In 2018, LEGO released 4 BrickHeadz Wizarding World sets, all of these sets have been retired. For that year, the total price of all retail sets cost $65, today those sets are valued around $226, a growth of 248%.
Most valuable 2018 LEGO BrickHeadz Wizarding World set
41621 Ron Weasley & Albus Dumbledore $79.71
Highest growth 2018 BrickHeadz Wizarding World set
41616 Hermione Granger +300.40%
Largest 2018 LEGO BrickHeadz Wizarding World set
41631 Newt Scamander & Gellert Grindelwald 247 pieces
Most owned 2018 BrickHeadz Wizarding World set
41615 Harry Potter & Hedwig
4 sets

41615 Harry Potter & Hedwig

Theme / Subtheme BrickHeadz / Wizarding World
Year 2018
Pieces 180
Availability Retired
41615 LEGO BrickHeadz Wizarding World Harry Potter & Hedwig
Retail $14.99
Value $51.44
Growth  +243.2%
Annual growth 10.8%

41616 Hermione Granger

Theme / Subtheme BrickHeadz / Wizarding World
Year 2018
Pieces 127
Availability Retired
41616 LEGO BrickHeadz Wizarding World Hermione Granger
Retail $9.99
Value $40.00
Growth  +300.4%
Annual growth 8.7%

41621 Ron Weasley & Albus Dumbledore

Theme / Subtheme BrickHeadz / Wizarding World
Year 2018
Pieces 245
Availability Retired
41621 LEGO BrickHeadz Wizarding World Ron Weasley & Albus Dumbledore
Retail $19.99
Value $79.71
Growth  +298.7%
Annual growth 10.5%

41631 Newt Scamander & Gellert Grindelwald

Theme / Subtheme BrickHeadz / Wizarding World
Year 2018
Pieces 247
Availability Retired
41631 LEGO BrickHeadz Wizarding World Newt Scamander & Gellert Grindelwald
Retail $19.99
Value $54.99
Growth  +175.1%
Annual growth 9.9%