Why is Pulsar stock slumping today?

Pulsar Group PLC's shares experienced a significant drop of 10.0% to trade at 25.2p during today's trading session. This decline followed the revelation that both the company and its subsidiary, ResponseSource, are being targeted by HM Revenue & Customs (HMRC) through a winding-up petition. The petition concerns outstanding VAT and PAYE payments, which had previously been speculated about but were now officially disclosed in a regulatory statement to the London Stock Exchange.

In an effort to mitigate potential damage, the board highlighted that substantial payments had already been made and that the remaining balance was expected to be settled from the group's ordinary cash flows. Management expressed confidence in resolving the matter amicably with HMRC. While the company showcased strong underlying operating performance, including record first-half revenue of £33 million, a 10% year-on-year increase, and a 39% rise in adjusted EBITDA, investors seemed more preoccupied with the insolvency risk.

The stock plummeted to a 52-week low of 25.04p intraday, as the broader market environment did not provide much assistance. The FTSE 100 had registered its sixth consecutive day of losses, declining by 0.3%, while the FTSE 250 experienced its steepest single-day drop in over three weeks, shedding 0.7%. Additionally, U.S. equity markets faced pressure, with technology stocks underperforming, contributing to a risk-off sentiment that intensified selling pressure on smaller-cap AIM names.

The combination of the formal HMRC winding-up petition, a concern regarding near-term liquidity and corporate solvency, coupled with a weak UK and global market backdrop, proved to be too much for Pulsar's stock. The company's shares have now traded more than 49% below its 52-week high of 50p, marking one of the sharpest single-day declines in recent history.