Fantasy Baseball Sell-Highs: Early-Season Overachievers to Trade Away? (Week 12)

June 12, 2026

Joey's fantasy baseball sell-highs, overvalued players to consider trading away. These hitters and pitchers have overperformed early and may bust going forward.

Welcome back, RotoBallers, to another edition of early-season overachievers. Each week of the fantasy baseball season, we look at which star players might be sell-high candidates. Last week, we dove into some prominent players like Kyle Tucker, Jarren Duran, and Braxton Ashcraft.

This week, we'll analyze five more early-season overachievers. These five players are sell-high candidates in Week 12 of the fantasy baseball season, and each of them is rostered in at least 75% of Yahoo! leagues. This list features a red-hot hitter at the plate, a former Cy Young winner, and a pitcher coming off his best start.

So, let's dive into the best sell-high candidates. All stats are through games on June 11.

Matt Chapman, 3B, San Francisco Giants

San Francisco Giants third baseman Matt Chapman has been on another level over the last few weeks. The veteran is slashing an impressive .358/.449/.642 with five home runs, eight doubles, and 22 RBI in his last 23 games since May 17. He has five home runs in the month of June already and has two two-homer games in the past week.

There is no doubt that Chapman is feeling it at the plate. His batting average has jumped 46 points during this stretch, and he just had a 4-for-5 day with two home runs, one double, and three RBI in Wednesday's walk-off win over the Washington Nationals. These recent numbers have made Chapman one of the top third basemen to own in fantasy since the middle of May.

Have a day, Matt Chapman 👏 pic.twitter.com/1pCj36EVyS

— SFGiants (@SFGiants) June 10, 2026

However, the Giants slugger is a clear sell-high candidate right now. He's not going to be hitting this well for the rest of the season, and his metrics back that up. Chapman currently ranks in the 18th percentile in expected batting average (.222), 15th percentile in expected batting slugging (.340), 35th percentile in barrel rate (6.7%), 2nd percentile in launch angle sweet-spot rate (24.6%), and 8th percentile in squared up rate (18.9%).

Those are all clear signs that Chapman will come back down to earth within the next few weeks. Fantasy managers should use his recent hot stretch and sell him while his fantasy value is the highest it will ever be.

Tanner Bibee, SP, Cleveland Guardians

Cleveland Guardians starting pitcher Tanner Bibee has been a disappointing fantasy option for the most part this season. He currently owns a 4.09 ERA and a 19.9% strikeout rate in 77 innings pitched. Bibee, though, has been better as of late. He has thrown a quality start in four of his last five outings and threw eight shutout innings with three strikeouts in his most recent outing against the Rangers last week.

Bibee appears to be trending up following a slow start. He has a 3.58 ERA in his last six starts and has completed at least eight innings in two of his last four starts. Despite throwing the ball better recently, he is still a sell high in all fantasy formats. The Guardians right-hander remains an inconsistent fantasy option and projects poorly for the rest of the season.

Bibee currently ranks in the bottom half of the league in expected ERA (4.54), expected batting average against (.259), average exit velocity (90.8 mph), barrel rate (9.6%), and hard-hit rate (45.4%). He also continues to have a hard time missing bats, as his 25.7% chase rate and 19.9% strikeout rate rank in the bottom 35% of the league. These metrics are extremely telling.

It's fair to assume that the 27-year-old won't be able to keep up this strong stretch moving forward. He has punched out three batters or fewer in three of his last five outings and just recently gave up seven earned runs across three innings back on May 25. It's best to trade Bibee away now with his value trending up.

Jackson Merrill, OF, San Diego Padres

San Diego Padres outfielder Jackson Merrill has been one of the bigger fantasy busts from the early rounds this season. He is batting just .207 with six home runs, 12 doubles, 25 RBI, and 10 stolen bases. While the stolen base numbers have been encouraging, his lack of batting average and home runs has brought down his fantasy value significantly.

That makes now a good time to "sell-high" on Merrill based on name value. There's someone in your league who would be willing to take a chance on a player who finished with a .292 batting average, 24 home runs, 90 RBI, and 16 stolen bases two years ago. However, there is very little hope that the Padres outfielder can eventually turn it around at the plate.

Action from Jackson. pic.twitter.com/eVqKuzoAsb

— San Diego Padres (@Padres) June 4, 2026

He is slashing just .172/.230/.301 with two home runs, four doubles, seven RBI, and two stolen bases over his last 25 games since May 12, and his metrics are down across the board from both his 2024 and 2025 campaigns. Merrill has a 37th percentile expected batting average (.241), 9th percentile squared-up rate (19.4%), 24th percentile chase rate (34%), and an 11th percentile Batting Run Value (-8).

There are some serious concerns about Merrill's game right now. His barrel rate (10.2%) is down 2.8% from last year, and his strikeout numbers are at an all-time high. If you can get something valuable in return based on his name or stolen base upside, do it. His value will continue to fall as the summer progresses.

Geraldo Perdomo, SS, Arizona Diamondbacks

Arizona Diamondbacks shortstop Geraldo Perdomo was one of the best all-around fantasy players in 2025. He batted .290 with 20 home runs, 33 doubles, 100 RBI, 98 runs scored, and 27 stolen bases across 161 games and finished fourth in the National League MVP award. Unfortunately, Perdomo has not been able to replicate this offensive success this season.

The 26-year-old is slashing just .244/.346/.353 with three home runs, nine doubles, 22 RBI, 28 runs scored, and eight stolen bases. These numbers put Perdomo on pace for just seven home runs, 70 runs scored, 55 RBI, and 20 stolen bases this year. He has simply not been the same fantasy player in 2026 as he was in 2025.

As a result, Perdomo is a sell-high candidate in Week 12 of the fantasy baseball season. With the Diamondbacks' infielder in the midst of his best offensive stretch of the season, now is the time to trade him away. Although he is batting .311 with one home run, nine runs scored, and seven RBI over his last 17 games, his poor expected slugging (.349), hard-hit rate (31.8%), and barrel rate (3%) don't offer much optimism for the future.

Savvy managers should use this recent surge as a way to get as much value back in a trade.

Sandy Alcantara, SP, Miami Marlins

Miami Marlins starting pitcher Sandy Alcantara has been a really inconsistent fantasy option through the first 2 1/2 months of the regular season. There are times when the former National League Cy Young winner looks like one of the top pitchers in baseball, and then there are times when things go off the rails for him on the mound.

Alcantara had back-to-back starts last month where he allowed at least six earned runs. He allowed six runs across six innings against the Braves on May 21 and gave up eight runs across 5 2/3 innings against the Blue Jays on May 26. The Marlins right-hander has since responded by delivering back-to-back quality starts, which included a seven-inning one-run ball gem against the Tampa Bay Rays last week.

Sandy Alcántara, Nasty 98mph Front Door Two Seamer. 😨 pic.twitter.com/siq1lq9xQp

— Rob Friedman (@PitchingNinja) June 7, 2026

Given that we are almost halfway through the season, this is just the type of pitcher Alcantara will be in 2026. For that reason, he is worth selling in all formats. His lack of swing and miss stuff is concerning (20.9% whiff rate), and the 30-year-old isn't missing as many bats as he used to (17.1% strikeout rate). Add in the fact that he also owns a 19th percentile expected batting average against (.268).

That makes now the time to trade away Alcantara. He is coming off two really good starts against the Nationals and Rays, and his fantasy value might never be higher.

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