Fly on the Wall with Shrub & Cloudbear

Why this Fly on the Wall — a new character in the Shrubverse

• Le Shrub: the first conversation since early May, prompted by his weekend piece introducing "a new character in the Shrubverse called Mum" — "I want to talk about all these regime shifts."
• The lineage: two years ago they called it the "golden age of grift," friends said it was an exaggeration, later agreed he had been "too conservative" — and then Bloomberg ran a cover on it, "which probably means that something bad is going to happen."

Pacification — passive investing, plus the mega-IPO addendum

• The conventional part: index membership brings "mechanical buying that just keeps your share price propped up," and leaving the index puts you "in no man's land."
• The addendum is the new bit: mega-IPOs are "effectively gaming the system" — mark the company up in the private market, list it into the index "at a stupid valuation," and let passive flows maintain that valuation. "Now we have like peak passive where we're getting like trillion dollar companies added to the index on IPOs, right? Like SpaceX."

Claudification — one model, one basket, one blow-up

• Le Shrub: people on Twitter "clearly asked Claude for… find me the bottleneck in photonics or the bottleneck in power or the bottleneck in memory," come back with the same names, "make new baskets and just buy the same crap."
• The casualty: Leopold Aschenbrenner's fund blowing up at 4× leverage is "a result of claudification" — imagine asking the model for the AI winners and losers "at four times leverage… wake me up once we reach AGI," then everyone sees the 10× track record and copies the same basket at the same leverage, "and they all blow up together, which is what happened." (The Bill Hwang comparison is theirs.)
• Paulo supplies the synthesis: "the passive or mechanical autopilot player… they're all doing the same thing and herding into the same stuff. And the active slash retail monkey is doing the same thing because they're asking Claude the same questions and coming back with the same baskets. So they're both herding." Le Shrub: "they think they're having alpha, but actually they're just doing momentum investing in a different word."

Claudification is early innings — and it is institutionalising

• The passive analogy: "I'm sure you were discussing passive investing 10 years ago… well, this is dumb, but it actually got dumber." Claudification is "early innings or maybe mid."
• Evidence: Interactive Brokers (IBKR) adding a ChatGPT portfolio function, and the Bloomberg headline that Millennium is working with Anthropic — "I'm sure other hedge funds will be doing the same… adds more concentration, adds the same models, there's no free will out of all these guys," while "the guys doing spreadsheets and talking to management will be just pulling their hair."

MUM — Markets Under Manipulation

• "Markets were always manipulated, like always. But Yellen took it a step further with the QRA and the bond market in October 2023 when she started actively managing the balance sheet as U.S. Treasury Secretary."
• Bessent extends it to everything: "an experienced operator… he's been trading the yen all his life… if Yellen did it with the bond market, well, I can do it with anything else." The enabling insight: "the market is becoming more short-termist and traders just follow price, and the price creates the narrative."

Hormuz — the energy crisis that never happened

• "We basically went to the biggest energy crisis of our lives. 20% of the world's energy flows were disrupted. And the best we got was a two-month disruption and oil spiking to 110 or something — below the 2008 level."
• "There were signs that there were suppression algos or active engagement by forces and players to suppress the oil market… a collaboration with social media reporters that shall not be named. It's a team effort."
• The yen removed the deniability: "they made it very explicit. They didn't try to hide it. They just literally said, we are coordinating with the Japanese treasury on the yen."

All three regimes do the same thing — suppress volatility, manufacture instability

• "Cloudification, pacification and MUM… they suppress volatility. And they can create trends and calm down the markets. But they also create like an underlying instability."
• "The only question is: does this instability ever lead to a Minsky moment?"

The discipline — recognise it, play along 90-99%, then watch for the loss of control

• Framed as money-making, not academia: "I don't want this to be like an academic paper." Step one: recognise it's there. Step two: play along with it most of the time — "and that might be 90%, 95%, or 99%."
• The base rates: "if you went against passive over the last 10 years, you got annihilated"; "if you went against Claude over the last two years, you only made money after Leopold blew up."
• Why MUM is the tradeable one: pacification and claudification are structural trends, "but with MUM, we have a lot of precedents when central banks lose control. That's more interesting… that's where you have to be tracking."

The three gauges — the yen, the US 10-year, and crude

• Yen: "above 160. They smashed it down to 156. Well, guess what? It's a 159 already. So they are kind of like not managing to convince people that they're effective."
• US 10-year: "that's kind of breaking out. We had a crappy NFP on Friday… but bonds didn't react to it. This never happened. You get a negative NFP and bonds are flat… they barely got like a short squeeze. So that's a bad sign."
• Crude: "if there was suppression in the oil price, it's going to be a bit like holding the ball underwater… at some point that ball is going to just explode upwards." Verdict: "that's why you should be watching these three things — the yen, the 10-year and crude — because that's going to be telling us if they lose control or not."

