To be clear, a stock spilt of any amount could happen at any time. However, a stock dividend of more than 2 for 1 cannot happen without shareholder approval for an increase in authorized shares. A share dividend has the affect of, not only being a boon for the shareholders per se but, being a big problem for the short sellers. We have already seen the results of a share dividend in late 2020. Big difference.There are still enough authorized shares to do a 2:1 split. Though it wouldn't be as effective as 5:1 or 10:1.