Original research · the weekly find
The weekly find — week 37, 2026.
measured by Skontro · permanent edition · 2026-09-07 → 2026-09-14
Week 37, 2026, USD books: cheapest OKX $2.58 all-in, priciest Coinbase $12.55.
01 · USD books
In dollars.
Skontro's dollar series · ISO week 37, 2026
Cheapest measured — full basket
OKX
$2.58 all-in
Most expensive measured — full basket
Coinbase
$12.55 all-in · 4.9× the cheapest
This week’s notes (2)
The widest measured exchange gap this week was on BTC: a $1,000 buy averaged $1.17 all-in at OKX vs $12.02 at Coinbase — 10.3× apart over 168 paired hourly measurements.
Time of day showed up in the measurements this week: the average hidden spread was $1.15 in the 12–16 UTC window vs $0.85 in 08–12 — 36.6% apart for the same $1,000 buy.
Window: 2026-09-07 → 2026-09-14 · 19,844 measurements · estimated exchanges excluded · Method: /true-cost/methodology
02 · USDT books
In USDT.
Skontro's dollar series · USDT books, never blended with USD
Cheapest measured — full basket
MEXC
1.33 USDT all-in
Most expensive measured — full basket
Coinbase
14.67 USDT all-in · 11.1× the cheapest
“0% fee” check: MEXC advertises a near-zero taker fee — measured all-in this week 1.33 USDT, 0.83 USDT hidden spread.
This week’s notes (2)
The widest measured exchange gap this week was on BTC: a 1,000 USDT buy averaged 0.81 USDT all-in at MEXC vs 12.40 USDT at Coinbase — 15.3× apart over 166 paired hourly measurements.
Time of day showed up in the measurements this week: the average hidden spread was 1.17 USDT in the 12–16 UTC window vs 0.88 USDT in 08–12 — 32.2% apart for the same 1,000 USDT buy.
Window: 2026-09-07 → 2026-09-14 · 27,197 measurements · estimated exchanges excluded · Method: /true-cost/methodology
03 · EUR, the founding service
Founding EUR series.
Skontro's founding EUR series · longest continuous record
Cheapest measured — full basket
OKX
€2.79 all-in
Most expensive measured — full basket
Coinbase
€13.44 all-in · 4.8× the cheapest
“0% fee” check: MEXC advertises a near-zero taker fee — measured all-in this week €3.09, €2.59 hidden spread.
This week’s notes (1)
The widest measured exchange gap this week was on BTC: a €1,000 buy averaged €1.54 all-in at Binance vs €12.60 at Coinbase — 8.2× apart over 167 paired hourly measurements.
Window: 2026-09-07 → 2026-09-14 · 32,734 measurements · estimated exchanges excluded · Method: /true-cost/methodology
Cite: Skontro Weekly Find 2026-W37, measured 2026-09-07 to 2026-09-14, 79,775 hourly order-book measurements. skontro.com/research/finds/2026-W37
See what a buy costs today, live · or this week’s rolling find and the monthly index.
← W36 · W37 · W38 → · All research
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Window: Monday 2026-09-07 → 2026-09-14 (UTC, ISO week) · 79,775 measurements · Method: /true-cost/methodology · JSON: /api/truecost/weekly?week=2026-W37
Skontro — built in Vienna by OptiRisk Consulting e.U. Not investment advice; Skontro is not a CASP under MiCAR.