Investors are facing potential losses nearing £1 billion from a series of collapsed mini-bond firms over the past 18 months, according to recent analysis. These failed schemes, which sell high-risk debt instruments known as loan notes, have collectively left behind debts estimated at approximately £990 million, averaging around £41 million per collapsed company.

Mini-bonds, or loan notes, are unregulated financial products often marketed to retail investors despite their high risk. Following the high-profile collapse of London Capital & Finance (LCF) in 2019, which resulted in losses of £237 million, the Financial Conduct Authority (FCA) banned the sale of mini-bonds to retail investors. Nonetheless, the sector has seen a resurgence in businesses offering loan notes, frequently exploiting regulatory loopholes that permit them to bypass promotional restrictions.

In August, the FCA issued a warning against investing in unregulated loan note firms, describing many as “potential scams.” This alert followed mounting concerns about the rise of mini-bond schemes that rely on bringing in new investor funds to pay returns to existing investors—behaviors typical of Ponzi schemes.

Among the prominent failed schemes is the 79th Group, a company with £200 million in liabilities that entered insolvency in April 2025 and is now under investigation by City of London police for suspected widespread fraud. Woodville, a £299 million litigation finance business, has been accused of channeling tens of millions of pounds to related parties, raising concerns about possible mismanagement or illegal activities. Godwin Capital, valued at £175 million, is expected to yield only about 5 pence in recovery for every £1 invested, according to insolvency practitioners.

Five of the seven collapsed loan note schemes examined have been characterized by experts as unlawful Ponzi operations. Industry insiders caution that numerous other active loan note firms continue to exhibit signs of financial distress, with the total amount at risk possibly amounting to several billion pounds. Such schemes typically pay substantial commissions to “introducers” who recruit investors, further complicating the landscape.

More recently, William John, a company selling mini-bonds purportedly to fund foreign exchange trading, collapsed with outstanding liabilities believed to exceed £100 million. Investigations are ongoing to determine the total extent of its debts.

Representatives linked to the failed companies have responded in varying ways. Operators of the 79th Group deny any wrongdoing, while a spokesperson for Woodville’s directors has also rejected accusations of dishonesty. Godwin Capital’s operators have not made public comments, and attempts to reach William John’s directors were unsuccessful.

The situation has highlighted ongoing regulatory challenges and investor risks within the mini-bond and loan note market, underscoring calls for tighter oversight and greater investor awareness.