Ever since the dawn of online auction sites, collectors have been buying and selling baseball cards on eBay.

And, with the hobby boom of the 2020s, the ecommerce giant has become even more vital to moving cards from those who have them to those who want them.

On a typical day, thousands of new eBay listings are posted, offering up just about every kind of card you can imagine, and thousands of other lots change hands. But some cards — some listings — make a lot more noise than others, garnering loads of bids and collecting many other “watchers” as their sale progresses.

Keeping an eye on the trends among these “most watched” baseball cards on eBay can be a great way to keep up with the rapidly changing winds and sentiments in this hobby.

To help with that, we present below the hottest baseball cards on eBay right now as determined by the number of watchers.

And, if you like these sorts of hot-card listings, you might also enjoy some of the other up-to-date “most watched” lists we’ve put together:

Now, happy trend-watching!

(Note: The information below contains affiliate links to eBay baseball card listings)


VICTOR ACOSTA 2021 BOWMAN CHROME RED WAVE REFRACTOR ON CARD AUTO # 1/5 PADRES

Watchers: 172  
# of Bids: 29
Current Bid: $1275
Auction Ends: 28-Sep-2021 03:09
See full listing on eBay (affiliate link)

1968 Topps Baseball Nolan Ryan Rookie Card RC #177 Graded PSA 7 Near Mint

Watchers: 123  
# of Bids: 20
Current Bid: $2859
Auction Ends: 26-Sep-2021 22:09
See full listing on eBay (affiliate link)

2021 Bowman Chrome Cristian Hernandez 1st Bowman Gold On Card Auto 22/50 Cubs

Watchers: 113  
# of Bids: 35
Current Bid: $1830
Auction Ends: 01-Oct-2021 02:10
See full listing on eBay (affiliate link)

1952 Bowman #101 Mickey Mantle Yankees RC Rookie HOF PSA 1 PR " ICONIC CARD "

Watchers: 109  
# of Bids: 30
Current Bid: $1425
Auction Ends: 27-Sep-2021 03:09
See full listing on eBay (affiliate link)

MIKE TROUT 2011 TOPPS UPDATE #175 RC ROOKIE CARD ANGELS SP PSA 10 GEM MINT

Watchers: 107  
# of Bids: 41
Current Bid: $3155
Auction Ends: 29-Sep-2021 03:09
See full listing on eBay (affiliate link)

2020 Topps Chrome SP Luis Robert #60 PSA 10 Gem Mint Mt Rookie Card RC Refractor

Watchers: 97  
# of Bids: 24
Current Bid: $291.66
Auction Ends: 27-Sep-2021 01:09
See full listing on eBay (affiliate link)

2018 Topps Update #US300 Juan Soto Hands on Hips SP RC ROOKIE CARD PSA 10 GEM MT

Watchers: 94  
# of Bids: 61
Current Bid: $1425
Auction Ends: 29-Sep-2021 01:09
See full listing on eBay (affiliate link)

2018 SHOHEI OHTANI TOPPS CHROME REFRACTOR RC/ROOKIE CARD #248/250 PSA 10 UPDATE

Watchers: 93  
# of Bids: 27
Current Bid: $770
Auction Ends: 30-Sep-2021 02:09
See full listing on eBay (affiliate link)

2021 BOWMAN CHROME 1ST ON CARD AUTO CHRISTIAN HERNANDEZ CUBS RARE 🔥🔥🔥

Watchers: 90  
# of Bids: 26
Current Bid: $415
Auction Ends: 29-Sep-2021 15:09
See full listing on eBay (affiliate link)

VICTOR ACOSTA 2021 BOWMAN CHROME BLUE REFRACTOR ON CARD AUTO # /150 PADRES SSP

Watchers: 84  
# of Bids: 14
Current Bid: $385
Auction Ends: 26-Sep-2021 23:09
See full listing on eBay (affiliate link)

