At this point in the season, it can be tough to tell if any player’s performance – whether it be for better or worse – is a trend or just a blip on the radar. This is especially true for rookies, whose workloads can easily fluctuate on a week-to-week basis.

Week 2 of the NFL season saw some rookies continue to cement their roles on their respective teams, while others continue to toil on the bench. As I do every week, here is a rundown of three rookies whose stocks went up this week, and three whose went down.

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Stock Up

Phillip Lindsay (RB – DEN)
I highlighted Lindsay last week as a guy whose stock rose in Week 1, but he’s worth discussing yet again. His ownership percentage has skyrocketed over the past week, and he’s owned in 76 percent of Yahoo leagues as of Wednesday afternoon. But if he’s not owned in your league, he needs to be.

Lindsay is averaging the 11th-most fantasy points per game among all running backs, according to our scoring rankings, and once again outshined fellow rookie Royce Freeman in Week 2 against the Oakland Raiders. The former Colorado back rushed for 107 yards on 14 carries, including a 53-yard burst.

His schedule going forward is also prime for continued success. The Broncos have the third-easiest schedule remaining for running backs, according to our strength of scheduling rankings. Lindsay certainly deserves flex consideration going forward – and could cement himself as an RB2 with another strong outing in Week 3.

Will Dissly (TE – SEA)
Dissly’s long touchdown in Week 1 seemed like a total fluke. But anyone who used him in daily fantasy this weekend was undoubtedly pleased to see that the fourth-round pick out of Washington scored yet again in Week 2.

Although many considered him to be primarily a blocking tight end in Seattle, Dissly has become a favorite target for Russell Wilson, especially with wide receiver Doug Baldwin still out with a knee injury. Dissly has been targeted 10 times so far this year, hauling in six of those for a combined 147 yards and two touchdowns. Granted, his Week 2 touchdown game in garbage time against the Bears, but it’s still worth noting that he was on the field during a red zone possession.

Dissly is owned in fewer than 35 percent of leagues in both Yahoo and ESPN leagues as of Wednesday afternoon, so he’s still out there in tons of leagues. He’s certainly worth a stash or even a daily fantasy play, especially while Baldwin and fellow tight end Ed Dickson are out.

Antonio Callaway (WR – CLE)
Callaway’s arrow is pointing up now that Josh Gordon is in New England. The Browns will be desperate for anyone to start shining alongside Jarvis Landry and kickstart an offense that has struggled to score points through the first two weeks of the season.

The sixth-round pick – who many scouts considered to be one of the more talented players in the draft this year, but fell due to off-the-field concerns – hauled in three passes for 81 yards and a touchdown. His first major NFL highlight was a beautiful touchdown catch from Tyrod Taylor, which could have won the Browns the game had it not been for Zane Gonzalez’s kick woes.

Callaway is currently owned in less than 10 percent of leagues on the major fantasy websites, so he’s certainly out there on the waiver wire. It’ll be hard to justify his use as a flex for a while, but it’s worth keeping an eye on his role in Cleveland’s offense going forward.

Stock Down

Ronald Jones II (RB – TB)
Jones’ stock continues to take a hit – and he hasn’t even stepped on the field yet. The rookie out of USC was a healthy scratch once again in Week 2, and his owned percentage continues to plummet.

While the Buccaneers light up the scoreboard with Ryan Fitzpatrick under center, Peyton Barber has been the primary recipient in the backfield. Still, he hasn’t been setting the world on fire and has only averaged 2.6 yards per carry on 35 attempts, so it seems like Jones will get a shot at some point. But it just doesn’t look like the Bucs’ coaching staff is ready to give him that chance, yet.

D.J. Chark (WR – JAC)
After Marqise Lee was placed on the injured reserve during the preseason, fantasy owners scrambled to figure out who would be the top receivers in Jacksonville. It’s not like Chark was highly drafted, but some fantasy analysts and owners were hopeful that he could make an impact early on.

Instead, Chark has been invisible. He wasn’t targeted once in Week 1 and had one catch for Week 2 – which he ended up fumbling. His fellow receivers Keelan Cole and Dede Westbrook have instead been Blake Bortles‘ favorite targets, averaging 11.5 and 8.9 fantasy points per game, respectively. At this point, it’s not looking like Chark is going to have a fantasy impact at all this year.

Rashaad Penny (RB – SEA)
I know it seems like I’m just piling on Penny at this point, but I promise I don’t have a personal vendetta against him. Penny was awful in Week 1 and didn’t do much to inspire confidence in fantasy owners in his follow-up performance against the Bears.

Penny had 10 carries Monday night but gained just 30 yards and failed to catch a pass. This isn’t entirely on him, though.

Seattle’s offense has been entirely one-sided and is heavily relying on Russell Wilson again to make plays on his own. Penny’s main competitor for touches, Chris Carson, didn’t do much in Week 2, either, and head coach Pete Carroll bizarrely said that Carson was “winded” from playing on special teams. My recommendation would be to stay away from this backfield.

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Jon Munshaw is a correspondent at FantasyPros. For more from Jon, check out his archive and follow him @jon_munshaw.