29 June 2026

14 new episodes (11 hours listening) published by the 38 podcasts on the list. 2 highlight clips below (6 mins total).

Investment 29 June 2026 · 2 clips

Flirting with Models

Peter Hecht

Episode

Peter Hecht – Portable Alpha: Solving the Funding Problem of Alternatives (S7E31)

Peter Hecht co-heads the North America Portfolio Solutions Group at AQR, a role the host describes as solving portfolio problems for clients rather than running a particular strategy. He ran a portable alpha programme himself as an allocator through the 2008 crisis, and the show introduces him as having worked on the idea for close to two decades.

Hosted by

Corey Hoffstein

29 June 2026 · 1h 6m · 2 clips below

1 of 2 explainer

Peter Hecht, who ran a portable alpha programme as an allocator through 2008, traces the damage to beta estimates that read 0.1 when the real exposure was 0.4, leaving institutions at 1.3 beta against a beta-one benchmark.

Hedge funds holding quasi-liquid securities report smoothed returns, and a 36-month rolling regression on those returns was the only estimate available when the manager would not show holdings. A second failure compounded it: the overlay manager needed cash for margin while the alpha sat behind 45-day notice and quarterly gates, so the derivative leg could not be funded while the S&P was falling.

3m 37s · from 15:16
My observations
- Splitting the alpha manager from the overlay manager is what creates both failures at once, and a single-manager structure removes them by construction, which happens to be what AQR sells. The diagnosis survives the conflict, and the test it implies is the liquidity terms of the alpha sleeve set against the margin cycle of the beta sleeve, whatever the wrapper.
- Smoothing biases the estimate in one direction only. Every allocator regressing illiquid hedge fund returns was carrying more market exposure than they believed, which is why the error arrived as a drawdown rather than as tracking noise.
- Hecht calls his own regressions cutting edge for the period, which puts the failure on the information available at the time. The question for a programme running today is whether holdings-level look-through has actually arrived, or whether the estimate is still a regression with a better name on it.
- risk-management
- liquidity
2 of 2 explainer

AQR's Peter Hecht argues the level of the cash rate is irrelevant to what a long-short programme has to earn, and that the only financing cost that bites is the prime broker's spread.

Go 200 long and 200 short on 100 dollars of capital: the financed half pays the overnight rate, and the short sale proceeds are credited back at it, whether the prevailing number is 5% or zero. What the broker keeps is the wedge, a borrow marked up 30 basis points against a rebate marked down 30, and that wedge moves with the broker rather than with policy.

1m 59s · from 25:51
My observations
- Advisers raise this objection constantly, that rates are too high now for leverage to pay, and the arithmetic says it is simply wrong. The negotiable items are the borrow markup and the short rebate, which differ between prime brokers and appear on no fact sheet.
- It only cancels this cleanly for a fully collateralised long-short book. Wherever the short leg is hard to borrow the wedge widens, so a manager shorting small caps or crowded names is paying a spread that has nothing to do with the policy rate.
- Both numbers can be asked for in any long-short mandate review. The wedge is a cost carried by the mandate that never appears in the fee schedule, and it moves with the broker rather than with policy.

29 June 2026

Investment 29 June 2026 · 2 clips

Peter Hecht, who ran a portable alpha programme as an allocator through 2008, traces the damage to beta estimates that read 0.1 when the real exposure was 0.4, leaving institutions at 1.3 beta against a beta-one benchmark.

AQR's Peter Hecht argues the level of the cash rate is irrelevant to what a long-short programme has to earn, and that the only financing cost that bites is the prime broker's spread.