Why PureTech keeps falling despite the best news flow in its history5 May 2026 16:36
I used to scratch my head looking at PureTech thinking what am I missing, why is it so cheap, why would anyone short it down here. After today's price action following weeks of genuinely excellent news, it's finally dawned on me. The shorts aren't betting against the fundamentals. They probably haven't even read the Seaport S-1. They're exploiting a structural vulnerability: no analyst coverage, minimal retail awareness, a confusing hub-and-spoke model, and daily volume so thin that £50-100k of selling pressure can move the price 7-8%.
It's not just the shorts selling into a thin market knowing their selling alone will push the price down. The algorithmic market makers amplify it, their models detect the downward momentum. Then the momentum-following quant funds pile on with their own sell signals. The combined effect is relentless downward pressure that overwhelms the handful of informed buyers like us trying to accumulate at these levels. The worst part is it becomes self-reinforcing - the stock falls, the discount widens, it looks like a poor investment, new buyers are discouraged, which makes it even easier to push down further.
So fundamental value is irrelevant to the trade. All that matters is that selling pressure exceeds buying pressure, and in a stock this illiquid that's achievable with modest capital on almost any given day. Today is a classic example of this down 9% on tiny volume.
This all changes of course once serious buying volume arrives, flipping the market makers and quants from sell to buy. The only consolation is that being a PLC allows those of us who've done the homework to buy at these absurd levels. Patience will be rewarded my friends. These games won't last forever, the value on offer here will be noticed by the herd, it's just a matter of when.