697 relationships, 56 stopped behaving.
Every week we check how 697 pairs of markets stand to each other. This week the breaks gather in volatility and equity regions: 33 of 176 pairs, where a normal Friday has 9. Bonds have not joined in.
a normal Friday. Elevated: weeks this high come 16 in 100. Feb 2020 peaked at 22×, Oct 2008 at 14×.
2 of 7 families hot: volatility and equity regions. A family is hot when three times as many of its pairs break as on a normal Friday.
Falling, 3.4× → 2.9×, second week above the Elevated line (2.1×). Last time it stood here on the way down: Jun 2026.
8 of 140 bond pairs breaking, where a normal Friday has 9. Credit: 6 of 112, normal 6.
Ten relationships that stopped behaving.
- 01FTSE 100 ⟋ VIX (equity vol)Usually a hedge for each other; now they move together.since 16 Oct · came apart · correlation 0.09 · z −3.4
- 02FTSE 100 ⟋ JakartaUsually move together; now they move against each other.since 16 Oct · came apart · correlation −0.35 · z −3.2
- 03Nikkei 225 ⟋ Mexico IPCUsually move together; now they move against each other.also last week · came apart · correlation −0.26 · z −3.2
- 04Mexico IPC ⟋ VIX (equity vol)Usually a hedge for each other; now they move together.since 16 Oct · came apart · correlation 0.11 · z −3.1
- 05Mexico IPC ⟋ US HY creditUsually move together; now they move against each other.also last week · came apart · correlation −0.30 · z −3.0
- 06SMI ⟋ JakartaUsually move together; now they move against each other.since 16 Oct · came apart · correlation −0.28 · z −2.9
- 07US Tech ⟋ US DiscretionaryUsually move together; much less so now.also last week · came apart · correlation 0.34 · z −2.9
- 08KOSPI ⟋ SensexUsually move together; now they move against each other.since 16 Oct · came apart · correlation −0.31 · z −2.9
- 09US Staples ⟋ VIX (equity vol)Usually a hedge for each other; now they move together.since 16 Oct · came apart · correlation 0.31 · z −2.8
- 10KOSPI ⟋ TIPS (TIP)Usually move together; now they move against each other.since 16 Oct · came apart · correlation −0.43 · z −2.8
The other 46 are real but not readable as a list. They are all in the field above, one mark each; here they are in a table.
| Family | Pair | Direction | Correlation | z |
|---|---|---|---|---|
| Volatility | FTSE 100 ⟋ VIX (equity vol) | came apart | 0.09 | −3.4 |
| Equity regions | FTSE 100 ⟋ Jakarta | came apart | −0.35 | −3.2 |
| Equity regions | Nikkei 225 ⟋ Mexico IPC | came apart | −0.26 | −3.2 |
| Volatility | Mexico IPC ⟋ VIX (equity vol) | came apart | 0.11 | −3.1 |
| Credit | Mexico IPC ⟋ US HY credit | came apart | −0.30 | −3.0 |
| Equity regions | SMI ⟋ Jakarta | came apart | −0.28 | −2.9 |
| US sectors | US Tech ⟋ US Discretionary | came apart | 0.34 | −2.9 |
| Equity regions | KOSPI ⟋ Sensex | came apart | −0.31 | −2.9 |
| Volatility | US Staples ⟋ VIX (equity vol) | came apart | 0.31 | −2.8 |
| Bonds | KOSPI ⟋ TIPS (TIP) | came apart | −0.43 | −2.8 |
| Equity regions | FTSE 100 ⟋ KOSPI | came apart | −0.41 | −2.8 |
| Bonds | TAIEX ⟋ TIPS (TIP) | came apart | −0.32 | −2.7 |
| Volatility | SMI ⟋ VIX (equity vol) | came apart | 0.09 | −2.7 |
| Volatility | Jakarta — VIX (equity vol) | moved closer | −0.65 | +2.7 |
| US sectors | US Tech ⟋ US Staples | came apart | −0.56 | −2.6 |
| Equity regions | KOSPI ⟋ Mexico IPC | came apart | −0.41 | −2.6 |
| Equity regions | KOSPI ⟋ ASX 200 | came apart | −0.23 | −2.5 |
| Equity regions | SMI ⟋ KOSPI | came apart | −0.45 | −2.5 |
| Volatility | US Financials ⟋ VIX (equity vol) | came apart | −0.17 | −2.5 |
