$KORU
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警告避免杠杆工具,利用EWY期权IV错配进行套利。
对 $KORU 零敞口。我一直警告人们不要触碰3倍杠杆工具,原因正是如此。 我确实持有 $EWY 的看涨期权,主要是作为隐含波动率(IV)套利交易,因为做市商(MM)将其错误定价为32%的IV。 股价每日上下波动7-13%是严重错误定价的证据,并应受益于维加(Vega)扩张。
英文原文
Zero exposure to $KORU. I've been warning people not to touch 3x leveraged instruments for this exact reason. I do have $EWY long calls mainly as a IV arbitrage play as MM's mispriced this at 32% IV. Stock moving up and down 7-13% a day is evidence they heavily mispriced it, and should benefit from vega expansion.
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警告$KORU三倍杠杆在剧烈回调中的风险。
@iverson3 $KORU 的玩法……直到它失效为止。如果市场出现剧烈回调,3倍杠杆带来的损失将不堪设想。
英文原文
@iverson3 $KORU works… until it doesn’t. 3x leverage on a steep correction if there is one won’t look pretty.
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$EWY期权IV被低估,杠杆衍生品将推高波动率,看涨期权或受益。
$EWY 看起来即将变得更加波动。 做市商可能没有正确地将跳跃期权隐含波动率(IV)定价,因为 IV 可能会扩张至 55% 以上。 有两个原因源于未实现(但即将到来)的波动性。 - 10 倍杠杆的三星/SK 海力士通过去中心化金融(DeFi) 已经出现,因为它们开始产能爬坡。 如果规模变得很大,这会在期货(如 $EWY)的清算和对冲上产生大量的未实现波动性。 $EWY 由一半的 SK 海力士/三星组成,而韩国指数本身已经非常波动。 - 三星和 SK 海力士的 2 倍杠杆单只股票 ETF 即将到来 2026 年 1 月,韩国监管机构正式宣布允许国内 2 倍杠杆单只股票 ETF。 同样,这增加了未实现的波动性。 但就目前的期权 IV 定价而言,$EWY 的波动幅度相当极端。 如果非要打个比方,它的百分比波动范围肯定大于 $MRVL(IV 为 55-56%,而 $EWY 仍为 41%)。 三星的对应物可能是 $MU(约 70%),SK 海力士更接近 $SNDK(91%),但可能在 70-80% 范围内。 而且……韩国指数基本上就是 SK 海力士和三星。 随着三星/SK 海力士开始从存储超级周期中重新评级,这种波动性可能会成为新常态。但做市商可能仍然在使用广义自回归条件异方差(GARCH) 模型或基于长期平均值(当时指数完全平坦)的波动率预测投影。 来自 10 倍杠杆衍生品的数量将仅仅为这些个股的对手方和做市商创造更多的对冲/波动性 -> 这会滞后地反映在 $EWY 的定价中。 简而言之:随着做市商未能正确定价 IV 和未实现波动性,$EWY 看涨期权可能会从 Vega 扩张中受益。
英文原文
$EWY looks like it's about to get more volatile. Market makers might not be pricing in leap option IV correctly as IV may expand past 55%. Two reasons due to unrealized (but upcoming) volatility. - 10X leveraged Samsung / Sk Hynix through Defi are here as they begin ramp-up. This creates a great amount of unrealized volatility from liquidations and hedging on futures like $EWY if this ends up becoming large. $EWY is half Sk Hynix / Samsung, and the South Korean index is already really volatile. - 2x leveraged single-stock ETFs for Samsung and SK Hynix are coming In January 2026, South Korean regulators officially announced they will permit domestic 2x leveraged single-stock ETFs. Again, this just adds to unrealized volatility. But as it stands right now regarding option IV pricing. $EWY moves pretty extreme amounts. If I had to give a comparison, it definitely moves in greater % ranges than $MRVL, which sits at 55-56% IV (while $EWY is 41% still). Samsung's equivalent is probably $MU (70%-ish), Sk Hynix is closer to $SNDK (91%) but likely in 70-80% range. And... South Korea's index is basically just Sk Hynix and Samsung. This volatility would likely be the new norm as Samsung/SK Hynix begin their re-rating from the memory supercycle. But MMs are still probably using garchr models or volatility forecasting projections against long-term averages (where index was completely flat) And the amount of leveraged derivatives from 10x will just create more hedging/volatility on these individual stocks from counterparties and market makers -> that gets priced in late to $EWY. TLDR: $EWY calls likely benefit from vega expansion as MMs aren't pricing in IV and unrealized volatility correctly.
