Memory Stocks Are Collapsing! Why? If you can't articulate the reason, you shouldn't be investing in memory. 1. Memory is a commodity and demand is inelastic, meaning suppliers have pricing power in an undersupplied market and are screwed in an oversupplied market. Right now, we're undersupplied, but for how long? 2. Memory is defined by huge capex cycles and capex is going up. Don't want to invest because you want to keep your high margins? Someone else will. $Samsung Electronics Co., Ltd.(SSNLF)$ , $SK hynix(SKHY)$ , and $Micron Technology(MU)$ are all upping capex because they have to. Eventually, that leads to oversupply, see #1. 3. China isn't watching idly.