RE: Up +17.48% on US OTC market10 Feb 2022 22:47
Either US brokers hold stock on their books or have to buy from UK brokers to fill US orders.
Also worth noting price on US OTC market reached over +50 cents few years back when London price touched +38p.
Lot of posters back then started quoting MATD to promote other stocks when MATD share price ran up from +3.5p to +38p.
Also came across a piece on US "market beat" site who now got "strong buy" rating on MATD. I found that very interesting coz US buyers been paying +14% premium on UK closing price today.