In 2020, LEGO released 2 Seasonal Halloween sets, all of these sets have been retired. For that year, the total price of all retail sets cost $23, today those sets are valued around $41, a growth of 77%.
Most valuable 2020 LEGO Seasonal Halloween set
40423 Halloween Hayride $22.05
Highest growth 2020 Seasonal Halloween set
854049 Pumpkin & Bat Duo +86.29%
2 sets

40423 Halloween Hayride

Theme / Subtheme Seasonal / Halloween
Year 2020
Pieces / Minifigs 148 / 3
Availability Retired
40423 LEGO Halloween Hayride
Retail $12.99
Value $22.05
Growth  +69.7%
Annual growth 7.4%

854049 Pumpkin & Bat Duo

Theme / Subtheme Seasonal / Halloween
Year 2020
Pieces 131
Availability Retired
854049 LEGO Halloween Pumpkin & Bat Duo
Retail $9.99
Value $18.61
Growth  +86.3%
Annual growth 6.8%