Popular cryptocurrency exchange Bitfinex has responded to rumors suggesting that the business is struggling and may be insolvent.

In a blog post this week, Bitfinex talked of the company’s “ups and downs,” and responded to a string of Medium articles spreading rumors about Bitfinex’s solvency.

In addressing the allegations, Bitfinex reassured investors that both fiat – Euros, Japanese Yen, Pounds Sterling and U.S. Dollars – and cryptocurrency withdrawals “are functioning as normal,” and even offered up links to its Bitcoin, Ethereum, and EOS cold wallets, saying the assets in the accounts are just a “small fraction of Bitfinex cryptocurrency holdings and do not take into account fiat holdings of any kind.” The wallets combined are valued at roughly $1.6 billion.

Bitfinex also took the opportunity to reiterate that the recent news surrounding the sale of Noble Bank has “no impact on our operations, survivability, or solvency.” Noble Bank has long been rumored to be Bitfinex’s banking partner, after discovering ties between Noble Bank and Tether, which Bitfinex is closely associated with due to the two companies sharing a CEO in Jan Ludovicus van der Velde.

Last week, Bloomberg reported that Noble had lost Tether and Bitfinex as partners, and was searching for a buyer. Noble Bank has yet to comment on the matter. However, the news sparked increased speculation over Tether’s legitimacy. The company behind the controversial stablecoin is often accused of not properly backing each Tether 1:1 with a corresponding US dollar, as it claims.

Investor unease surrounding the situation has led to a premium on Bitcoin prices on exchanges that offer Tether (USDT) trading pairs compared to its fiat pair counterparts. For example, Bitcoin is trading at $6,592 on Bitfinex at the time of this writing, while on Coinbase Bitcoin is priced at $6,505, representing an $87 premium.

Earlier in June, Tether hired a former FBI director’s law firm to conduct an independent review. The review reportedly confirms that all Tether are indeed backed by a corresponding US dollar, however, the cryptocurrency community still isn’t satisfied by the evidence and demands additional audits.