"Owning" crypto on Robinhood is NOT like holding it at Coinbase, Uphold, Binance or any other crypto friendly wallet or exchange... To put it point blank, You can not move it from place to place easily...
They hold it and you can't move it else where.
To move crypto from Robinhood to another hodling area you have to SELL it at Robinhood, transfer the cash to your funding account, then transfer that cash to your exchange or wallet and rebuy the coin...
There goes your being able to cash in on these swing quickly...
SO there ya go, yet ANOTHER reason to stay away from Robinhood, especially for crypto.
If you don't have a place to store your crypto:
I recommend Coinbase first: Click Here To Check Out Coinbase
(Plus they give free crypto to new accounts)
For DOGE I recommend TrustWallet: Click Here To Check Out Trustwallet
And I have to put in a plug for pipeflare, they pay ZEC DAILY to your wallet... PIPEPLARE FAUCET AND GAMES