Pikachu with Grey Felt Hat

This card's down 18.2% this week and 27.3% this month, so if you're holding one, now's the time to think hard about listing before it finds a floor. Raw copies have actually been selling for around £530 over the past 90 days, yet the cheapest ask is £574.99—there's a real gap between what the market's paying and what sellers want. Half the UK stock is played, which makes a Near Mint copy genuinely scarce; if you've got a flawless one and are thinking of grading it, remember a PSA 10 is worth 3× a 9 (£2,000 versus £660), so don't bother unless it's truly pristine.

• CautionDown 18.2% this week and 27.3% this month. Still falling; list now or hold for a floor.
• CautionA PSA 10 is worth 3× a 9 (£2,000 vs £660); only grade a flawless copy.
• Notable50% of the UK listings are played copies (14 of 28); a Near Mint copy is the scarce one.
• NotableAt its 30-day low of £520 (the high was £752).
• NotableRaw copies actually sell for £530 (7 UK sales in 90 days, latest £530 on 27 Sep); the cheapest ask is £575.
• Notable1st most valuable card in SVP Black Star Promos (of 224 priced).
• NotableThis card is 25.6% of the set's total value (£2,032).