Investing app Robinhood blocked access to GameStop and other highflying names on Thursday as trading surged among retail users.
The move comes after GameStop (GME) stock has shot higher over the past week, inspiring a short squeeze. The action — driven by retail traders often using options — has spread to other names like BlackBerry (BB), AMC Entertainment Holdings (AMC), and Bed Bath & Beyond (BBBY). Several of those stocks were falling in premarket trading after enormous run-ups in the past few days.
Users began reporting that they couldn’t trade GameStop and other stocks on Thursday. They got a message that “This stock is not supported on Robinhood.”
In a statement on Thursday, Robinhood detailed which stocks now had restrictions. “In light of recent volatility, we are restricting transactions for certain securities to position closing only,” the company said. These include AMC Entertainment, BlackBerry, Bed Bath & Beyond, Express (EXPR), GameStop, Koss (Koss), Naked Brand Group (NAKD), and Nokia (NOK).
“We also raised margin requirements for certain securities,” Robinhood said. The trading platform is raising margin requirements for investors in GameStop and AMC to 100%, Robinhood told Barron’s on Wednesday.
On Thursday morning, Robinhood was also reporting outages.
Other brokers have instituted similar restrictions. Interactive Brokers (IBKR) on Wednesday put AMC, BlackBerry, Express, GameStop, and Koss option trading into liquidation “due to the extraordinary volatility in the markets,” the company said.
“In addition, long stock positions will require 100% margin and short stock positions will require 300% margin until further notice,” the company said. “We do not believe this situation will subside until the exchanges and regulators halt or put certain symbols into liquidation only. We will continue to monitor market conditions and may add or remove symbols as may be warranted.”
TD Ameritrade (AMTD) also placed restrictions on some transactions in GameStop and other securities, the broker said on Wednesday. A spokeswoman didn’t specify exactly what the company was doing but said it could include “actions like increasing margin requirements, or limiting certain types of transactions, like short sales and those that may involve unlimited risk. It is not uncommon for us to make such decisions, which we consider on an individual basis, in the interest of mitigating risk.”
“We have been adjusting our requirements for several days as we continued to see trends indicating unusual volume in an unprecedented market environment, which appear to be divorced from traditional market fundamentals,” the company said. “We have made what we believe to be prudent and appropriate decisions to place some limits on certain transactions for certain securities.”
And fast-growing privately held broker Webull said it was limiting some activities, too.
“Webull has been very successful in limiting our intraday risk during the course of these events by not allowing any short positions in these volatile names since as early as Friday of last week,” CEO Anthony Denier told Barron’s. “Trading has been open for these stocks and uninterrupted amidst this volatility and the only new restrictions we have placed is not allowing market orders opening of new multi-leg option strategy positions.”
Robinhood has grown faster than the rest of the industry over the past year, attracting younger investors. Last year, it said it had more than 13 million account-holders, adding 3 million from January until May. The privately held broker was sued last month by a Massachusetts regulator on allegations that it encourages risky investing among its clientele. The company denied those allegations and said it does not recommend stocks.
On Wednesday night, Robinhood sent a notice to users directing them to educational products in light of the recent volatility.
One trader who has made money in the GameStop trade through his Webull account was frustrated by the new limits.
“It’s one thing if I had a pattern of misconduct, or a lot of violations. It’s another thing for you to tell me that you can’t trade this stock because we don’t like what’s happening to it,” Brandon Luczek, a 28-year-old who lives in Virginia, told Barron’s on Wednesday night. “That’s not for you to decide. I have my own personal risk tolerance.”
Others on reddit’s wallstreetbets forum lashed out at Robinhood. “How in the hell is this legal? They are tanking our legitimately bought and held stocks/options by arbitrarily restricting trading,” one wrote.
Rugged coastal drives and fireside drams define a slow, indulgent journey through Scotland’s far north.
A haven for hedge-fund titans and Hollywood grandees, Greenwich is one of the world’s most expensive residential enclaves, where eye-watering prices meet unapologetic grandeur.
The lunar flyby would be the deepest humans have traveled in space in decades.
It’s go time for the highest-stakes mission at NASA in more than 50 years.
On April 1, the agency is set to launch four astronauts around the moon, the deepest human spaceflight since the final Apollo lunar landing in 1972.
