FinzData Weekly

FinzData Weekly: Liquidity, Capital Flows & Positioning, September 19, 2026

Liquidity, capital flows and positioning for the week to September 19, 2026, built from the FinzData database. Data, not investment advice.

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This week in five lines

• Fed net liquidity stands at $5,864bn as of 2026-09-16, rising over the past four weeks (+72bn).
• The Treasury General Account is falling over four weeks (−77bn) to $877bn.
• M2 money supply is 6.1% versus a year ago at $23,306bn.
• Most crowded positioning: US 10-year Treasury (Asset managers, index 100) and Corn (Managed money, index 100).
• Largest weekly swing in net % of open interest: Japanese yen (Leveraged funds) at +14.1pp.

Liquidity

Fed net liquidity at $5,864bn as of 2026-09-16, up +72bn over four weeks. The Treasury General Account fell −77bn over four weeks to $877bn, while M2 money supply is 6.1% versus a year ago at $23,306bn.

Capital flows (TIC)

Net foreign purchases of US long-term securities were 40.616 in 2026-07-01, down from 208.899 the prior month. Net foreign purchases of US Treasuries were -3.56, while foreign official net purchases of Treasuries were 25.537.

Positioning (CFTC Commitments of Traders)

TFF report (financial futures)

Disaggregated report (commodities)

Crowding and weekly swings

Most crowded (by |COT index − 50|)

• US 10-year Treasury (Asset managers): COT index 100, flag: Crowded long.
• Corn (Managed money): COT index 100, flag: Crowded long.
• Corn (Producers/merchants): COT index 4, flag: Crowded short.
• Soybeans (Managed money): COT index 96, flag: Crowded long.
• SOFR 3-month (Leveraged funds): COT index 4, flag: Crowded short.

Largest weekly swings (by |w/w pp|)

• Japanese yen (Leveraged funds): +14.1pp to 4.3% of open interest.
• Japanese yen (Asset managers): +10.0pp to 9.9% of open interest.
• Nasdaq-100 (Leveraged funds): +8.0pp to -3.8% of open interest.
• S&P 500 (Asset managers): −6.9pp to 36.5% of open interest.
• Bitcoin (CME) (Leveraged funds): +6.8pp to -30.6% of open interest.

Most crowded positioning: US 10-year Treasury (Asset managers, index 100) and Corn (Managed money, index 100). Largest weekly swing in net % of open interest: Japanese yen (Leveraged funds) at +14.1pp.

Method and sources

All figures are point-in-time for the issue date. COT positioning uses rows dated on or before issue date minus four days (Tuesday positions published the following Friday). Liquidity and TIC series use rows dated on or before issue date minus two days. This lets us rebuild past issues exactly as they would have appeared at the time.

• Liquidity and flows: latest observation, plus the change versus the last observation on or before 7, 28, 91 and 365 calendar days earlier. Monthly TIC flows also show the prior month and a trailing-12-month sum; foreign holdings show the level and the 12-month change.
• Positioning: net = long − short contracts per trader group; net % of open interest = 100 × net ÷ total open interest; w/w change in net contracts and in net % of open interest (percentage points); COT index = 100 × (net − min) ÷ (max − min) over the last 156 weekly rows (50 when max equals min); percentile of net % of open interest versus all history since 2010. "Crowded long" when the COT index is 90 or above, "Crowded short" when 10 or below.
• Sources: Federal Reserve H.4.1, US Treasury, FRED, CFTC Commitments of Traders, and the US Treasury TIC survey, all stored in the FinzData database.

Explore the underlying series: COT positioning, datasets, explore, and the RSS feed.

Pull the same data

import finzdata as yf

c = yf.Client()

# Net liquidity: Fed assets minus TGA minus reverse repo
liq = c.liquidity("FED_NET_LIQUIDITY")

# COT positioning: S&P 500 futures, TFF report
cot = c.cot(report="tff_fo", market="13874+")

# Treasury International Capital flows
tic = c.tic()

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