BTW I WOULD SELL BEFORE FRIDAY. B/C WHAT CAN HAPPEN FOR SHORTS CAN HAPPEN TO RETAIL INVESTORS WHEN THEY TRY TO SELL ON FRIDAY.
Here is a good post on reddit explaining it.
"So what happens next and why is Friday so important?
Since a great deal of call options are well into the money, brokerages are now expecting traders to exercise their options or sell their positions to be exercised else-wise. Since the 29th is a massive day for option expiration, millions of people are looking to cash in and dump shares / exercise to profit.
However, many of these traders do not have the capital required to actually open a position. This causes a huge problem because now all of those traders with options will A) be sold back to the MM who will immediately sell/ adjust their net delta to the downside to protect their risk exposure OR immediately exercise and sell their shares to avoid margin calls/ interest.
Not only does the take away of millions of option contracts and the exercise of such add a massive supply of shares to the market ( to be sold) it also forces dealers to sell shares to reduce their exposure they were forced to originally buy to hedge their delta from the calls. So, in theory the opposite of what happened on the way up can happen on the way down, but this time as dealers unload their shares forcibly to control their delta, shorts will also tack on to add pressure on the way down, also short selling shares to create a massive sell off."