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利用韩国指数期权定价错误,做多$EWY看涨期权以捕捉存储周期波动率扩张。
指数下跌-2.46%。整个期权链全线飘红+13-20%。 这就是当你发现做市商在期权链中存在定价错误时会发生的情况。 话虽如此,隐含波动率(IV)回升至更合理的38-39%,但个别组件(SK海力士、三星)的波动率可能仍有几个百分点的偏差。 (引用内容翻译): 我发布在“淋浴思考”频道的交易思路: 韩国指数波动率套利并利用布莱克-斯科尔斯模型。 $EWY 看涨期权似乎存在定价错误。 这是贝莱德旗下的韩国指数,主要由存储芯片(三星电子、SK海力士)构成。 尽管该指数被定价为普通指数的隐含波动率,但个股每日波动2-5%+,且1年涨幅达136.25%。 三星波动剧烈。SK海力士波动剧烈(例如预估65%-80%)。 但通过指数组合后的定价远低于低贝塔值的 $GOOGL (37.33%) 和 $AMZN (39.12%),隐含波动率仅约32%。 我观察 $EWY 一段时间,它确实看起来波动很大。 至于定价,我猜测做市商(MM)基于历史平均值(5-10年)定价隐含波动率,当时韩国指数完全持平。他们预期两年后的看涨期权会回归均值。 但这种波动率应成为新常态,因为市场正在定价新的存储超级周期(例如 $TSM 从30% IV升至46.2% IV)。 看涨期权将从三星+SK海力士带动指数上涨中受益。 主要好处是你能获得 $KORU 无法提供的 Vega 扩张。 你也无法像美国个股那样获得这种期权做市商的压盘效应,因为这是韩国国家指数且期限较长。 简而言之:个别组件SK海力士+三星具有高波动性。 它们基本占指数的一半,但指数期权以低波动率定价,或许是因为基于过去5-10年的历史数据。 看涨期权将从未正确定价的 Vega 扩张中受益,因为做市商的前瞻波动率估计过于锚定于历史已实现波动率,而过去5-10年 $EWY 的波动率很低。
英文原文
Index down -2.46%. The entire option chain green +13-20%. This is what happens when when you find mispricing in option chains by market makers. That being said it’s a more respectable 38-39% IV, but maybe few percent off (SK Hynix, Samsung) individual components volatility still.
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利用$EWY期权定价错误,做多看涨期权以捕捉存储超级周期带来的维加扩张。
我发布在“淋浴思考”频道的交易思路: 韩国指数波动率套利,并利用布莱克-斯科尔斯模型(Black-Scholes models)。 $EWY 的看涨期权似乎定价错误。 这是贝莱德(Blackrock)的韩国指数,主要由存储芯片(三星电子、SK海力士)构成。 该指数每日波动2-5%以上,尽管隐含波动率(IV)定价像普通指数,但过去一年仍上涨了136.25%。 三星波动大。SK海力士波动也大(例如估算65%-80%)。 但通过指数组合后的定价远低于低贝塔值的 $GOOGL (37.33%) 和 $AMZN (39.12%),约为32%的IV。 我观察 $EWY 一段时间,它确实看起来很波动。 至于定价,我猜测做市商(MMs)基于历史平均值(5-10年)定价IV,当时韩国指数完全持平。他们预期两年后的看涨期权会均值回归。 但这种波动应成为新常态,因为市场正在定价新的存储超级周期(例如 $TSM 从30% IV升至46.2% IV)。 看涨期权将从三星+SK海力士带动指数中受益。 主要好处是你无法从 $KORU 获得的维加(Vega)扩张。 你也无法像美国个股那样获得期权做市商的压盘效应,因为这是韩国的国家指数且期限较长。 简而言之:个别成分股SK海力士+三星具有高波动性。 它们基本上占指数的一半,但指数期权以低波动性定价,可能是因为基于5-10年的历史数据。 看涨期权将从维加扩张中受益,因为做市商的前瞻性波动率估算过于锚定于历史已实现波动率,而过去5-10年 $EWY 的历史波动率较低。
英文原文
Trade idea that I published to my shower thoughts channel: Korean Index volatility arbitrage and taking advantage of Black-Scholes models. $EWY long options seem mispriced. This is Blackrock's Korea Index, which is majority memory (Samsung Electronics, Sk Hynix). The stock swings 2-5+% a day, and is up 136.25% 1Y, despite priced like a normal index IV. Samsung is volatile. SK Hynix is volatile (eg. 65% - 80% est). But the combination of the two through the index is priced way less than both low beta $GOOGL (37.33%) and $AMZN (39.12%) at ~32% IV. I've been watching $EWY for a bit and it does look volatile. As for pricing my guess is MMs priced in IV based on historical averages (5-10 years), where the Korean index was completely flat. And were expecting calls 2 years out to revert to the mean. But this volatility should be the new norm as markets price in the new memory supercycle (eg. $TSM went from 30% IV to 46.2% IV). Long calls should benefit from both Samsung + Sk Hynix carrying the index. And the main benefit is vega expansion that you won't get from $KORU. You also can't get this option MM pinning like individual US stocks since this is Korea's national index and long term. TLDR: Individual components SK Hynix + Samsung are highly volatile. They're basically half of the index, but options in index are priced with low volatility, perhaps due to historical 5-10 year data. Long calls benefit from vega expansion that weren't priced in correctly as MM forward vol estimates are anchored too heavily on historical realized vol, which was low for $EWY over the past 5-10 years
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不建议买3倍杠杆ETF,建议用保证金替代。
无法推荐像 $KORU 这样的3倍杠杆ETF,因为随着时间推移存在波动率衰减(volatility decay)以及黑天鹅事件(black swan events)的风险。 看看周五白银暴跌33%的情况就知道了。不是说韩国ETF也会发生这种事,但风险是非零的。 如果你想要更高的杠杆,直接在 $EWY 或 $FLKR 上使用保证金(margin)即可。
英文原文
Can't recommend 3x leveraged ETFs like $KORU because of volatility decay over time and black swan events. Just look at what happened with Silver on Friday crashing 33%. Not saying it's going to happen with Korean ETFs, but the risk is nonzero. Just use margin on $EWY or $FLKR if you want more leverage.