Hackers steal $3.2 million from GMX whale

A chart of the GMX price over a one day period on January 3, 2023. Around 3pm there is a sudden drop from around $41.50 to just above $38, which then rebounds to around $40 fairly quickly before drifting back up towards $41.50.GMX/USD on January 3 (attribution)
An apparent wallet compromise netted hackers 82,519 GMX tokens from a wallet belonging to a GMX whale. The hackers exchanged these tokens for 2,627 ETH ($3.18 million), then swapped the assets cross-chain.

The sudden sale of such a large number GMX tokens (which are comparatively illiquid compared to much larger cryptocurrencies like Ethereum) caused the price to suddenly drop from ~$41.50 to ~$38 per token, though the token price recovered fairly quickly. GMX is the native token for the defi exchange of the same name.