The launch window for Artemis II , as the mission is called, opens at 6:24 p.m. ET.
National Aeronautics and Space Administration teams have been preparing the vehicles to depart from Florida’s Kennedy Space Center on the planned roughly 10-day trip. Crew members have trained for years for this moment.
Reid Wiseman, the NASA astronaut serving as mission commander, said he doesn’t fear taking the voyage. A widower, he does worry at times about what he is putting his daughters through.
“I could have a very comfortable life for them,” Wiseman said in an interview last September.
“But I’m also a human, and I see the spirit in their eyes that is burning in my soul too. And so we’ve just got to never stop going.”
Wiseman’s crewmates on Artemis II are NASA’s Victor Glover and Christina Koch, as well as Canadian Space Agency astronaut Jeremy Hansen.

What are the goals for Artemis II?
The biggest one: Safely fly the crew on vehicles that have never carried astronauts before.
The towering Space Launch System rocket has the job of lofting a vehicle called Orion into space and on its way to the moon.
Orion is designed to carry the crew around the moon and back. Myriad systems on the ship—life support, communications, navigation—will be tested with the astronauts on board.
SLS and Orion don’t have much flight experience. The vehicles last flew in 2022, when the agency completed its uncrewed Artemis I mission .
How is the mission expected to unfold?
Artemis II will begin when SLS takes off from a launchpad in Florida with Orion stacked on top of it.
The so-called upper stage of SLS will later separate from the main part of the rocket with Orion attached, and use its engine to set up the latter vehicle for a push to the moon.
After Orion separates from the upper stage, it will conduct what is called a translunar injection—the engine firing that commits Orion to soaring out to the moon. It will fly to the moon over the course of a few days and travel around its far side.
Orion will face a tough return home after speeding through space. As it hits Earth’s atmosphere, Orion will be flying at 25,000 miles an hour and face temperatures of 5,000 degrees as it slows down. The capsule is designed to land under parachutes in the Pacific Ocean, not far from San Diego.

Is it possible Artemis II will be delayed?
Yes.
For safety reasons, the agency won’t launch if certain tough weather conditions roll through the Cape Canaveral, Fla., area. Delays caused by technical problems are possible, too. NASA has other dates identified for the mission if it doesn’t begin April 1.
Who are the astronauts flying on Artemis II?
The crew will be led by Wiseman, a retired Navy pilot who completed military deployments before joining NASA’s astronaut corps. He traveled to the International Space Station in 2014.
Two other astronauts will represent NASA during the mission: Glover, an experienced Navy pilot, and Koch, who began her career as an electrical engineer for the agency and once spent a year at a research station in the South Pole. Both have traveled to the space station before.
Hansen is a military pilot who joined Canada’s astronaut corps in 2009. He will be making his first trip to space.
Koch’s participation in Artemis II will mark the first time a woman has flown beyond orbits near Earth. Glover and Hansen will be the first African-American and non-American astronauts, respectively, to do the same.
What will the astronauts do during the flight?
The astronauts will evaluate how Orion flies, practice emergency procedures and capture images of the far side of the moon for scientific and exploration purposes (they may become the first humans to see parts of the far side of the lunar surface). Health-tracking projects of the astronauts are designed to inform future missions.
Those efforts will play out in Orion’s crew module, which has about two minivans worth of living area.
On board, the astronauts will spend about 30 minutes a day exercising, using a device that allows them to do dead lifts, rowing and more. Sleep will come in eight-hour stretches in hammocks.
There is a custom-made warmer for meals, with beef brisket and veggie quiche on the menu.
Each astronaut is permitted two flavored beverages a day, including coffee. The crew will hold one hourlong shared meal each day.
The Universal Waste Management System—that’s the toilet—uses air flow to pull fluid and solid waste away into containers.
What happens after Artemis II?
Assuming it goes well, NASA will march on to Artemis III, scheduled for next year. During that operation, NASA plans to launch Orion with crew members on board and have the ship practice docking with lunar-lander vehicles that Elon Musk’s SpaceX and Jeff Bezos’ Blue Origin have been developing. The rendezvous operations will occur relatively close to Earth.
NASA hopes that its contractors and the agency itself are ready to attempt one or more lunar landing missions in 2028. Many current and former spaceflight officials are skeptical that timeline is feasible.

