How much is a PSA 10 Professor Elm's Lecture 188a worth?

A PSA 10 Professor Elm's Lecture 188a Lost Thunder is worth about $400; PSA 9 about $60.00. That is about 16× the ungraded value.

How often does Professor Elm's Lecture 188a sell?

Professor Elm's Lecture 188a Lost Thunder recorded 7 sales across every grade in the last 90 days (1 in the last 30), most recently on Nov 10, 2026. The highest recent sale was $14.99 for an ungraded copy on Sep 11, 2026.

What is the most valuable card in Lost Thunder?

The most valuable card in Lost Thunder is Mimikyu-GX 226/214, at about $325 ungraded. Professor Elm's Lecture 188a ranks 30th of 240.

What set is Professor Elm's Lecture 188a from?

Professor Elm's Lecture 188a is from the English Pokémon TCG set Lost Thunder, released Nov 2, 2018, in the Sun & Moon era. Its rarity is Uncommon.

What is Professor Elm's Lecture 188a worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Professor Elm's Lecture 188a is about $25.00 ungraded near mint (7 sales in 90 days); PSA 9 about $60.00 (4 sales); PSA 10 about $400 (3 sales).

Why do two copies of Professor Elm's Lecture 188a differ in price?

As of Nov 12, 2026, there is one printing of Professor Elm's Lecture 188a, so the gap is condition: near mint is $25.00. Too few played copies have sold to price each condition on its own.

Uncommon2018Sun & Moon era

Professor Elm's LectureLost Thunder 188a price & value

Name: Professor Elm's Lecture 188a Lost Thunder
Brand: Pokémon
SKU: sm8-188a

Professor Elm's Lecture 188a, Lost Thunder Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$25.00

0.0%4 weeks · Thin market

High confidence

Many recent comparable sales that agree closely.

7 ungraded in the last 90 days, all conditions
5 sales on record listed as near mint
Last sale Sep 11, 2026

How we calculate the UltraBall Market Value →

Medium liquidity46/100

Medium liquidity

Trades regularly, with some spread between sale prices.

About 2 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 7 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

Graded: PSA 9 $60.00PSA 10 $400

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Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value

People ask about this card

What is Professor Elm's Lecture 188a worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Professor Elm's Lecture 188a is about $25.00 ungraded near mint (7 sales in 90 days); PSA 9 about $60.00 (4 sales); PSA 10 about $400 (3 sales). Every grade’s price.
Why do two copies of Professor Elm's Lecture 188a differ in price?: As of Nov 12, 2026, there is one printing of Professor Elm's Lecture 188a, so the gap is condition: near mint is $25.00. Too few played copies have sold to price each condition on its own. Recent sales.

Price history

Professor Elm's Lecture 188a price over time

Nov 11Feb 11May 13Aug 13Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $12.80 on Nov 11, 2025, $25.00 on Nov 12, 2026. Lowest $12.80, highest $27.13.

Now: $25.00
4 weeks: 0.0%
90 days: −7.9%
1 year: +95%
Highest, 1Y: $27.13
Lowest, 1Y: $12.80

Recorded history starts October 2024. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.

Professor Elm's Lecture 188a price by month

Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.

Month	Ungraded	Change on month
November 2026to Nov 12, 2026	$25.00	0.0%
October 2026	$25.00	down −1.2%
September 2026	$25.31	down −6.7%
August 2026	$27.13	0.0%
July 2026	$27.13	–
May 2026	$22.15	down −11%
April 2026	$24.95	up +0.1%
March 2026	$24.94	up +1.8%
February 2026	$24.49	up +16%
January 2026	$21.19	up +59%
December 2025	$13.34	up +4.2%
November 2025	$12.80	down −7.9%