2021 Bowman Chrome Luis Rodriguez 1st Bowman On Card Auto Los Angeles Dodgers

Watchers: 82  
# of Bids: 17
Current Bid: $127.5
Auction Ends: 29-Sep-2021 21:09
See full listing on eBay (affiliate link)

JUAN SOTO 2018 TOPPS CHROME UPDATE #HMT55 ROOKIE CARD PSA 10 GEM MINT RC

Watchers: 81  
# of Bids: 23
Current Bid: $255
Auction Ends: 27-Sep-2021 02:09
See full listing on eBay (affiliate link)

2021 BOWMAN CHROME Reginald Preciado Yellow on card AUTO 48/75 SD Padres

Watchers: 81  
# of Bids: 12
Current Bid: $227.5
Auction Ends: 30-Sep-2021 01:09
See full listing on eBay (affiliate link)

2018 SHOHEI OHTANI FLAWLESS RUBY AUTO RC/ROOKIE CARD #03/20 FACTORY ENCASED RARE

Watchers: 78  
# of Bids: 23
Current Bid: $1500
Auction Ends: 30-Sep-2021 03:09
See full listing on eBay (affiliate link)

2021 BOWMAN CHROME VICTOR ACOSTA ROOKIE ATOMIC REFRACTOR AUTO CARD #22/100

Watchers: 78  
# of Bids: 27
Current Bid: $227.5
Auction Ends: 28-Sep-2021 01:09
See full listing on eBay (affiliate link)

1952 topps mickey mantle rookie card 311 LQQK

Watchers: 77  
# of Bids: 39
Current Bid: $5100
Auction Ends: 28-Sep-2021 02:09
See full listing on eBay (affiliate link)

1952 Topps #261 Willie Mays New York Giants HOF SGC Authentic " ICONIC CARD "

Watchers: 77  
# of Bids: 20
Current Bid: $1125
Auction Ends: 30-Sep-2021 03:09
See full listing on eBay (affiliate link)

2021 BOWMAN CHROME PEDRO LEON RED SHIMMER REF AUTO ROOKIE CARD 4/5 ASTROS

Watchers: 71  
# of Bids: 24
Current Bid: $660
Auction Ends: 30-Sep-2021 02:09
See full listing on eBay (affiliate link)

2020 1st Bowman Chrome Anthony Volpe Auto Rookie Card RC NY Yankees Mint+ HOT!!

Watchers: 70  
# of Bids: 22
Current Bid: $389.55
Auction Ends: 27-Sep-2021 02:09
See full listing on eBay (affiliate link)

1999 Skybox Autographics Barry Bonds Auto Signature Signed Autograph Card

Watchers: 70  
# of Bids: 22
Current Bid: $255.9
Auction Ends: 28-Sep-2021 00:09
See full listing on eBay (affiliate link)

1986 Topps Traded Bo Jackson Rookie Card Kansas City Royals #50T PSA 10 Gem Mint

Watchers: 70  
# of Bids: 86
Current Bid: $287
Auction Ends: 27-Sep-2021 00:09
See full listing on eBay (affiliate link)

MIKE TROUT 2012 TOPPS TRIBUTE BLUE ON CARD AUTOGRAPH ANGELS AUTO SP #22/50

Watchers: 69  
# of Bids: 43
Current Bid: $620
Auction Ends: 30-Sep-2021 02:09
See full listing on eBay (affiliate link)

2018 SHOHEI OHTANI BOWMAN CHROME RC/ROOKIE CARD PERFECT PSA 10 BATTING 1 RED HOT

Watchers: 68  
# of Bids: 32
Current Bid: $734
Auction Ends: 30-Sep-2021 02:09
See full listing on eBay (affiliate link)

2016 Bowman Chrome Tyler o'neill auto ⚾️ rookie Card HOT!! $$

Watchers: 65  
# of Bids: 10
Current Bid: $66
Auction Ends: 28-Sep-2021 02:09
See full listing on eBay (affiliate link)