cryptobriefing.com
Bitstamp just reclaimed a title it hasn’t held since 2023. The Robinhood-owned exchange earned the top spot in CoinDesk’s May 2026 Exchange Benchmark with a score of 90.26 and an AA grade, leapfrogging Binance, which slipped all the way to fourth place.
What changed in the rankings
CoinDesk bumped the AA threshold from 80 to 85, which is a meaningful jump in a grading system where every point matters. The result: only six exchanges now carry AA status, down from eight in the November 2025 edition.
Gemini and OKX were among the casualties, both falling from AA to A under the updated methodology. Binance kept its AA grade but lost the top position it had held for the past three years.
The overall average score across all evaluated exchanges rose to 58.42, up from 56.94 in November 2025. The number of Top-Tier exchanges, defined as BB and above, grew modestly to 21 from 20. Coinbase International was a notable new entrant, scoring 70.62 and earning a BB rating.
How Bitstamp got here
Bitstamp’s ascent didn’t happen overnight. The exchange has earned ten consecutive AA ratings from CCData. In the Q4 2025 benchmark, it ranked second overall.
Robinhood acquired Bitstamp in June 2024 for $200M, a deal that gave the US brokerage a European-licensed crypto exchange with deep institutional relationships.
The CoinDesk Exchange Benchmark, launched in 2019, evaluates global crypto exchanges across more than 100 metrics divided into eight categories, spanning market quality, legal compliance, security, and infrastructure.
For this edition, CoinDesk introduced new sub-metrics that hadn’t existed before. Flash crash evaluations now factor into scores, meaning exchanges that experience or mishandle sudden, extreme price dislocations get penalized. KYC non-compliance metrics were also expanded, adding another layer of scrutiny around how well platforms verify user identities.
What this means for investors
Regulated financial products, from ETFs to structured crypto notes, often reference exchange benchmarks when selecting price sources and trading venues. An exchange with a top-tier rating is more likely to be included in these products, which means more volume, more liquidity, and better execution for everyone trading there.
The narrowing of the AA tier to just six exchanges concentrates institutional attention. When fewer platforms carry the top rating, those that do become natural magnets for the kind of large, compliance-sensitive capital that has been slowly entering crypto markets over the past two years.
Binance dropping to fourth, despite maintaining its AA grade, is also worth monitoring. The methodology is shifting toward governance, compliance infrastructure, and market integrity, areas where smaller, more regulated exchanges can punch above their weight.