S-tier dad. 5.0 star Uber passenger rating.

Joined February 2012
333 Photos and videos
Josh Mindlin retweeted
We also have the first commercial pretzel bakery as well juliussturgis.com
Everyone always talking about “talent density” in Silicon Valley when we really should be talking about how 80% of pretzels in America come from a small region of Pennsylvania
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Josh Mindlin retweeted
Trivia: These are stock quotes from July 1865, just after the end of the civil war. Without googling or asking AI, how many currently traded stocks can you identify that are directly or indirectly descended from them?
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Josh Mindlin retweeted
We'll be updating projections throughout the tournament, usually once per day but sometimes with intraday updates like this one. And yes, we even account for red cards and player suspensions. You can find everything here: natesilver.net/p/world-cup-2…
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As a kid in central PA we took a lot school field trips to snack factories.
Everyone always talking about “talent density” in Silicon Valley when we really should be talking about how 80% of pretzels in America come from a small region of Pennsylvania
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Josh Mindlin retweeted
Replying to @TheStalwart
This is like when a student tells me they didn't use AI on their homework. Skill issue.
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RT @MacroCharts: Something to watch…
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Josh Mindlin retweeted
My third year on the floor was one of my most memorable and satisfying of my career. Why? I made $63k. I did not blow out. I paid my bills. I paid my tithe to the gubment. In my mind, I was a success. Great mental capital boost year for me! @AnthonyCrudele
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Josh Mindlin retweeted
Admin bloat is a big problem and addressing this issue should be the main focus of University leaders as they consider other measures that directly hurt our core mission of research and teaching. At MIT, for example, faculty grew only 9% from 1985-2023. Administrative staff grew 189%. arxiv.org/pdf/2412.15378
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Josh Mindlin retweeted
Today was the worst day on SPX this year, the worst day in 164 trading days, and the 2nd worst day in the past year. It was the 8th worst day in the past decade.
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Josh Mindlin retweeted
There's so much to say about this chart. it shows to very related measures: the ratio of the single stock VIX (VIXEQ) to the $VIX versus SPX 1m implied correlation. The higher the ratio the lower the implied correl and you can see we are an absolute extreme. You might say the market is "complacent" by way of the record low IC. Agree the sense that there is a disregard for the potential for a macro shock that hits all assets at once. Said shock would move the current level down and to the right in the chart. But what's really driving the ratio up and IC down is the level of single stock implied volatility. The number of stocks enveloped in a "spot up, vol up" dynamic is significant. Thus, the VIXEQ is higher now than at the peak of the market shock in late March! When a stock surges, investors who want to stay long but are worried the rug may be pulled out start looking at call options. They allow you to walk away if things reverse. That demand forces implied vol higher. From the option seller's standpoint, stocks are exhibiting huge one-day "up shocks" that are both difficult and costly to hedge. That gets priced in. I am reposting my Tweet here on "SK Hijinks" because it' may be the strongest example of the feedback loop between price, implied vol and the overlay of short gamma products. I think we are getting closer to a tipping point and there's a sharp, tradable reversal forthcoming. x.com/Alpha_Ex_LLC/status/20…
the SK Hynix Hijinks continues... the 2x daily leveraged beast, ticker 7709 out of South Korea may have been back in the options market to get delta exposure. I can't say for sure, but here are the potential tracks: a 37k lot of the June 11th 1,400,000 call traded on the underlying stock today. that's a 90 delta call option, consistent with the lev ETF's need to buy delta. the implied vol is outrageously high as shown in the chart lower left. the bid/offer is giant as well. from a vol perspective, buying a 90 delta call is the equivalent of buying a 10 delta put. would you think twice about selling a 10 delta put on a stock that is up 84% in a month? you'd probably ask the buyer for a large premium, esp when that buyer was forced to buy the option. we saw the same in $MSTR in Nov'24. the open interest in June 11 expiry is north of 500k options across the 1,200,000, 1,400,000 and 1,500,000 strikes. the open interest ratio is 25x calls to puts. I don't think I've ever seen that before. the daily notional volume in the lev ETF is roughly 5-7x what it was at the start of the year. it feels like something could break here. zooming out, KOSPI2 is an a giant "spot up, vol up" period. the Kospi is up 108% YTD and its 1m implied vol has doubled from 55 to 110. SK Hynix and Samsung are 50% of the index.
