X
影响stETH价格的四大因素
. G: R' q u ^& K3 a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: 5 \: ~6 u! h9 Q q
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 6 Z/ e0 ?, C# f* d0 ]: A! p9 Y4 [- G
07 & j& ?% G a$ |% }
引发stETH清算的原因 5 K6 O- ], ?; H; {0 O* {! T. p% P
杠杆清算风险是当前引发恐慌的最大原因。 , ~2 Q. J& T) A) m: N' N
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。
8 L! Y4 L* f: Q9 T5 V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。 . A" y) T# N$ }$ I

7 V- Q2 {" h* W$ K) \1 S( GCelsius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。 ( x( E2 [9 o q' |/ t
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。 / ~2 r; o9 a4 H
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。 % v$ B4 [$ `& d: @2 Z1 B$ ]; m
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)。
/ x# ^" L y4 A3 _. U08
) p0 e3 L0 t! |1 I# x' z3-5%的负溢价是正常的
0 R) U t% Z( \+ [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?
% f7 ?: m* g* y" \- P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。
: `. v) N' h8 o" k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。
5 Q' _( _3 m$ K# I" {$ M5 u1 ]来源:金色财经 |
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