Matched to this exact card

Recent verified sales

Latest 13

RawProfessor Elm's Lecture 188A/214 League Challenge Stamped Promo Holo EN 2019Nov 10, 2026 · eBay · Condition not stated · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $28.49asking
PSA 10Sold via Courtyard · PSA cert #91850460Oct 11, 2026 · Courtyard · Buy It Now · View listing$600
PSA 10Sold via Courtyard · PSA cert #91850460Sep 27, 2026 · Courtyard · Buy It Now · View listing$400
RawProfessor Elm's Lecture League Challenge Stamped Holo SM Lost Thunder 188a/214Sep 11, 2026 · eBay · Sold as near mint · Auction · View listing · $14.99
RawThe Pokémon Company Professor Elm's Lecture Holo Promo Stamped 188a/214 EN 2019Aug 17, 2026 · eBay · Sold as near mint · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $25.00asking
PSA 10Sold via Fanatics Collect · PSA cert #91850460Jun 15, 2026 · Fanatics Collect · Auction · View listing$420
PSA 9Sold via eBay · PSA cert #126251833Mar 15, 2026 · eBay · Auction · View listing$60.00
PSA 9Sold via eBay · PSA cert #99958352Nov 16, 2025 · eBay · Auction · View listing$50.00
PSA 9Sold via eBay · PSA cert #61977432Oct 26, 2025 · eBay · Auction · View listing$54.11
PSA 9Sold via eBay · PSA cert #99958350Jul 7, 2025 · eBay · Best offer accepted · View listing$75.00
PSA 10Sold via eBay · PSA cert #74791328May 26, 2025 · eBay · Best offer accepted · View listing$275
PSA 10Sold via eBay · PSA cert #99958351Feb 14, 2025 · eBay · Best offer accepted · View listing$250
PSA 9Sold via eBay · PSA cert #63188520Jun 30, 2024 · eBay · Auction · View listing$32.87

Every sale here was matched to this exact card: the right number, set, printing and language, one card per listing, raw kept apart from graded. Where a venue sells by card and gives no listing title to check, the row says the venue named the card. Listings we can’t be sure of are left out. A price marked ≤ is an asking price, not a confirmed sale. On an accepted best offer we show what the buyer paid, not the asking price; where that isn’t on record the asking price is shown as a ceiling and never counts towards the price. A sale marked unusual is far from that grade’s market price: it stays on the record, and is left out of this page’s latest-sale and comparison figures. Sales record updated Nov 11, 2026.

Graded values

Professor Elm's Lecture 188a price by grade

Professor Elm's Lecture 188a: market price, 4-week change, sales pace and last sale by grade
Grade	Market value	4 wk	Sales/moSales a month	Last sale
UngradedHigh. Many recent comparable sales that agree closely.	$25.00Last $14.99 · Sep 11, 2026	0.0%	2Medium liquidity. Medium	$14.99Sep 11, 2026High. Many recent comparable sales that agree closely.
PSA 1016× rawLow. Few recent sales in this condition. Treat the figure as a rough guide.	$400	down −4.8%	No recent sales	–Low. Few recent sales in this condition. Treat the figure as a rough guide.
PSA 92.4× rawLow. Few recent sales in this condition. Treat the figure as a rough guide.	$60.00	0.0%	No recent sales	–Low. Few recent sales in this condition. Treat the figure as a rough guide.
CGC 9Low. Few recent sales in this condition. Treat the figure as a rough guide.	$10.80	–	No recent sales	–Low. Few recent sales in this condition. Treat the figure as a rough guide.

Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value

Grade it with PSA?

Grade yours from photos →Change the costs, or add your own odds →

If it gets a PSA 10: +$240
If it gets a PSA 9: −$54.63
PSA fee for a PSA 10: $59.99 Standard
Slab sale price to break even: $123at Standard, $59.99
Grading pays, at today’s prices: PSA 10 only
Historical PSA 10 rate: 7.2%

Against selling raw at $25.00, after the PSA fee for what the slab is worth (a 10 goes in at Standard, $59.99; a 9 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator. Each grade is charged the fee level its own slab price needs, so the break-even price carries the fee for a slab at that price, not the PSA 10 fee. These are outcomes if the card gets each grade, not the chance that it will. PSA has graded 83 copies; 6 got a 10.