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Josh Mindlin retweeted
Kids trading with each other in class 5 of the Investment Beginning Series we did this past Wednesday
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Josh Mindlin retweeted
This is stunning. Personal savings rate April 2025: 5.5% Personal savings rate April 2026: 2.6% That's a sharp plunge. It underscores how squeezed Americans are right now with higher prices and incomes not keeping up. Maybe you can explain some of this away by Baby Boomers retiring, but not all of it.
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Josh Mindlin retweeted
Short-ish rant: factor rotation, factor timing, factor horoscopes, skibidi toilet regression and many other quantitative malfeasances originate from quantitative "researchers" (both on the buy and sell side) whose incentive was to raise their status (and comp) by capturing the attention of investors. Because of the Bullshit Asymmetry Principle, dislodging these misconceptions is 10x harder than creating them. Ideally, incentive misalignments should be solved with contracts. But also, like in many professions, an ethical oath would help. First rule: "I won't bullshit the portfolio manager and the business owner alike even if doing so would benefit me". Feel free to like anonymously, I won't out you.
Once in a while I hear “Factor x is a bit weak in month y” and I die a little inside
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Josh Mindlin retweeted
this is an interesting article. I see things the same way as the author. @QTRResearch "The Iran war may end sooner than many expect, not because global leaders suddenly become responsible, but because the bond market is forcing them into a corner. Financial instability is becoming the greater threat. Policymakers now face an impossible balancing act between inflation, debt servicing costs, economic slowdown, and geopolitical conflict". open.substack.com/pub/quotht…

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Josh Mindlin retweeted
Done. Let me know if you have any more requests.
Replying to @OddStats
Need to use a log scale!
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Josh Mindlin retweeted
This has gotta be one of the best endorsements for the podcast ever. Tell your CEO to go on Odd Lots
CHIPS needed a team that could sit across the table from large, well-capitalized semiconductor firms and negotiate deals that both protected the taxpayer and delivered on national security objectives. A lot of the program success was built on the backs of government operators and national security professionals. Equally important, however, were the private sector hires that the program brought onboard. This week in Factory Settings, I took a look at how the program was able to effectively recruit private sector talent. A few of the most salient points: - Program leaders’ decision to go on the Odd Lots podcast was referenced by several colleagues, with non-traditional recruiting pathways serving as critical for getting team members - CHIPS gave significant empowerment to junior colleagues, allowing them deal reps well above their private sector counterparts - The program had a tangible, positive impact on the career trajectories of the private sector talent that came through the program Private sector talent isn't everything, and traditional government competencies are equally critical. Nevertheless, future industrial policy efforts would do well to make a concerted effort to get ex-financiers, operations professionals, and technologists working towards program success. Read here: factorysettings.org/p/a-chea…
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Josh Mindlin retweeted
I don't understand the grave dancing on QVR's downfall. It's tough to build any business and sad to watch a few bad months sink 5 years of hard work. I hope everyone there lands on their feet. I really don't get the pile-on against @bennpeifert personally. He's contributed tons of education to the discourse on options/volatility on this hellsite. You can dislike his politics/personal choices without cheering his downfall.
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Josh Mindlin retweeted
Intraday trend-following strategies are often presented as if the entry signal is the only thing that matters. In reality, a source of dispersion in performance can emerge from a far less discussed component: the exit policy. In our latest research piece, we take a simple ATR breakout model on SOXX and keep everything unchanged except for one design choice: how the trade is managed after entry. We test four distinct exit mechanisms: 1️⃣ Session Open 2️⃣ Session Midline 3️⃣ VWAP 4️⃣ PSAR What makes the experiment particularly interesting is that all four approaches are intuitive and logically defensible. Yet despite identical entries and identical position sizing, the realized outcomes diverge meaningfully across key stats. The deeper we went into the analysis, the clearer one point became: Once evaluation moves beyond a single metric, the idea of a universally “best” specification starts to break down surprisingly quickly. This naturally leads into one of the most underrated concepts in systematic trading, in our opinion: Ensembling. Rather than trying to predict which specification will dominate going forward, a more robust solution may simply be choosing not to choose. You can read the full research piece from the link in the first comment 👇 #SystematicTrading #QuantTrading #IntradayTrading #TrendFollowing #AlgoTrading #QuantitativeFinance #TradingResearch #CTA #PortfolioManagement #MomentumTrading
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Josh Mindlin retweeted
A fire alarm is going off and everyone is ignoring it.
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You’re kidding
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