Long — but taking chips off the table into September

• Le Shrub: "I'm long the market, I'm long a bunch of stuff… but all these things, I'm just seeing them converge. And that's why I actually want to reduce risk into September."
• The seasonal: "people are always scared of the summer, but for me it's always like end of August, September that bad things happen… take chips off the table, give thanks, and sit back a bit until we get some clarity."
• He explicitly disclaims perma-bearishness — "as soon as Leopold blew up, I sent a piece saying… it's a situational awareness mean bottom, you got to buy the AI trade." The complaint is complacency: "I'm getting so much complacency."

News failure is the tell — 50 yards bought 156, and it's 159 already

• Paulo: asked what he'd look for to know MUM is "losing control of the stroller," he answers with Le Shrub's own evidence — "it's in news failure. It's in the market telling you."
• The meme: the Las Vegas pawn-shop line — "BOJ tosses 50 yards plus and Bessent is in the mix. And the best I can do is yen at 156. It's weak sauce." Positioning got wiped hard for very little price.

Oil traders as the new vigilantes — and the dog days of August

• Paulo's prior (2022): "oil traders are the new vigilantes," and 2026 would be the year they made "the plate-spinning, paper, fugazi, kick-the-can, print-some-money guys have a religious experience." Instead oil was the first market to be made mum — only in the last day or two are traders "getting the joke too," woken by that NFP and the failed intervention.
• The climbdown he tracks as a clown meme: "we will destroy your civilization… then we're going to do a deal and it's the best deal… the Straits are open… we don't need the Straits anyway" — "what is Bessent doing commenting about how many pipelines they're going to build and workarounds?" Le Shrub: "you want to babysit everything… be careful about everything they put their finger on."
• The coda that matters: if MUM were going to work, "it would work when markets are most illiquid and quiet because it takes the least amount of money. And here we are in the dog days of August, and the best you can do is yen at 159" — "with the bond market breaking out." "This is a problem."

AI capex has gone debt-funded — "zero buybacks… and they're borrowing on top" (AIBS)

• Le Shrub: "It's an AI CapEx-driven market… and the AI CapEx is debt-fueled. So you can't tell me that credit bond yields blowing up is bullish for the market." With "a ton of issuance coming in in September" and yields breaking out, "mum is not doing very well."
• Their coinage from last year: "AIBS — Artificial Intelligence Backed Securities. Or bullshit." The change this year is the funding mix: "don't forget the hyperscalers were funding everything with their own cash… and now this year, guess what? There's zero buybacks. They've used all their cash flows, and they're borrowing on top. So that's when it gets nasty."
• Paulo adds the last rung: "and even sprinkling some equity in there alongside, like Google… they're moving down the capital stack because the market's just not cooperating."

The credit tells — pop-and-fade, auction tails, and new-issue vs secondary

• Paulo, crediting Kevin Muir and others: for every $20bn of credit the investment-grade "air quote" issuers bring, the hedge funds who flip deals "have to start making room sooner rather than letting these IPOs and blocks run for 30 days, 90 days."
• The progression to watch: "if a big pop and run starts turning into a pop and fade, starts turning into a weak pop, starts turning into just break deal price on day one, you know that these guys have run out of room."
• The DCM twin: "you're seeing tails in the auction," and a credit-desk friend showed him "not just the concessions, but there is a tracker that the credit guys use… performance of new issues versus secondary." Since June/July, when momentum "started to go down the stairs and give back the whole year," existing bonds have traded very poorly ahead of the issuance — "that's the sign, like in ECM IPO world, that guys are starting to choke on the issuance."
• The reflexive loop: this much debt "requiring hedging in Treasury to back out the duration" feeds back into yields. And the structural point — "we've now tethered equities and credit together because it's the same handful of names that are now levered," names that are also "the key driver for the economy… half of economic growth is just data center construction and AI-related spend." Le Shrub: "that's where the Minsky moment always goes."

Rolling crack-ups — and "why didn't the carry trade blow up… so far"

• Paulo's sequence from earlier this year: "first gold and silver got caned. And literally within a week, the long-short factor pairs all blew up on the same day… their worst day in forever, I think since COVID. And then a few weeks later, the fixed income guys started to blow up."
• The name: "call it rolling crack-ups, in honour of our friend Kevin Muir for his rolling bubbles." Le Shrub's Simpsons gloss on the carry trade surviving the intervention: Bart asks "why didn't the carry trade blow up?" and Homer answers "why didn't the carry trade blow up… so far." Paulo: "it's only been 10 days."

