Paolo Ardoino was reported to have said at the Plan ₿ Forum in Lugano on November 2 that Tether owns approximately 150,000 BTC, worth about $11.5 billion at the time. The supplied report says he did not specify which Tether entities or holdings were included, and no official document supporting the 150,000 BTC figure was identified. Multiple public Telegram posts repeated the claim, but they do not independently establish the amount.
The supplied figures for BDO’s September 30 USDT reserve attestation are $8.37 billion in Bitcoin at $83,621 per BTC, or about 100,000 BTC. That is roughly 50,000 BTC below the reported total. If both figures are accurate and use comparable scopes, the difference would be holdings outside USDT backing; that explanation is an inference, not a stated breakdown. The BDO report itself could not be verified from the available source.