| Volatility | TSX ⟋ VIX (equity vol) | came apart | −0.19 | −2.5 |
| Commodities | Hang Seng — Gold | moved closer | 0.49 | +2.5 |
| FX and crypto | US Utilities ⟋ Bitcoin | came apart | −0.42 | −2.4 |
| Equity regions | S&P 500 ⟋ Mexico IPC | came apart | 0.03 | −2.4 |
| Credit | US Tech ⟋ US IG credit | came apart | 0.22 | −2.4 |
| Volatility | US Materials ⟋ VIX (equity vol) | came apart | 0.01 | −2.4 |
| US sectors | US Tech ⟋ US Real estate | came apart | −0.31 | −2.4 |
| Equity regions | TAIEX ⟋ Mexico IPC | came apart | −0.25 | −2.4 |
| US sectors | US Industrials ⟋ US Real estate | came apart | 0.24 | −2.4 |
| Equity regions | S&P 500 ⟋ FTSE 100 | came apart | 0.03 | −2.4 |
| Equity regions | Sensex ⟋ Jakarta | came apart | −0.27 | −2.3 |
| Bonds | SMI — TIPS (TIP) | moved closer | 0.65 | +2.3 |
| Equity regions | TSX ⟋ Bovespa | came apart | −0.08 | −2.3 |
| US sectors | US Tech ⟋ US Financials | came apart | −0.13 | −2.3 |
| Credit | Tadawul — EM corporate credit | moved closer | 0.57 | +2.2 |
| Bonds | US Tech ⟋ EM bonds (EMB) | came apart | 0.05 | −2.2 |
| Equity regions | SMI ⟋ TAIEX | came apart | −0.20 | −2.2 |
| Equity regions | S&P 500 ⟋ SMI | came apart | 0.06 | −2.2 |
| Credit | US Tech ⟋ Euro HY credit | came apart | 0.06 | −2.2 |
| Volatility | US Real estate ⟋ VIX (equity vol) | came apart | 0.14 | −2.2 |
| Equity regions | Euro Stoxx 50 ⟋ Bovespa | came apart | −0.16 | −2.2 |
| Volatility | Sensex ⟋ VIX (equity vol) | came apart | 0.07 | −2.2 |
| Credit | Tadawul — US HY credit | moved closer | 0.57 | +2.1 |
| Bonds | US Financials ⟋ US 10y Treasury | came apart | 0.45 | −2.1 |
| Equity regions | KOSPI ⟋ TSX | came apart | −0.15 | −2.1 |
| US sectors | US Industrials ⟋ US Staples | came apart | 0.04 | −2.1 |
| Volatility | US Health ⟋ VIX (equity vol) | came apart | 0.13 | −2.1 |
| Credit | US Discretionary ⟋ US HY credit | came apart | 0.31 | −2.1 |
| Equity regions | Mexico IPC ⟋ Tadawul | came apart | −0.21 | −2.1 |
| Bonds | US Tech ⟋ Curve steepening (2s10s) | came apart | 0.27 | −2.1 |
| Bonds | Nikkei 225 ⟋ TIPS (TIP) | came apart | −0.38 | −2.1 |
| Equity regions | FTSE 100 ⟋ Nikkei 225 | came apart | −0.19 | −2.1 |
| Equity regions | FTSE 100 — Sensex | moved closer | 0.66 | +2.0 |
| US sectors | US Industrials ⟋ US Materials | came apart | 0.41 | −2.0 |
| Volatility | US Tech ⟋ MOVE (bond vol) | came apart | −0.24 | −2.0 |
| Bonds | EM (EEM) ⟋ Curve steepening (2s10s) | came apart | 0.26 | −2.0 |
| Equity regions | Euro Stoxx 50 ⟋ SMI | came apart | 0.43 | −2.0 |
Three times before. Friday by Friday, from the week each one crossed.
The same colour.
What moved in seven days, and what didn't.
- Severity, against a normal Friday
- 3.4× → 2.9×
- Pairs behaving unlike their past
- 68 → 56
- Families hot
- 2 of 7 → 2 of 7
- New on the list
- 8 pairs · Hang Seng — Gold among them
- Reach into bonds
- 10 of 140 → 8 of 140 · not yet
The next square is written on Saturday 31 October 2026.
Every Saturday morning, for the week that ended on Friday.
753 pairs in seven families, each family weighing the same · correlation of weekly returns, weighted to the last few months (half-life nine weeks), Friday to Friday · a pair breaks when that correlation is two standard deviations away from its own previous two years (Fisher z, spread floored at sampling noise) · Calm, Elevated, High and Severe are the 75th, 90th and 97th percentiles of every week since 2001 · a normal Friday is the median week since 2001 · derived statistics only, no prices · since 1997, recomputed each week, the first published value kept.
