June's BPV leaders among relievers.

After batting .265 with 16 HR in 279 AB a year ago, Jesus Aguilar has fared even better in 2018, compiling a .302 BA and 17 HR in 205 AB. Plus, Ian Desmond, Wade Davis, Manny Margot and Brent Suter.

Trevor Bauer's former top prospect pedigree was on full display in June.

Charlie Blackmon's production has really slowed down since a blistering start. Plus, Jose Peraza and Enrique Hernandez are surging, Seth Lugo thriving in rotation, and Derek Holland back from the dead.

Mitch Haniger has shown signs over the last two seasons of becoming an impact bat. Can he consolidate those flashes?

Justin Upton, Manny Machado, and Evan Gattis have produced in 2018, but Addison Reed looks for stronger numbers for the rest of the season.

Nick Castellanos is disappointing owners with his mediocre HR pace. Should we expect more?

Andrew Benintendi's growth this season has been evident especially when he hits in Fenway Park, where both his production and plate control go from good to elite.

Thanks to a .300+ BA, Austin Meadows has hit his way into a four-man rotation in the PIT outfield—does he have the skills to keep it up? Plus, Jordan Hicks, Dustin Fowler, Jaime Barria and Hunter Dozier.

Yankees starting pitcher Domingo German has seen his ownership rocket higher after posting a pair of high-strikeout wins during the past week. Who else is moving in the market?

This column simply filters by the largest positive and negative swing in value and draws some conclusions based on the BPIs.