Corey Hoffstein

Corey Hoffstein

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Deep dives on quant/factor/ETF portfolio construction.

People Debate Casting Despite Source Confirming Roles Unverified
SocialMay 10, 2026

People Debate Casting Despite Source Confirming Roles Unverified

What I love about Twitter is all the people retweeting this post talking about the ridiculous casting when, in the source itself, it says the roles are unconfirmed.

By Corey Hoffstein
Inside Multi-Asset Collateral: Risks and Vault Liquidations
SocialMay 8, 2026

Inside Multi-Asset Collateral: Risks and Vault Liquidations

A few months ago, I did an in-depth interview with @rf_extended about how multi-asset collateral works under the hood. Lots of moving pieces and considerations for managing the risk, especially when the vault is involved for liquidiations. https://t.co/5b6TOJ1lJR

By Corey Hoffstein
Variational’s RFQ DEX Tackles CLOB Cold‑Start Challenge
SocialApr 30, 2026

Variational’s RFQ DEX Tackles CLOB Cold‑Start Challenge

As a bystander, I'm pretty excited to watch this. The growth of RWAs on chain has been well documented, but it seems like solving the cold start problem for CLOBs can be a significant issue (especially with venue fragmentation). Variational's underlying model...

By Corey Hoffstein
Embrace Heat: Hot GPUs Power Turbo Boost
SocialApr 25, 2026

Embrace Heat: Hot GPUs Power Turbo Boost

You're trying to cool your GPUs? Cute. I let mine get extra hot so I can run a turbo charger.

By Corey Hoffstein
Client Exits Led to 24% Outperformance and 62% AUM Growth
SocialApr 24, 2026

Client Exits Led to 24% Outperformance and 62% AUM Growth

last april, during the tariff tantrum, equity + trend fell -25% vs S&P 500's -16%. a client fully redeemed. to paraphrase, "I feel bad for you guys; you'll be out of business soon." since then, stocks + trend beat the S&P...

By Corey Hoffstein
Rowing Intervals to Crush the Dad Bod
SocialApr 20, 2026

Rowing Intervals to Crush the Dad Bod

☠️ death to dad bod 🚣🏼‍♀️ rowing my little boat 10 minute warm up 🔁 17x 1 minute sprint 2-2:30 rest https://t.co/XIh1mvKVwq

By Corey Hoffstein
Market Already Priced in Lost Bitcoin, Limiting BIP‑361 Boost
SocialApr 15, 2026

Market Already Priced in Lost Bitcoin, Limiting BIP‑361 Boost

If BIP-361 went effective immediately, it seems like 25-30% of current supply would be forever lost. All else held equal, that would imply Bitcoin should jump in price ~30-50%. So, one might interpret price action as the market's time-weighted probability of adoption. But...

By Corey Hoffstein
Optimal Return Stacking Requires Defined Base, Objective, Constraints
SocialApr 14, 2026

Optimal Return Stacking Requires Defined Base, Objective, Constraints

One question I get all the time with return stacking is, "what does the optimal stack look like?" Without constraints, it's an intractable question. What's our base? What's our objective? What are our constraints? We explore this in a new blog...

By Corey Hoffstein
Long‑Only vs Market‑Neutral: Constraints Drive Alpha Gap
SocialApr 13, 2026

Long‑Only vs Market‑Neutral: Constraints Drive Alpha Gap

An interesting diversion in the performance of alpha in long-only managers vs market neutral managers. How much of it is talent versus a bunch of constraints (e.g. no shorting; need to sell down MAG7 to make room for active bets; harder...

By Corey Hoffstein
Trust Your Path, Execute Each Step Fully
SocialApr 13, 2026

Trust Your Path, Execute Each Step Fully

Loved this quote from this new profile on @chameleon_jeff: "He had always tried to live by this principle: Be very confident you’re going in the right direction, and execute well on the step you’re taking right now, without knowing exactly where...

By Corey Hoffstein
Quarterly Return Stacked® ETF Commentary Now Available
SocialApr 10, 2026

Quarterly Return Stacked® ETF Commentary Now Available

Our quarterly commentary for the Return Stacked® suite of ETFs is now available. https://t.co/s2N4agfveH https://t.co/fjJfOvDSSc

By Corey Hoffstein
Use Synthetic Futures with Fixed Expiry to Smooth Perp Funding
SocialApr 9, 2026

Use Synthetic Futures with Fixed Expiry to Smooth Perp Funding

i know everyone wants to just compare one number to another... but instead of having perps track the front month contract and have funding spikes during rolls... why not just have perps target a synthetic future with a constant time to expiration?

By Corey Hoffstein
BlackRock Rewrites 60/40: Add Alternatives, Benchmark Cash
SocialApr 8, 2026

BlackRock Rewrites 60/40: Add Alternatives, Benchmark Cash

so blackrock is making a strong push that the new 60/40 is actually 60% stocks / 20% bonds / 20% alternatives. and how does blackrock want to benchmark it? 60% stocks / 20% bonds / 20% cash. convenient way to...

By Corey Hoffstein
Commodity QIS: Hidden Engine of Systematic Returns
SocialApr 6, 2026

Commodity QIS: Hidden Engine of Systematic Returns

Commodity QIS: An Under-Appreciated Source of Systematic Returns? (S7E29) In this episode I speak with Faheem Osman, Managing Director and Global Head of QIS Structuring at Macquarie Group. Faheem has spent nearly two decades inside major investment banks — first at Citi,...

By Corey Hoffstein
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