Might end up 3p or down today pyglet, but your comment about Robbie Burns is rubbish imo - he only bought at 78p and 79p, after the shares had already risen from around 67p after the stonking results. And this is now a £75m m/cap company, so the rise has been results and fundie-driven, not the result of a few of Robbie's followers.
The consensus forecast for the year starting on 1st April is 7.48p EPS. That's a P/E of just 11.8 at 88p.
As CR says, TRI could and should justify a P/E substantially greater than that. And those forecasts are likely to be lifted imho bearing in mind TRI made 3.47p adjusted EPS in the last H1 alone.