Turtwig

Turtwig's been climbing steadily—up 9.8% this week and 65.3% over the month—so this isn't just a flash spike. It's hit a 30-day high of £4.38, having risen from a low of £2.65 in that period. The cosmos printing commanding £4.38 against the plain version at £0.64 shows collectors are paying a substantial premium for the artwork variant, though at current prices you're buying into the momentum rather than catching a bargain.

• NotableUp +9.8% this week and +65.3% this month. Momentum, not a spike.
• NotableAt a 30-day high of £4.38 (the low was £2.65).
• NotableThis cosmos printing is 6.8× the plain one (£4.38 vs £0.64).