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熊市会放大任何一个可能的利空,这次轮到stETH。 # M n# c! ]( n% W1 ~) `+ L
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。 , P3 ? n+ v2 i Z# A. a* @/ g
01 5 F6 |) S- s$ M. ~) E6 ~
stETH不会是下一个UST # I5 p8 \. J" S% ~1 d
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。 1 `* M- r8 b W/ 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。 & G$ y; n) B* y! W% k
02
$ W5 `9 y2 @7 N! Z gstETH不是GBTC
% j; o8 X( ]' `4 j4 C V1 S7 }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。
; h6 b1 X& t. m% K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。 6 o4 u! W8 T. m9 z v+ J
03 , b5 \4 d" x6 z
stETH价格不一定与ETH挂钩 ! A$ ]+ _ M& `9 R y7 K
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。 % o3 Z3 G( b Q: S4 x
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。 5 c/ B" ~/ {+ i6 V# w- b% ?
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stETH存在套利机会 4 I0 E8 M2 M0 w' R6 Z* _; x% F
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。 . s5 `& _2 G- D( g+ T- L9 G" }
因为其中存在套利:
$ s0 P5 ^' e0 z! S! a% ]6 c; P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。
7 U j* h: j' O; Z当stETH的赎回开放后,市场有一个奏效的套利方式: 1 Z+ F! S+ s1 H) p
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。
+ f6 h7 V+ I& B* V$ s3 f05
' \. u" Y, R) u2 k4 V即使合并,赎回仍要等6-12个月 $ ~1 h0 h# b, w7 f3 H7 g
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。
" C' ^4 i; _. L# {8 d$ ~06 & d# N. U4 R* a3 n/ @
影响stETH价格的四大因素
/ }- S9 A: H3 ~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:
7 l6 h A" a6 H$ k B: ~3 o6 W( p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
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( {( d# C3 X- m1 l: Y, R0 ?引发stETH清算的原因
* I+ @ W. I! Y+ k6 k6 h+ [; P" G杠杆清算风险是当前引发恐慌的最大原因。
4 p9 a, h( O% f5 H1 L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。 / E. f1 Z' B1 O5 ?3 f w) D
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。 6 x! k0 K1 R2 Y0 @ y( k

/ N: y6 ]7 B+ X8 B& RCelsius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。
+ Z, ?& H& h8 Q) B1 F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。 ! t4 |* R6 i4 g! ?
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。 1 e! E$ G8 E, a0 e
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)。 3 N- Y; u$ Z; r V3 H
08
3 ~" K& M5 c% f3-5%的负溢价是正常的 / F$ @ P6 K4 V; E/ X7 c( Q9 [4 l
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? $ d" T( K7 z2 [4 E {4 c
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。
! D" f" w. N$ v4 X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- N! S3 h+ _. r
来源:金色财经 |
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