TD Ameritrade putting restrictions on trades:
Post# of 148282
Securities with trading restrictions
We have placed some restrictions on the following securities. These restrictions will not prevent clients from making basic buy and sell transactions. This list is as of January 29, 2021, 1:30PM ET.
AMC, CVM, EXPR, FOSL, GME, NOK, BB, BBBY, FIZZ, GSX, IRBT, NCMI, TR, UONE, VIR, NAK, NAKD, DDS, KOSS
The following restrictions are in place:
Stocks - 100% holding requirement (not marginable)
Long calls and puts are allowed, with the exception of options expiring today (1/29)
Covered call and short put orders may only be placed with a broker. Please be aware that wait times to speak with a broker may be longer than normal due to current market conditions.
Covered calls only allowed if your account currently has the shares
Short puts only if you have the maintenance/cash to cover the entire exercise amount of the short puts
All other complex options orders will not be accepted
We may also implement additional restrictions on the opening of option trades that expire Friday, January 29th
Please keep in mind that this list is not inclusive of every security restriction and may change at any time.
Learn more about our position on the events of the past few days in this statement from Schwab.