Thursday, October 15, 2026 AiM Weekly is free
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Watercolour landscape whose skyline traces the S&P 500 from 1927 to today. The paint stops at today, where a small figure in a wide hat, with a pack on the back and a pole carried level, walks the last ridge toward the blank paper.

S&P 500, 1927 to 2026S&P 500, 1977 to 2026

AiM Weekly

AiM Weekly is a free newsletter about managing risk through the whole market cycle. Posts range from cash levels and position sizing to market sentiment, macroeconomics and political economy, and more.

Written by Teresa Lo, a market veteran who survived every crash since 1987.About →

The briefing

Thursday, October 15, 2026Morning and evening editions24 stories

Tech Oligarchs

Anthropic shows pre-IPO investors a $16.8 billion quarter as the AI trade sells off

The AI lab told prospective investors its third-quarter revenue reached $16.8 billion and that it turned cash flow positive, on a day the broad US equity market fell on fears about the AI trade.

Read the story8 sources · 7 outlets

Edwin’s run, morning and evening editions

4,132 items read

  • 48 hours of RSS feeds tracking people and topics I follow
  • 24 stories, most-sourced first
  • 0 rejected by the checks
Run log

Eleven popular lazy portfolios, and how much of each should be in cash this week

Lazy Portfolios SnapshotData to October 12, 2026

Every Saturday the free newsletter scores eleven popular lazy portfolios, Three-Fund, Coffeehouse, All Seasons and the rest, and works out how much of each should sit in cash. When a portfolio’s volatility rises past 10%, part of it moves to cash.

The reading

All eleven lazy portfolios were fully invested.

As of October 12, 2026, they range from 6.5% to 8.8% volatility. Raise cash once volatility exceeds 10%.

Get it free, every Saturday.

Cash is king during downturns. Knowing when to raise cash reduced the typical portfolio’s worst drawdown by 31 percent.

Portfolio

Worst drawdown since 2005

Drawdown %
some cash · all in

Volatility
now

Cash
now

Armstrong Ideal Index

IVV 7 · IUSV 9 · MSML 6 · ISCV 9 · IXUS 31 · USRT 8 · ISTB 30

−27.9 · −44.1

7.6%

0%

Swensen

ITOT 30 · IDEV 15 · IEMG 10 · USRT 15 · GOVT 15 · TIP 15

−26.0 · −42.6

7.9%

0%

Burns Margarita

ITOT 34 · IXUS 33 · TIP 33

−28.9 · −42.0

8.4%

0%

Larimore Three-Fund

ITOT 34 · IXUS 33 · AGG 33

−27.8 · −40.5

8.8%

0%

Schultheis Coffeehouse

Six stock funds, 10 each · AGG 40

−24.4 · −38.2

6.9%

0%

Ferri Core Four

ITOT 30 · IXUS 24 · AGG 40 · USRT 6

−25.3 · −36.7

7.7%

0%

Bernstein Coward’s

Eight stock funds, 60 in all · ISTB 40

−23.0 · −36.4

6.5%

0%

Ferri Two-Fund

VT 60 · AGG 40

−25.1 · −35.9

7.9%

0%

Ferri Three-Fund

ITOT 40 · IXUS 20 · AGG 40

−25.0 · −35.5

7.9%

0%

Robbins/Dalio All Seasons

ITOT 30 · TLT 40 · IEF 15 · GLD 7.5 · BCI 7.5

−21.1 · −24.3

7.1%

0%

Browne Permanent

ITOT · GLD · SHY · TLT, 25 each

−18.6 · −19.0

8.7%

0%

Since September 8, 2005 (Robbins/Dalio All Seasons since August 4, 2006). MSML is the iShares MSCI USA Small-Cap ETF, renamed from ISCB on October 5, 2026 (SEC filing). Volatility is the size of a portfolio’s ups and downs, measured over a year. When a portfolio’s volatility rises past 10%, part of it moves to cash to a maximum of 50%. Full details in every issue of AiM Weekly. General information, not investment advice.

On the record

Dated calls, archived links

The whole record

The sections

6 shelves, each painted from the series it watches