Population

PSA graded: 83
PSA 10: 6
PSA 9: 49
Historical PSA 10 rate: 7.2%; PSA 10s of all graded

A higher historical PSA 10 rate than 3% of the Lost Thunder cards PSA has graded enough of.

Grader	Graded	10s	9s	10s share
PSA	83	6	49	7.2%
CGC	38	7	11	18%

PSA graded: 83
10s: 6
10s share: 7.2%
Historical PSA 10 rate: 7.2%

Every PSA grade (6)

PSA population by grade
Grade	Copies	Share
10	6	7.2%
9	49	59%
8	15	18%
7	7	8.4%
6	5	6.0%
5	1	1.2%

PSA’s count of Oct 13, 2026. The rate is PSA 10s over every copy PSA has graded.

CGC graded: 38
10s: 7
10s share: 18%
Historical CGC gem rate: 18%; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (8)

CGC population by grade
Grade	Copies	Share
10	7	18%
9.5	1	2.6%
9	11	29%
8.5	14	37%
8	2	5.3%
7	1	2.6%
5	1	2.6%
Authentic	1	2.6%

CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.

PSA’s count of Oct 13, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.

PSA 10 price against PSA’s population

The same 11 weeks, Jul 24, 2026 to Sep 28, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.

Left: PSA 10 price, US$. Right: PSA graded copies.

About

About this card

Professor Elm's Lecture is card 188a in the Lost Thunder price guide, a set released in November 2018 during the Sun & Moon era. Its rarity is Uncommon. The artwork is by nagimiso. In the checklist it sits after Professor Elm's Lecture 188/214 and before Sightseer 189/214.

It is the 30th most valuable of the 240 priced cards in Lost Thunder, behind Mimikyu-GX 226/214 (see the most valuable Lost Thunder cards).

What the data says

Only 7 ungraded copies sold in the last 90 days, so a single sale can move the value a long way.

A PSA 10 is valued at 16× the ungraded price ($400 against $25.00), and a PSA 9 at $60.00.

PSA has graded 83 copies, 6 of them PSA 10 (7.2%). That describes the copies sent in, not the chance a given card grades 10.

From prices of Nov 12, 2026 and sales to Sep 11, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: 0.0%ungraded, between 7-day averages
90 days: −7.9%ungraded, between 7-day averages
1 year: +95%ungraded; before Jul 22, 2026 from monthly averages
Direction: Thin marketunder 9 ungraded sales in 90 days: one sale can move the line
High since daily tracking: 8% under$27.13 on Jul 29, 2026, 7-day average; daily prices since Jul 22, 2026
Liquidity: Medium2.3 ungraded sales a month over 90 days
Price confidence: High confidenceMany recent comparable sales that agree closely.
Ungraded sold: 1in 30 days; 7 in 90
PSA 10 premium: 16×the ungraded price; the typical Lost Thunder card with a PSA 10 price: 12.9×
PSA 10 population: 6of 83 PSA graded, count of Oct 13, 2026

Card details

Set: Lost Thunder
Number: 188a
Set code: LOT
Rarity: Uncommon
Released: Nov 2, 2018
Era: Sun & Moon
Illustrator: nagimiso

Explore further

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Cite this price

Professor Elm's Lecture 188a (Lost Thunder) is worth $25.00 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/lost-thunder/professor-elms-lecture-188a).

Citation

Professor Elm's Lecture 188a (Lost Thunder) is worth $25.00 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/lost-thunder/professor-elms-lecture-188a).

Link

https://ultraball.com/cards/lost-thunder/professor-elms-lecture-188a

HTML

<a href="https://ultraball.com/cards/lost-thunder/professor-elms-lecture-188a">Professor Elm's Lecture 188a (Lost Thunder) price: $25.00 on UltraBall</a>

Lost Thunder