Khan Morning Brief: Costco Wholesale Corporation's filing

Here is what moved and why it matters.

Markets at the previous close

SPY · S&P 500 ETF
$763.25−1.1%
QQQ · Nasdaq-100 ETF
$709.80−2.5%
EWU · UK equities ETF
$48.01+0.5%
GLD · Gold ETF
$382.01−0.2%
BNO · Brent oil ETF
$67.19+3.6%
Bitcoin
$82,400+0.5%
US 10-year yield
5.09%−1bp
COST · SEC FILING

Costco Wholesale Corporation's filing

What happened

Costco Wholesale Corporation (COST) filed an 8-K with the SEC reporting a change among its directors or senior officers.

Why it matters

An 8-K is how a US company tells investors something material has happened, and the filing itself has the detail behind the headline.

Source: SEC EDGAR

T · SEC FILING

AT&T Inc.'s filing

What happened

AT&T Inc. (T) filed an 8-K with the SEC reporting a change among its directors or senior officers.

Why it matters

An 8-K is how a US company tells investors something material has happened, and the filing itself has the detail behind the headline.

Source: SEC EDGAR

POSITIONING · CFTC

Positioning in British pound

What happened

Speculators' net position in British pound futures is at the most bearish level of the past three years, as of 13 Oct 2026.

Why it matters

When positioning is this one-sided, there are fewer traders left to push the price further the same way, and a surprise can force a fast unwind.

Source: CFTC Commitments of Traders

Chart of the day
Speculators' positioning against the past three years
Bar chart of where speculators' net futures positions sit within three years of weekly CFTC reports, as percentiles: S&P 500 (E-mini) 30, US 10-year note 4, WTI crude oil 15, Gold 51, Euro 0, Japanese yen 71, British pound 0.

Source: CFTC Commitments of Traders

On the radar

Sources: SEC EDGAR · CFTC Commitments of Traders.

SEC, CFTC and US Treasury data are works of the US government. ETF and bitcoin prices are from Alpaca, at the previous close. ETFs are shown as ETFs, not as the indexes they track.

Every figure here comes from the sources named. This is general information, not investment advice, and nothing here is a recommendation to buy or sell anything.

What moved markets and why, from official data. Weekdays at 6:45am UK time, free.