The yen — and the Takaichi succession tail nobody priced

• The consensus he's fading: "most of the smart money guys I know, the FX vol dedicated guys… have been looking for the intervention… and they will send it back down to 150 or under because the yen is so cheap." But "the market's not confirming that prior, and there's a P&L loss that's underway already."
• The Saturday headline "that nobody saw": Katayama "is potentially going to be replaced next month by a guy that not a lot of people know, but who's very much a reflationist… firmly Takaichi, make Japan great again." (Names beyond Katayama/Takaichi are garbled in the capture and are not guessed here.)
• If confirmed — "everybody's looking downfield the same way towards expansionary fiscal and an accommodative BOJ… depreciation big time and a rate blowout in Japan that only a few alarmists have been warning about," while most are leaning into "Japan is too cheap and the money is going to come home because they're going to repatriate and sell America." FX vol is still near the lows despite the intervention. "It's not a base case for me, but… a lot of people having a holy shit kind of moment."
• The limit of the whole regime: "the cruiser of mum and pacification and claudification sits in front of like an aircraft carrier of policy… their mummification of the market only works if the primary trend is going their way and they can turn the boat."

The MUM trade — and gold and oil trading together again

• Le Shrub: the successor to the bond vigilantes is whoever "goes against mum" — and the expression is simple: "you buy oil calls, yen puts (as in the yen getting weaker), and bond puts or NASDAQ puts or gold calls. And that's your MUM trade."
• Paulo: "gold sold off when oil ripped… then gold was kind of chopping around 4,000 while oil fell down the stairs. And now just suddenly in the last week, gold woke up and so has oil. It's interesting that the two are trading together."
• The endgame if control is lost: commodities may sell off first, "but then they rip because people are going to be like, oh shit, what can I buy? I'm not going to buy the S&P… I'm not going to buy the yen. They're just going to buy hard assets because what else can they buy?"
• Le Shrub's caveat and his read on the operator: "they might just patch things together as they've been doing for a while… going back to 2023, Yellen was very masterful because she managed to patch things up in the October QRA. Whereas Bessent… he's got his finger on too many pies — he needs to deal with the oil and the 10-year and the yen at the same time."

Wizard of Oz — they're not even trying to hide it

• Paulo: "it took a while for people to figure out exactly what she was doing in terms of the draining of the RRP… several months before you started to see widespread commentary that this is how they were doing all the issuance without messing with the markets." (The capture garbles Yellen's name here.)
• The contrast: "the greatest trick the devil ever pulled was convincing the world he doesn't exist. The greatest thing that the plunge protection team ever did was convincing the people who see footprints in the market that they're crazy." Today's operators miss the joke: "you do not come out with a to-do list that says… sell 5 to 10 billion Japanese yen (JPY) just to make sure that the guy from the New York Post knows the ticker." Both: "Wizard of Oz, dude."

The NVIDIA whirlpool turned up to 11 — the one-name blow-off

• Paulo: "the euphoria has come out of the market, even with… Aschenbrenner—almost like a Cathie Wood character, she gets smoked first. But we haven't gotten the last buy-in."
• He returns to Le Shrub's two-year-old graphic of "the whirlpool… NVIDIA sucking all the world's liquidity into one name": "what if we take passive… and we turn it up to 11? And it becomes a narrowing into one name — you go from Mag 7 to there can be only one."
• Why NVDA specifically: "it's part of the semi-crowd… it missed out on the big whoosh of Korea and Samsung and Hynex and Micron. People have kind of forgotten about it. It's 8% of the S&P. It's the largest name again after Apple and Microsoft tried to grab the title briefly." A move there is "a pain trade for everybody" — value guys, growth guys "who can't overweight a name that's already 8% of bench," and long/short tech pods.
• The mechanics: "when you think of how little volume in relation to the market cap actually goes through these big names anymore because they're becoming so inelastic due to passive ownership… we could see like that kind of last 50% move in a month, and then it's over. But you need the imagination to be captured." Timing: "trade after the trade, like later in the fall maybe."

The Elon-Jensen circular deal — and the $10 trillion headline

• Le Shrub: "I think Elon is going to do a deal with Jensen soon" — reading the Twitter "bromance" (the ten-year-old first-GPU story both have been retelling) plus Tesla's latest results saying it will go exclusive with NVIDIA for GPUs. "You know what this is setting up for? The biggest circular deal of all times… I reckon we're going to see that in the next few months." Size: "it's not going to be $250 billion — it has to be like a trillion."
• Paulo's headline markers for cycle tops: in 2020-21 (NFTs, "pet rocks on Ethereum") it was "Elon Musk is the world's richest man, even for a day" — "it's like Masayoshi in 1999." Then "the world's first trillionaire" (Musk bringing SpaceX, xAI and Twitter back public). Now: "I kind of think this doesn't end until we see that headline of the world's first $10 trillion company."