BSDEX exchange profile

The exchange matches client orders through an open order book. The listed markets are BTC, BCH, ADA, LINK, ETH, LTC, DOT, XRP, SOL and UNI against EUR. A sale requires the corresponding available crypto balance; this spot account does not make an uncovered short sale possible.[3]

During an auction, compatible buy and sell instructions are collected rather than immediately matched. Price determination and execution occur at the auction’s specified time. This explains why a visible order can remain unexecuted even when an opposing price appears suitable; the trading phase matters as well as the displayed book. Volatility interruptions can trigger such an auction.[6]

Retail access is available through the website and iOS/Android apps using the same credentials. The published app guide identifies the Advanced Chart as a web feature.[29]

For a hypothetical €5,000 fill, the published percentage produces €10 as maker or €17.50 as taker. These are single-execution charges before spread or price movement; a later sale creates another transaction charge.[10]

Fee classification follows what each executed portion does to liquidity. A single instruction can cross the spread for one portion and leave another resting, so its final charge can combine the two rates. Check the execution detail when reconciling costs rather than assigning one rate solely because the original order was labelled limit. The separate auction classification can also change that comparison.[11]

Crypto receipt is a separate process from observing an on-chain confirmation. BSDEX can review a transfer before crediting it and says processing may take several working days. Its deposit guide does not impose an amount ceiling, but that does not waive source, ownership or address checks.[16]

Supported address format can differ by direction. The guide accepts Bitcoin Taproot addresses beginning bc1p for deposits but not withdrawals; BTC legacy, P2SH and bc1q addresses support both. Litecoin addresses beginning 3 are accepted inbound but not outbound. For XRP, the destination tag belongs with the address and can be needed by the receiving exchange as well.[18]

A wallet micro-test requires spare coins outside the intended transfer. Attempting to move the entire wallet balance can leave nothing to complete the test; ERC-token proof uses an ETH micro-transfer. The test amount is credited to the BSDEX portfolio after receipt, but its network cost remains the customer’s expense. A signature proof demonstrates wallet control without requiring disclosure of the private key.[19]

The custody agreement places crypto with Boerse Stuttgart Digital Custody GmbH on the customer’s behalf. Customer holdings may share blockchain addresses while remaining separated from the custodian’s own assets. The agreement permits subcustody, so the legal custody arrangement and a personally controlled wallet are different forms of control.[21]

The euro-banking guide names both Solaris SE and Deutsche Bank AG as partners. The bank actually holding the cash matters to any per-bank protection calculation; the two names do not mean every customer balance has automatically been split into two independently protected deposits. Check the account’s current banking arrangement when combining it with other deposits held at those institutions.[7]

Staking is offered for ETH and SOL. The August 2026 guide gives a variable indicative APR range of 2–8%, not a fixed return, and estimates unstaking at 1–45 days depending on the blockchain. It describes Munich Re cover for Ethereum validator slashing, without publishing the policy limit there. The release queue can prevent an immediate sale or withdrawal even when the exchange is otherwise operating. Staking history shows coins awaiting release, and the downloadable transaction history includes rewards for later record keeping.[25]

Institutional REST/FIX access is marketed for direct automated connection to the exchange, with developer support and volume-related terms. The business page names EUWAX and tradias among liquidity providers, but their presence does not guarantee depth for a specific order. API permissions, account limits and any special pricing need to be established through the institutional admission documents.[33]

If the old telephone number remains accessible, the account supports a number change using the existing SMS verification. Losing that access requires the support form, identity/account-ownership evidence and a new number; the help guide allows several working days. It does not establish a universal fixed recovery hold.[28]

The current operating rules identify [email protected] and explain that maintenance, technical failures and events outside the operator’s control can limit availability. They do not promise uninterrupted trading. A support contact is not evidence that a market order can be placed by telephone during an outage; the inspected contract does not establish such a dealing route.[31]

A formal complaint can be submitted free of charge in German or English through the complaint form or by post to BWWB at Börsenstraße 4, Stuttgart. Include contact details, the transaction time, the issue and supporting documents. The stated response period is 15 working days from receipt; if a final answer is delayed, an interim explanation is required and the final answer is due within 35 working days from receipt.[30]

The current BSDEX site describes its venue under MiCAR’s crypto trading-platform framework. Its June 2026 operating rules provide the current contractual structure; older help-page footers still mention the earlier KWG framework. Those historical footers should not be used to infer the present legal position.[1]

The AMF’s official passport list separately identifies Boerse Stuttgart Digital Custody GmbH as a German-authorised MiCA provider for custody/administration and crypto transfers, with the French passport starting 1 May 2025. That entry verifies the named custodian and those services. It does not, by itself, verify every permission of BWWB, the technology provider, or all products sold under the group’s brands.[32]

The corporate imprint identifies the Stuttgart legal entities and registered-company details. The profile concerns the BSDEX venue and account, rather than treating all Boerse Stuttgart services as one exchange. No current, comparable active-trader count is established by the inspected corporate material.[34]

Operator

Baden-Württembergische Wertpapierbörse GmbH

Exchange model

Centralised

Service scope

Ten cryptoassets against EUR; institutional REST/FIX connectivity and optional ETH/SOL staking.

Client types

Retail clients; Institutional clients

Pricing publication

Public pricing

Other names

Börse Stuttgart Digital Exchange; Boerse Stuttgart Digital Exchange

Pricing scope

Published retail maker/taker tariff; institutional volume terms differ.

Funding scope

EUR SEPA and supported crypto transfers; withdrawal and ownership verification rules apply.

Custody and asset handling

Crypto held by Boerse Stuttgart Digital Custody GmbH; cash uses partner-bank arrangements.

Client eligibility

Retail: adults resident in Germany, EEA citizenship, own German bank account, no US tax liability. Institutional admission is separate.

Support

Support form and [email protected]; formal complaints procedure.

Authorisation and registration scope

German venue framework; the separate custody entity has a documented German MiCA authorisation passport for custody and transfers.

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The technology agreement permits customer termination by email at any time and ordinary provider termination on two months’ notice. This is an account-contract rule, not an inactivity charge. A customer leaving the service should first retain the exports needed for later reconciliation.[36]